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HomeMy WebLinkAbout3.3 3.3 TOWN OF LOS ALTOS HILLS April 6, 2006 Staff Report to the Planning Commission RE: AMENDMENT TO THE ZONING AND SITE DEVELOPMENT CODES WITH REGARD TO PHOTOVOLTAIC POWER AND SOLAR THERMAL ENERGY GENERATION FACILITIES. (SECTIONS 10-1.226, 10-1.239, 10=1:247;--f0- 1.702, 10-1.502, AND 10-2.301) FROM: Debbie Pedro, AICP, Senior Planner APPROVED BY: Carl Cahill, Planning Director/Acting City Manager C,C. RECOMMENDATION: That the Planning Commission: Forward a recommendation that the City Council adopt a resolution approving the proposed amendments to Sections 10-1.226, 10-1.239, 10-1.247, 10-1.702, 10-1.502, and 10-2.301 of the Los Altos Hills Municipal Code. DISCUSSION On March 16, 2006, the Planning Commission reviewed the Environmental Initiatives Committee's proposed amendments to the Zoning and Site Development Ordinance. (Attachment 1) Upon completion of their review, the Commission directed staff to prepare the following amendments as proposed by the Committee: 1. Sec. 10-1.226(a). Grid. "Grid"means the electrical distribution and transmission system in Los Altos Hills. 2. Sec. 10-1.239(a). Photovoltaic Power Generation Facility. "Photovoltaic Power Generation Facility" means a facility that converts sunlight into electricity through the utilization of semiconductor cells. 3. Sec. 10-1.247(a). Solar Thermal Energy Facility. "Solar Thermal Energy Facility"means a facility that converts radiant energy from the sun into useful thermal energy including heated water. 4. Sec. 10-1.702.Accessory Uses and Structures Permitted (R-A) (m)Photovoltaic Power Generation Facilities. (n) Solar Thermal Energy Facilities. Al 3 Staff Report to the Planning Conunission April 6,2006 Page 2 of 2 5. Sec. 10-1.502 Development Area (5) Photovoltaic Power Generation Facilities. A. Photovoltaic Power Generation Facilities that are connected to the Grid and that are 500 square feet or less are exempt from the requirements of this section. Photovoltaic Power Generation Facilities greater than 500 sq. ft. in area are subject to the requirements of this section, unless the Planning Commission determines that the offsite visual impacts of the facility are adequately mitigated. . 6. Section 10-2.301.Permits (8) The construction, placement, or installation of any structure supporting Photovoltaic Power Generation Facilities that is not more than six (6') feet in height and not more than nine hundred(900) square feet in development area; (9) The construction, placement or installation of Photovoltaic Power Generation Facilities on an existing structure that are less than eighteen (18") inches higher than the existing structure. The changes above have been incorporated into the draft ordinance in Attachment 2. CEQA STATUS The proposed ordinance amendment is exempt from California Environmental Quality Act(CEQA) pursuant to Section 15061(b)(3) of the CEQA Guidelines. ATTACHMENTS 1. Draft PV/Energy Efficiency Ordinance prepared by the Environmental Initiatives Committee dated February 29, 2006 2. Proposed amendments to the Zoning and Site Development Ordinance Sections 10- 1.226, 10-1.239, 10-1.247, 10-1.702, 10-1.502, and 10-2.301 3. Planning Commission staff report and attachments dated March 16, 2006 Attachment 1 Los Altos Hills Environmental Initiatives Committee PV/Energy Efficiency Ordinance Original Draft Amendments-2/29/06 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning).Article 2. (Definitions) Sec. 10-1.226. Grading. "Grading" shall mean to bring an existing surface to a designed form by excavating, filling, or smoothing operations.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.226(a). Grid. "Grid" means the electrical distribution and transmission system in Los Altos Hills. Sec. 10-1.226(x) (b).Habitable floor area. "Habitable floor area" shall mean floor area, as defined in Section 10-1.223 of the Zoning Code, which includes provisions for space heating, with floor to ceiling heights in excess of seven (7') feet, and is intended for living purposes for human occupancy. "Habitable floor area" shall include, but is not limited to, bedrooms, bathrooms, kitchens, living, family, and dining rooms, office/study areas, game rooms, pool houses, or similar use areas, as well as entry foyers, hallways, stairs, etc., which connect such areas. Floor area clearly intended for garage or storage use, barns or stables (excluding any habitable portion of the building), and basements and attics with floor to ceiling heights of less than seven (7') feet are not considered"habitable."(§ 3, Ord. 381, eff. April 19, 1996) Sec. 10-1.227. Height,structure. "Structure height" shall mean the vertical distance at any point from (i) the natural grade which existed prior to grading for the proposed structure, (ii) existing grade indicated on an approved grading plan, if different than the natural grade, or (iii) the proposed building pad if excavated below natural grade, whichever elevation is lowest, to the highest part of the structure directly above.(§ 1, Ord. 305, eff. October 3, 1986; § 2, Ord. 370, eff. May 20, 1994) Sec. 10-1.239.Person. "Person" shall mean any person, firm, or corporation, public or private, the State and its agencies or political subdivisions, the United States of America and its agencies and instrumentalities, and any agent, servant, officer, or employee of any of them.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.239(a). Photovoltaic Power Generation Facility. "Photovoltaic Power Generation Facility" means a facility that converts sunlight into electricity through the utilization of semiconductor cells. 1 of 9 1 R y Sec. 10-1.240. Removal. "Removal" shall mean the cutting to the ground of vegetation, including trees and plants, as well as complete extraction or killing by spraying.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.247.Site Development Permit. "Site Development Permit" shall mean the approved plans which bear the stamp of approval of the Planning Director or Planning Commission.(§ 1, Ord. 305, eff. October 3, 1986; § 3, Ord. 384,eff. October 18, 1996) Sec. 10-1.247(a). Solar Thermal Energy Facility. "Solar Thermal Energy Facility"" means a facility that converts radiant energy from the sun into useful thermal energy including heated water. Sec. 10-1.248. Stable. "Stable" shall mean a building used for housing hoofed animals.(§ 1, Ord. 305, eff. October 3, 1986) 2of9 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 7. (Residential- Agricultural District R-A) Sec. 10-1.702.Accessory Uses and Structures Permitted (R-A) The following types of accessory uses and structures shall be permitted in the Residential-Agricultural District: (a) Home occupations. Home occupations shall be permitted where the use is entirely subordinate to the primary use of the premises for the home of a family. There shall be no retail sales on the premises, no advertising of any kind visible from off the premises, no evidence from off the premises of the business, no parking more than normally required for a residence, and not over one assistant outside the family unit shall be employed. The raising on the premises of agricultural products and the sales thereof shall be expressly excepted from the provisions of this chapter but shall be subject to reasonable regulations by the Town. (b) Walls, fences, trees, and shrubs. Walls, fences, trees, and shrubs shall be permitted within the confines of a lot or contiguous lots subject to the height limitations set forth in Section 10-1.504 of Article 5 of this chapter. (c)House number signs. A sign not more than one and one-half(1 1/2) square feet in area bearing the house number and the name of the occupant, or a name designated, other than one of a commercial purpose, shall be permitted. (d) Accessory buildings. Accessory buildings may be constructed only in accordance with the setback requirements of this chapter. An accessory building may be erected prior to the construction of the main building only if it is agreed that the main building shall be completed within three (3) years from the date of the issuance of the permit for the accessory building. A temporary accessory building shall .be removed within thirty (30) days after the completion of the main building or within eighteen (18) months after the issuance of a permit for the accessory building, whichever is the earlier date. (e) Private stables. A maximum of two (2) hoofed animals per acre shall be permitted provided one additional hoofed animal may be kept on each additional one-half (1/2) acre, or fraction thereof, and provided, further, the conditions are satisfactory to the County Department of Health or such other agency as may be in charge of health standards for the Town. (f) Swimming pools, tennis courts, greenhouses, and workshops. Swimming pools, tennis courts, greenhouses, and workshops, and other accessory uses found by the Planning Commission to comply with the definition of accessory use, shall be permitted. 3 of 9 (g) Small family day care homes. Small family day care homes which provide care, protection and supervision of six (6) or fewer children (including children under the age of ten (10) years who reside at the home) in the provider's own home, for periods of less than twenty-four (24) hours per day, while the parents or guardians are away, pursuant to State regulations shall be permitted. No business license fee or tax shall be imposed on a small family day care home. (h) Household pets and domestic animals. Household pets and domestic animals as permitted by Town regulations may be kept. (i) Ornamental garden structures. Ornamental garden structures, such as benches, statuary,raised planters and fountains, shall be permitted. 0)Antennas and dish antennas. Antennas and dish antennas are permitted subject to the requirements set forth in Article 5 of Chapter 1 and Article 3 of Chapter 2 of Title 10. (k) Secondary dwelling. One (1) secondary dwelling on each parcel or lot of land in one (1) ownership which is of at least one (1) acre in gross area, subject to the applicable provisions of this chapter and other laws. The gross area shall be measured prior to any required dedication of right-of-way or access easements, when required as part of a site development permit application submitted subsequent to January 1, 1999. Secondary dwellings shall meet the following standards: (1)A secondary dwelling shall be subordinate to and architecturally consistent with the primary dwelling; (2) The secondary dwelling shall not exceed one thousand (1,000) square feet of floor area; (3) If the secondary dwelling is within or attached to the primary dwelling, it shall be constructed so that the entire structure appears to be one (1) dwelling; (4) If the secondary dwelling is separate from the primary dwelling, it shall not be sited in a visually prominent location, and shall respect the visual and acoustic privacy of primary dwellings on contiguous lots; (5) The lot on which a secondary dwelling is located must be connected to the public sanitary sewer system or have a private sewage disposal system that is deemed to be adequate for the addition of the second dwelling by the Santa Clara County Division of Health Services; and must have an adequate water supply; (6) The secondary dwelling shall not have a significant adverse impact on traffic flow and safety; 4 of 9 (7) Any vehicular access to a secondary dwelling shall be by a common driveway with the primary dwelling; (8) The views of prominent scenic features by primary dwellings on contiguous lots shall be preserved. (1) Temporary trailer coaches. Trailer coaches during construction or substantial remodeling of a primary dwelling are permitted, subject to receipt of a zoning permit, pursuant to Section 10-1.310, after a public hearing held by the Zoning Administrator pursuant to Section 10-1.1105. One (1) trailer coach specifically designed and equipped for human habitation may be placed on a lot, in accordance with the setback requirements of this Code and occupied only by the owner of the lot and members of the owner's family, as a temporary residence during construction or substantial remodeling of the primary dwelling on the lot. This permit shall be granted for no more than six (6) months, but shall be renewable upon the determination of the Zoning Administrator that the use has not resulted in detriment or nuisance to the adjacent properties or the neighborhood. However, in all cases, the trailer coach shall be removed prior to building permit final. (m) Photovoltaic Power Generation Facilities. (n) Solar Thermal Energy Facilities. 5 of 9 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 5. (Area, Coverage, Height, and Setback Limitations) Sec. 10-1.502 Development Area Except as provided in (c) and (d) below, the amount of development area in square feet allowable on a parcel or lot shall not exceed the amounts determined by application of the formula in (a) below, where An is net area in acres, S is the average slope of the parcel or lot in percent, as defined in Section 10-1.207, LUF is the Lot Unit Factor as defined by Section 10-1.233 and MDA is the Maximum Development Area allowable. (a) Maximum development area formula. For all parcels or lots, the allowable development area in square feet shall relate to the average slope of the parcel or lot and the Lot Unit Factor for the parcel or lot as specified in the formula given in (1), (2) and (3) below: (1) For parcels or lots where S is equal to or less than ten (10%) percent: MDA = LUF x 15,000 square feet (2) For parcels or lots where S is more than ten (10%) percent and less than thirty (30%) percent: MDA =LUF x [15,000 - 375 (S-10)] square feet (3) For parcels or lots where S is equal to or greater than thirty (30%) percent: MDA =LUF x 7,500 square feet. (b) Development area. Development area shall be measured in a horizontal plane and shall include the following: (1) Total Floor Area, as defined in Section 10-1.223 of this article: (2) The total area of land covered by structures not counted in paragraph (1) above, such as parking areas, patios, decks, walkways, swimming pools and tennis courts, together with other surfaces comprised of artificially emplaced building materials such as paving, roofing, masonry, stone or wood. Walkways constructed or unconsolidated building materials such as loose gravel, tanbark and other wood chips, and roof overhangs unsupported form the ground, are not counted as development area. (3) The first one hundred (100') feet of driveway, as measured along the center line, closest to the primary dwelling; and (4) That portion of a driveway exceeding twelve (12') feet in width which is located beyond the area described in (3) above. Where there is a common driveway in a driveway easement or a panhandle and the driveway, or a portion of the driveway, serves more than one (1) residence, then using 6of9 the regulations stated in (3) and (4) above, the amount of driveway area shall be proportioned to the residences based upon use of the driveway. (5) Photovoltaic Power Generation Facilities. A. That portion of the total area of land covered by structures not counted in paragraph (1) above supporting a Photovoltaic Power Generation Facilities that are connected to the Grid exceeding 500 square feet. B. An increase or credit of one square foot for every square foot of existing or proposed Photovoltaic Power Generation Facilities connected to the Grid, up to a maximum of 500 square feet; provided, however that the determination of the development area credit hereunder shall exclude any portion of the Photovoltaic Power Generation Facility that will be considered in determining a PV Credit under Title 8 Chapter 10 Energy. (c)Minimum MDA. The allowable development area on any parcel or lot shall not be reduced to less than seven thousand five hundred (7,500) square feet by application of the provisions of this section, except as set forth in Section 10-1.502(e) or except in the case of parcels or lots which have a Lot Unit Factor of .50 or less. Parcels or lots which have a Lot Unit Factor of .50 or less require a Conditional Development Permit and development area may be restricted below seven thousand five hundred (7,500) square feet as a condition of the permit. Maximum development area for lots which require a Conditional Development Permit shall be established as the maximum floor area allowed by Section 10-1.503(c) below, plus two thousand one hundred (2,100) square feet. The Site Development Authority may approve development area of up to a total of four thousand-five hundred (4,500) square feet for any lot or parcel without requiring a variance, so long as the findings for a Conditional Development Permit are made. (d) For any lot on which substantial areas of slope in excess of thirty (30%) percent constrain the allowable development area for the site, the lot unit factor and maximum development area may be calculated based solely on the flatter portion of the property, provided that: (1) the area used in the calculation results in a lot unit factor (LUF) in excess of 1.0 and provides a minimum of a one hundred sixty (160') foot diameter building circle within that area; (2) the remaining steep slopes excluded from the calculation are contiguous and placed in a conservation easement, prohibiting any construction, grading or development in perpetuity; and (3) driveway access to the building site is located outside of the conservation easement area. (e) The standards set forth in this section for maximum development area (MDA) are maximum standards. The City Council and Planning Commission have the discretion to apply stricter standards to reduce development area where site specific constraints dictate further limitations, such that the purposes of the ordinances and Design Guidelines are complied with. Some examples of site constraints include, but are not limited to, the shape or natural features of the lot, easements which restrict development, the potential for erosion, or high site visibility. 7of9 TITLE 10. (Zoning and Site Development) CHAPTER 2. (Site Development) Article 3. (Permits Required) Section 10-2.301. Permits No person shall commence or perform any activity described in subsection (a), (b), or (c) of this section without first obtaining a site development permit. A separate site development permit shall be required for each site on which any action(s) covered by this chapter is (are) to be undertaken. (a)Administrative review. The Planning Director or designee shall review and act on site development applications for the following activities without the necessity of notice and a hearing, provided that the Planning Director may deem it appropriate to conduct a noticed hearing pursuant to subsection (b) below for any of the items listed in this subsection (a): (1) The construction or placement of any spa, solar panel, or dish antenna in excess of three (3') feet in height, or thirty (30) square feet in development area; (2) Grading: (i) For fills equal to or exceeding two (2') feet but less than four (4') feet in vertical depth, at their deepest point measured from the natural ground surface; (ii) For excavations equal to or exceeding two (2') feet but less than six (6') feet in vertical depth, at their highest point measured from the natural ground surface; (iii) For excavations or fills, or any combination thereof, equal to or exceeding fifty (50) cubic yards, but less than two hundred fifty (250) cubic yards; (iv) For excavations or fills, or any combination thereof, equal to or exceeding an area of one thousand (1,000) square feet, but less than three thousand (3,000) square feet; (3) The construction of any structure, or any addition to a structure, which equals or exceeds six (6') feet in height but is less than nineteen (19') feet in height, or is less than two hundred fifty (250) square feet of floor area with a height in excess of nineteen (19') feet, provided that where a second story is to be added to a structure which presently does not include a second story, the site development review shall be processed pursuant to subsection (c)below; (4) The construction of any structure, combination of structures, or additions to structures which equal or exceed one thousand (1,000) square feet of development area, but are less than three thousand(3,000) square feet of development area; 8 of 9 z (5) The construction of any structure, combination of structures, or additions to structures which equal or exceed one hundred fifty (150) square feet of floor area, but are less than nine hundred (900) square feet of floor area; (6) The enlargement of an existing private vehicular access or driveway which does not result in a new or relocated access point to a public or private road; (7) The construction or installation of any dish antenna less than twelve (12') feet in diameter. (8) The construction, placement, or installation of any structure supporting Photovoltaic Power Generation Facilities that is less than twelve (12') feet in height and less than one thousand (1,000)square feet in development area; (9) The construction, placement or installation of Photovoltaic Power Generation Facilities on an existing structure that are less than eighteen (18") inches higher than the existing structure. 9of9 Attachment 2 Los Altos Hills Environmental Initiatives Committee PV/Energy Efficiency Ordinance Revised Draft Amenedments-4/6/06 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 2. (Definitions) Sec. 10-1.226. Grading. "Grading" shall mean to bring an existing surface to a designed form by excavating, filling, or smoothing operations.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.226(a). Grid. "Grid" means the electrical distribution and transmission system in Los Altos Hills. Sec. 10-1.226(x) (b). Habitable floor area. "Habitable floor area" shall mean floor area, as defined in Section 10-1.223 of the Zoning Code, which includes provisions for space heating, with floor to ceiling heights in excess of seven (7') feet, and is intended for living purposes for human occupancy. "Habitable floor area" shall include, but is not limited to, bedrooms, bathrooms, kitchens, living, family, and dining rooms, office/study areas, game rooms, pool houses, or similar use areas, as well as entry foyers, hallways, stairs, etc., which connect such areas. Floor area clearly intended for garage or storage use, barns or stables (excluding any habitable portion of the building), and basements and attics with floor to ceiling heights of less than seven (7') feet are not considered"habitable."(§ 3, Ord. 381, eff. April 19, 1996) Sec. 10-1.227. Height, structure. "Structure height" shall mean the vertical distance at any point from (i) the natural grade which existed prior to grading for the proposed structure, (ii) existing grade indicated on an approved grading plan, if different than the natural grade, or (iii) the proposed building pad if excavated below natural grade, whichever elevation is lowest, to the highest part of the structure directly above.(§ 1, Ord. 305, eff. October 3, 1986; § 2, Ord. 370, eff. May 20, 1994) Sec. 10-1.239. Person. "Person" shall mean any person, firm, or corporation, public or private, the State and its agencies or political subdivisions, the United States of America and its agencies and instrumentalities, and any agent, servant, officer, or employee of any of them.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.239(a). Photovoltaic Power Generation Facility. "Photovoltaic Power Generation Facility" means a facility that converts sunlight into electricity through the utilization of semiconductor cells. 1of10 Sec. 10-1.240. Removal. "Removal" shall mean the cutting to the ground of vegetation, including trees and plants, as well as complete extraction or killing by spraying.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.247. Site Development Permit. "Site Development Permit" shall mean the approved plans which bear the stamp of approval of the Planning Director or Planning Commission.(§ 1, Ord. 305, eff. October 3, 1986; § 3, Ord. 384, eff. October 18, 1996) Sec. 10-1.247(a). Solar Thermal Energy Facility. "Solar Thermal Energy Facility" means a facility that converts radiant energy from the sun into useful thermal energy including heated water. Sec. 10-1.248. Stable. "Stable" shall mean a building used for housing hoofed animals.(§ 1, Ord. 305, eff. October 3, 1986) 2 of 10 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 7. (Residential- Agricultural District R-A) Sec. 10-1.702.Accessory Uses and Structures Permitted (R-A) The following types of accessory uses and structures shall be permitted in the Residential-Agricultural District: (a) Home occupations. Home occupations shall be permitted where the use is entirely subordinate to the primary use of the premises for the home of a family. There shall be no retail sales on the premises, no advertising of any kind visible from off the premises, no evidence from off the premises of the business, no parking more than normally required for a residence, and not over one assistant outside the family unit shall be employed. The raising on the premises of agricultural products and the sales thereof shall be expressly excepted from the provisions of this chapter but shall be subject to reasonable regulations by the Town. (b) Walls, fences, trees, and shrubs. Walls, fences, trees, and shrubs shall be permitted within the confines of a lot or contiguous lots subject to the height limitations set forth in Section 10-1.504 of Article 5 of this chapter. (c)House number signs. A sign not more than one and one-half(1 1/2) square feet in area bearing the house number and the name of the occupant, or a name designated, other than one of a commercial purpose, shall be permitted. (d) Accessory buildings. Accessory buildings may be constructed only in accordance with the setback requirements of this chapter. An accessory building may be erected prior to the construction of the main building only if it is agreed that the main building shall be completed within three (3) years from the date of the issuance of the permit for the accessory building. A temporary accessory building shall be removed within thirty (3 0) days after the completion of the main building or within eighteen (18) months after the issuance of a permit for the accessory building, whichever is the earlier date. (e) Private stables. A maximum of two (2) hoofed animals per acre shall be permitted provided one additional hoofed animal may be kept on each additional one-half (1/2) acre, or fraction thereof, and provided, further, the conditions are satisfactory to the County Department of Health or such other agency as may be in charge of health standards for the Town. (f) Swimming pools, tennis courts, greenhouses, and workshops. Swimming pools, tennis courts, greenhouses, and workshops, and other accessory uses found by the Planning Commission to comply with the definition of accessory use, shall be permitted. 3 of 10 t � (g) Small family day care homes. Small family day care homes which provide care protection and supervision of six 6 or fewer children(including children under the � P P ( ) ( g age of ten (10) years who reside at the home) in the provider's own home, for periods of less than twenty-four (24) hours per day, while the parents or guardians are away, pursuant to State regulations shall be permitted. No business license fee or tax shall be imposed on a small family day care home. (h) Household pets and domestic animals. Household pets and domestic animals as permitted by Town regulations may be kept. (i) Ornamental garden structures. Ornamental garden structures, such as benches, statuary,raised planters and fountains, shall be permitted. 0)Antennas and dish antennas. Antennas and dish antennas are permitted subject to the requirements set forth in Article 5 of Chapter 1 and Article 3 of Chapter 2 of Title 10. (k) Secondary dwelling. One (1) secondary dwelling on each parcel or lot of land in one (1) ownership which is of at least one (1) acre in gross area, subject to the applicable provisions of this chapter and other laws. The gross area shall be measured prior to any required dedication of right-of-way or access easements, when required as part of a site development permit application submitted subsequent to January 1, 1999. Secondary dwellings shall meet the following standards: (1)A secondary dwelling shall be subordinate to and architecturally consistent with the primary dwelling; (2) The secondary dwelling shall not exceed one thousand (1,000) square feet of floor area; (3) If the secondary dwelling is within or attached to the primary dwelling, it shall be constructed so that the entire structure appears to be one (1)dwelling; (4) If the secondary dwelling is separate from the primary dwelling, it shall not be sited in a visually prominent location, and shall respect the visual and acoustic privacy of primary dwellings on contiguous lots; (5) The lot on which a secondary dwelling is located must be connected to the public sanitary sewer system or have a private sewage disposal system that is deemed to be adequate for the addition of the second dwelling by the Santa Clara County Division of Health Services; and must have an adequate water supply; (6) The secondary dwelling shall not have a significant adverse impact on traffic flow and safety; 4of10 (7) Any vehicular access to a secondary dwelling shall be by a common driveway with the primary dwelling; (8) The views of prominent scenic features by primary dwellings on contiguous lots shall be preserved. (1) Temporary trailer coaches. Trailer coaches during construction or substantial remodeling of a primary dwelling are permitted, subject to receipt of a zoning permit, pursuant to Section 10-1.310, after a public hearing held by the Zoning Administrator pursuant to Section 10-1.1105. One (1) trailer coach specifically designed and equipped for human habitation may be placed on a lot, in accordance with the setback requirements of this Code and occupied only by the owner of the lot and members of the owner's family, as a temporary residence during construction or substantial remodeling of the primary dwelling on the lot. This permit shall be granted for no more than six (6) months, but shall be renewable upon the determination of the Zoning Administrator that the use has not resulted in detriment or nuisance to the adjacent properties or the neighborhood. However, in all cases, the trailer coach shall be removed prior to building permit final. (m) Photovoltaic Power Generation Facilities. (n) Solar Thermal Energy Facilities. 5of10 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 5. (Area, Coverage, Height, and Setback Limitations) Sec. 10-1.502 Development Area Except as provided in (c) and (d) below, the amount of development area in square feet allowable on a parcel or lot shall not exceed the amounts determined by application of the formula in (a) below, where An is net area in acres, S is the average slope of the parcel or lot in percent, as defined in Section 10-1.207, LUF is the Lot Unit Factor as defined by Section 10-1.233 and MDA is the Maximum Development Area allowable. (a) Maximum development area formula. For all parcels or lots, the allowable development area in square feet shall relate to the average slope of the parcel or lot and the Lot Unit Factor for the parcel or lot as specified in the formula given in (1), (2) and (3) below: (1) For parcels or lots where S is equal to or less than ten (10%) percent: MDA = LUF x 15,000 square feet (2) For parcels or lots where S is more than ten (10%) percent and less than thirty (30%) percent: MDA =LUF x [15,000 - 375 (S-10)] square feet (3) For parcels or lots where S is equal to or greater than thirty (30%) percent: MDA = LUF x 7,500 square feet. (b) Development area. Development area shall be measured in a horizontal plane and shall include the following: (1)Total Floor Area, as defined in Section 10-1.223 of this article: (2) The total area of land covered by structures not counted in paragraph (1) above, such as parking areas, patios, decks, walkways, swimming pools and tennis courts, together with other surfaces comprised of artificially emplaced building materials such as paving, roofing, masonry, stone or wood. Walkways constructed or unconsolidated building materials such as loose gravel, tanbark and other wood chips, and roof overhangs unsupported form the ground, are not counted as development area. (3) The first one hundred (100') feet of driveway, as measured along the center line, closest to the primary dwelling; and (4) That portion of a driveway exceeding twelve (12') feet in width which is located beyond the area described in (3) above. Where there is a common driveway in a driveway easement or a panhandle and the driveway, or a portion of the driveway, serves more than one (1) residence, then using 6 of 10 the regulations stated in (3) and (4) above, the amount of driveway area shall be proportioned to the residences based upon use of the driveway. (5) Photovoltaic Power Generation Facilities. A. That portion of the total area of 'and covered by struetures not eounted in paragraph (1) above supporting a Photovoltaie Power Generation Fae*'*t*es that are eonneeted to the Grid exceeding 500 square . Photovoltaic Power Generation Facilities that are connected to the Grid and that are 500 square feet or less are exempt from the requirements of this section. Photovoltaic Power Generation Facilities greater than 500 sq. ft. in area are subject to the requirements of this section, unless the Planning Commission determines that the offsite visual impacts of the facility are adequately mitigated. B. An onerease or eredit of one square foot for every square foot--Of existing or proposed Photovoltaie Power Generation Facilities eonnected to the Grid, up to a of 500 square feet; provided, however that th determ*nation of the development area credit hereunder shall exelude any portion of the Photovoltaie Power Generation Fae"ity that will be eonsidered in dete i i a PV Cred*t under Title 8 Chapter 10 Energy. (c)Minimum MDA. The allowable development area on any parcel or lot shall not be reduced to less than seven thousand five hundred (7,500) square feet by application of the provisions of this section, except as set forth in Section 10-1.502(e) or except in the case of parcels or lots which have a Lot Unit Factor of .50 or less. Parcels or lots which have a Lot Unit Factor of .50 or less require a Conditional Development Permit and development area may be restricted below seven thousand five hundred (7,500) square feet as a condition of the permit. Maximum development area for lots which require a Conditional Development Permit shall be established as the maximum floor area allowed by Section 10-1.503(c) below, plus two thousand one hundred (2,100) square feet. The Site Development Authority may approve development area of up to a total of four thousand-five hundred (4,500) square feet for any lot or parcel without requiring a variance, so long as the findings for a Conditional Development Permit are made. (d) For any lot on which substantial areas of slope in excess of thirty (30%) percent constrain the allowable development area for the site, the lot unit factor and maximum development area may be calculated based solely on the flatter portion of the property, provided that: (1) the area used in the calculation results in a lot unit factor (LUF) in excess of 1.0 and provides a minimum of a one hundred sixty (160') foot diameter building circle within that area; (2) the remaining steep slopes excluded from the calculation are contiguous and placed in a conservation easement, prohibiting any construction, grading or development in perpetuity; and (3) driveway access to the building site is located outside of the conservation easement area. (e) The standards set forth in this section for maximum development area (MDA) are maximum standards. The City Council and Planning Commission have the discretion to apply stricter standards to reduce development area where site specific constraints 7of10 dictate further limitations, such that the purposes of the ordinances and Design Guidelines are exam complied with. Some les of site constraints include but are not P P limited to, the shape or natural features of the lot, easements which restrict development, the potential for erosion, or high site visibility. 8 of 10 TITLE 10. (Zoning and Site Development) CHAPTER 2. (Site Development) Article 3. (Permits Required) Section 10-2.301. Permits No person shall commence or perform any activity described in subsection (a), (b), or(c) of this section without first obtaining a site development permit. A separate site development permit shall be required for each site on which any action(s) covered by this chapter is (are) to be undertaken. (a)Administrative review. The Planning Director or designee shall review and act on site development applications for the following activities without the necessity of notice and a hearing, provided that the Planning Director may deem it appropriate to conduct a noticed hearing pursuant to subsection (b) below for any of the items listed in this subsection (a): (1) The construction or placement of any spa, solar panel, or dish antenna in excess of three (3') feet in height, or thirty (30) square feet in development area; (2) Grading: (i) For fills equal to or exceeding two (2') feet but less than four (4') feet in vertical depth, at their deepest point measured from the natural ground surface; (ii) For excavations equal to or exceeding two (2') feet but less than six (6') feet in vertical depth, at their highest point measured from the natural ground surface; (iii) For excavations or fills, or any combination thereof, equal to or exceeding fifty (50) cubic yards, but less than two hundred fifty (250) cubic yards; (iv) For excavations or fills, or any combination thereof, equal to or exceeding an area of one thousand (1,000) square feet, but less than three thousand (3,000) square feet; (3) The construction of any structure, or any addition to a structure, which equals or exceeds six (6') feet in height but is less than nineteen (19') feet in height, or is less than two hundred fifty (250) square feet of floor area with a height in excess of nineteen (19 ) P Y' feet provided that where a second story is to be added to a structure which presently does not include a second story, the site development review shall be processed pursuant to subsection (c) below; (4) The construction of any structure, combination of structures, or additions to structures which equal or exceed one thousand (1,000) square feet of development area, but are less than three thousand (3,000) square feet of development area; 9 of 10 (5) The construction of any structure, combination of structures, or additions to structures which equal or exceed one hundred fifty (150) square feet of floor area, but are less than nine hundred (900) square feet of floor area; (6) The enlargement of an existing private vehicular access or driveway which does not result in a new or relocated access point to a public or private road; (7) The construction or installation of any dish antenna less than twelve (12') feet in diameter. (8) The construction, placement, or installation of any structure supporting Photovoltaic Power Generation Facilities that is less than twelve (121) six (61) feet in height and less than nine hundred (900) square feet in development area; (9) The construction, placement or installation of Photovoltaic Power Generation Facilities on an existing structure that are less than eighteen (18") inches higher than the existing structure. 10 of 10 ATTACHMENT J TOWN OF LOS ALTOS HILLS March 16, 2006 Staff Report to the Planning Commission RE: DISCUSSION TO CONSIDER AMENDING ZONING AND SITE DEVELOPMENT CODES WITH REGARD TO PHOTOVOLTAIC POWER AND SOLAR THERMAL ENERGY GENERATION FACILITIES. (SECTIONS 10-1.226, 10-1.239, 10- 1.247, 10-1.702, 10-1.502, 0- 1.247, 10-1.702, 10-1.502,AND 10-2.301) FROM: Debbie Pedro, AICP, Senior Planner'�-,_->.�'. APPROVED BY: Carl Cahill, Acting City Manager C.C. RECOMMENDATION: That the Planning Commission: Discuss the proposed revisions and direct staff to prepare amendments to the ordinances as determined to be necessary. DISCUSSION On February 3, 2005, the City Council established the Environmental Initiatives Committee with the charter to: • Assist the Town in the development of and refinement of the Council's Environmental Strategic Goals for Town-owned property; • Recommend a set of initiatives that would lead to the progress and achievement of these goals; • Review other environmental initiatives to be proposed to the City Council, subject to the appropriate hearings, that would affect other aspects of Town policy including residential development. Per the direction of Council, the Committee developed an Energy Efficiency Ordinance to promote photovoltaic power (PV) and solar thermal energy facilities for residential development. The new ordinance will include PV and solar thermal energy facilities as permitted accessory uses and structures in the R-A district (Sectionl0-1.702) and exempt up to 500 sq. ft. of ground mounted PV arrays from MDA calculations (Section 10- 2.301). A copy of the draft ordinance with relevant sections of the Code highlighted in blue is included for your review. (Attachment 1) Committee Chairman Peter Evans will be available at the Planning Commission meeting to answer further questions about the proposed ordinance. Staff Report to the Planning Commission March 16,2006 Page 2 of 2 CEQA STATUS Pursuant to California Environmental Quality Act (CEQA), an Initial Study/Mitigated Negative Declaration will be prepared for the proposed ordinance amendment. ATTACHMENT 1. Draft PV/Energy Efficiency Ordinance prepared by the Environmental Initiatives Committee dated February 29, 2006 i Los Altos Hills Environmental Initiatives Committee PV/Energy Efficiency Ordinance 2/29/06 Draft PROPOSED ADDITIONS AND CHANGES TO TITLE 10(Zoning and Site Development) *Revisions in blue* TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 2. (Definitions) Sec. 10-1.226. Grading. "Grading" shall mean to bring an existing surface to a designed form by excavating, filling, or smoothing operations.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.226(a). Grid. "Grid" means the electrical distribution and transmission system in Los Altos Hills. Sec. 10-1.226(a) (b). Habitable floor area. "Habitable floor area" shall mean floor area, as defined in Section 10-1.223 of the Zoning Code, which includes provisions for space heating, with floor to ceiling heights in excess of seven (7') feet, and is intended for living purposes for human occupancy. "Habitable floor area" shall include, but is not limited to, bedrooms, bathrooms, kitchens, living, family, and dining rooms, office/study areas, game rooms, poolhouses, or similar use areas, as well as entry foyers, hallways, stairs, etc., which connect such areas. Floor area clearly intended for garage or storage use, barns or stables (excluding any habitable portion of the building), and basements and attics with floor to ceiling heights of less than seven (7') feet are not considered"habitable."(§ 3, Ord. 381, eff. April 19, 1996) Sec. 10-1.227.Height,structure. "Structure height" shall mean the vertical distance at any point from (i) the natural grade which existed prior to grading for the proposed structure, (ii) existing grade indicated on an approved grading plan, if different than the natural grade, or (iii) the proposed building pad if excavated below natural grade, whichever elevation is lowest, to the highest part of the structure directly above.(§ 1, Ord. 305, eff. October 3, 1986; § 2, Ord. 370, eff. May 20, 1994) Sec. 10-1.239.Person. "Person" shall mean any person, firm, or corporation, public or private, the State and its agencies or political subdivisions, the United States of America and its agencies and instrumentalities, and any agent, servant, officer, or employee of any of them.(§ 1, Ord. 305, eff. October 3, 1986) Sec. 10-1.239(a). Photovoltaic Power Generation Facility. "Photovoltaic Power Generation Facility" means a facility that converts sunlight into electricity through the utilization of semiconductor cells. 1 of 9 Sec. 10-1.240.Removal. "Removal" shall mean the cutting to the ground of vegetation, including trees and plants, as well as complete extraction or killing by spraying.(§ 1; Ord. 305, eff. October 3, 1986) Sec. 10-1.247.Site Development Permit. "Site Development Permit" shall mean the approved plans which bear the stamp of approval of the Planning Director or Planning Commission.(§ 1, Ord. 305, eff. October 3, 1986; § 3, Ord. 384, eff. October 18, 1996) Sec. 10-1.247(a). Solar Thermal Energy Facility. "Solar Thermal Energy Facility" means a facility that converts radiant energy from the sun into useful thermal energy including heated water. Sec. 10-1.248.Stable. "Stable" shall mean a building used for housing hoofed animals.(§ 1, Ord. 305, eff. October 3, 1986) t 2of9 TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 7. (Residential- Agricultural District R-A) Sec. 10-1.702.Accessory Uses and Structures Permitted (R-A) The following types of accessory uses and structures shall be permitted in the Residential-Agricultural District: (a) Home occupations. Home occupations shall be permitted where the use is entirely subordinate to the primary use of the premises for the home of a family. There shall be no retail sales on the premises, no advertising of any kind visible from off the premises, no evidence from off the premises of the business, no parking more than normally required for a residence, and not over one assistant outside the family unit shall be employed. The raising on the premises of agricultural products and the sales thereof shall be expressly excepted from the provisions of this chapter but shall be subject to reasonable regulations by the Town. (b) Walls, fences, trees, and shrubs. Walls, fences, trees, and shrubs shall be permitted within the confines of a lot or contiguous lots subject to the height limitations set forth in Section 10-1.504 of Article 5 of this chapter. (c)House number signs. A sign not more than one and one-half(1 1/2) square feet in area bearing the house number and the name of the occupant, or a name designated, other than one of a commercial purpose, shall be permitted. (d)_ Accessory buildings. Accessory buildings may be constructed only in accordance with the setback requirements of this chapter. An accessory building may be erected prior to the construction of the main building only if it is agreed that the main building shall be completed within three (3) years from the date of the issuance of the permit for the accessory building. A temporary accessory building shall be removed within thirty (30) days after the completion of the main building or within eighteen (18) months after the issuance of a permit for the accessory building, whichever is the earlier date. (e) Private stables. A maximum of two (2) hoofed animals per acre shall be permitted provided one additional hoofed animal may be kept on each additional one-half (1/2) acre, or fraction thereof, and provided, further, the conditions are satisfactory to the County Department of Health or such other agency as may be in charge of health standards for the Town. (f) Swimming pools, tennis courts, greenhouses, and workshops. Swimming pools, tennis courts, greenhouses, and workshops, and other accessory uses found by the Planning Commission to comply with the definition of accessory use, shall be permitted. 3of9 (g) Small family day care homes. Small family day care homes which provide care, protection and supervision of six (6) or fewer children (including children under the age of ten (10) years who reside at the home) in the provider's own home, for periods of less than twenty-four (24) hours per day, while the parents or guardians are away, pursuant to State regulations shall be permitted. No business license fee or tax shall be imposed on a small family day care home. is animals animals. Household pets and dourest (h) Household pets and domestic as permitted by Town regulations may be kept. (i) Ornamental garden structures. Ornamental garden structures, such as benches, statuary,raised planters and fountains, shall be permitted. 0)Antennas and dish antennas. Antennas and dish antennas are permitted subject to the requirements set forth in Article 5 of Chapter 1 and Article 3 of Chapter 2 of Title 10. (k) Secondary dwelling. One (1) secondary dwelling on each parcel or lot of land in one (1) ownership which is of at least one (1) acre in gross area, subject to the applicable provisions of this chapter and other laws. The gross area shall be measured prior to any required dedication of right-of-way or access easements, when required as part of a site development permit application submitted subsequent to January 1, 1999. Secondary dwellings shall meet the following standards: (1) A secondary dwelling shall be subordinate to and architecturally consistent with the primary dwelling; (2) The secondary dwelling shall not exceed one thousand (1,000) square feet of floor area; (3) If the secondary dwelling is within or attached to the primary dwelling, it shall be constructed so that the entire structure appears to be one (1) dwelling; (4) If the secondary dwelling is separate from the primary dwelling, it shall not be sited in a visually prominent location, and shall respect the visual and acoustic privacy of primary dwellings on contiguous lots; (5)The lot on which a secondary dwelling is located must be connected to the public sanitary sewer system or have a private sewage disposal system that is deemed to be adequate for the addition of the second dwelling by the Santa Clara County Division of Health Services; and must have an adequate water supply; (6) The secondary dwelling shall not have a significant adverse impact on traffic flow and safety; 4 of 9 <c akr M (7) Any vehicular access to a secondary dwelling shall be by a common driveway with the primary dwelling; (8) The views of prominent scenic features by primary dwellings on contiguous lots shall be preserved. (1) Temporary trailer coaches. Trailer coaches during construction or substantial remodeling of a primary dwelling are permitted, subject to receipt of a zoning permit, pursuant to Section 10-1.310, after a public hearing held by the Zoning Administrator pursuant to Section 10-1.1105. One (1) trailer coach specifically designed and equipped for human habitation may be placed on a lot, in accordance with the setback requirements of this Code and occupied only by the owner of the lot and members of the owner's family, as a temporary residence during construction or substantial remodeling of the primary dwelling on the lot. This permit shall be granted for no more than six (6) months, but shall be renewable upon the determination of the Zoning Administrator that the use has not resulted in detriment or nuisance to the adjacent properties or the neighborhood. However, in all cases, the trailer coach shall be removed prior to building permit final. (m) Photovoltaic Power Generation Facilities. (n) Solar Thermal Energy Facilities. 5 of 9 c TITLE 10. (Zoning and Site Development) CHAPTER 1. (Zoning). Article 5. (Area, Coverage,Height,and Setback Limitations) Sec. 10-1.502 Development Area Except as provided in (c) and (d) below, the amount of development area in square feet allowable on a parcel or lot shall not exceed the amounts determined by application of the formula in (a) below, where An is net area in acres, S is-the average slope of the parcel or lot in percent, as defined in Section 10-1.207, LUF is the Lot Unit Factor as defined by Section 10-1.233 and MDA is the Maximum Development Area allowable. (a) Maximum development area formula. For all parcels or lots, the allowable development area in square feet shall relate to the average slope of the parcel or lot and the Lot Unit Factor for the parcel or lot as specified in the formula given in (1), (2) and (3)below: (1) For parcels or lots where S is equal to or less than ten (10%) percent: MDA = LUF x 15,000 square feet (2) For parcels or lots where S is more than ten (10%)percent and less than thirty (30%)percent: MDA=LUF x [15,000 -375 (S-10)] square feet (3) For parcels or lots where S is equal to or greater than thirty (30%) percent: MDA=LUF x 7,500 square feet. (b) Development area. Development area shall be measured in a horizontal plane and shall include the following: (1)Total Floor Area, as defined in Section 10-1.223 of this article: (2) The total area of land covered by structures not counted in paragraph (1) above, such as parking areas, patios, decks, walkways, swimming pools and tennis courts, together with other surfaces comprised of artificially emplaced building materials such as paving, roofing, masonry, stone or wood. Walkways constructed or unconsolidated building materials such as loose gravel, tanbark and other wood chips, and roof overhangs unsupported form the ground, are not counted as development area. (3) The first one hundred (100') feet of driveway, as measured along the center line, closest to the primary dwelling; and (4) That portion of a driveway exceeding twelve (12') feet in width which is located beyond the area described in (3) above. Where there is a common driveway in a driveway easement or a panhandle and the driveway, or a portion of the driveway, serves more than one (1)residence, then using 6of9 the regulations stated in (3) and (4) above, the amount of driveway area shall be proportioned to the residences based upon use of the driveway. (5) Photovoltaic Power Generation Facilities. A. That portion of the total area of land covered by structures not counted in paragraph (1) above supporting a Photovoltaic Power Generation Facilities that are connected to the Grid exceeding 500 square feet. B. An increase or credit of one square foot for every square foot of existing or proposed Photovoltaic Power Generation Facilities connected to the Grid, up to a maximum of 500 square feet; provided, however that the determination of the development area credit hereunder shall exclude any portion of the Photovoltaic Power Generation Facility that will be considered in determining a PV Credit under Title 8 Chapter 10 Energy. (c)Minimum MDA. The allowable development area on any parcel or lot shall not be reduced to less than seven thousand five hundred (7,500) square feet by application of the provisions of this section, except as set forth in Section 10-1.502(e) or except in the case of parcels or lots which have a Lot Unit Factor of .50 or less. Parcels or lots which have a Lot Unit Factor of .50 or less require a Conditional Development Permit and development area may be restricted below seven thousand five hundred (7,500) square feet as a condition of the permit. Maximum development area for lots which require a Conditional Development Permit shall be established as the maximum floor area allowed by Section 10-1.503(c) below, plus two thousand one hundred (2,100) square feet. The Site Development Authority may approve development area of up to a total of four thousand-five hundred (4,500) square feet for any lot or parcel without requiring a variance, so long as the findings for a Conditional Development Permit are made. (d) For any lot on which substantial areas of slope in excess of thirty (30%) percent constrain the allowable development area for the site, the lot unit factor and maximum development area may be calculated based solely on the flatter portion of the property, provided that: (1) the area used in the calculation results in a lot.unit factor (LUF) in excess of 1.0 and provides a minimum of a one hundred sixty (160') foot diameter building circle within that area; (2) the remaining steep slopes excluded from the calculation are contiguous and placed in a conservation easement, prohibiting any construction, grading or development in perpetuity; and (3) driveway access to the building site is located outside of the conservation easement area. (e) The standards set forth in this section for maximum development area (MDA) are maximum standards. The City Council and Planning Commission have the discretion to apply stricter standards to reduce development area where site specific constraints dictate further limitations, such that the purposes of the ordinances and Design Guidelines are complied with. Some examples of site constraints include, but are not limited to, the shape or natural features of the lot, easements which restrict development, the potential for erosion, or high site visibility. 7of9 TITLE 10. (Zoning and Site Development) CHAPTER 2. (Site Development) Article 3. (Permits Required) Section 10-2.301.Permits No person shall commence or perform any activity described in subsection (a), (b), or(c) of this section without first obtaining a site development permit. A separate site. development permit shall be required for each site on which any action(s) covered by this chapter is (are)to be undertaken. (a)Administrative review. The Planning Director or designee shall review and act on site development applications for the following activities without the necessity of notice and a hearing, provided that the Planning Director may deem it appropriate to conduct a noticed hearing pursuant to subsection (b) below for any of the items listed in this subsection (a): (1) The construction or placement of any spa, solar panel, or dish antenna in excess of three (3') feet in height, or thirty (30) square feet in development area; (2) Grading: (i) For fills equal to or exceeding two (2') feet but less than four (4') feet in vertical depth, at their deepest point measured from the natural ground surface; (ii) For excavations equal to or exceeding two (2') feet but less than six (6') feet in vertical depth, at their highest point measured from the natural ground surface; (iii) For excavations or fills, or any combination thereof, equal to or exceeding fifty (50) cubic yards, but less than two hundred fifty(250)cubic yards; (iv) For excavations or fills, or any combination thereof, equal to or exceeding an area of one thousand(1,000) square feet,but less than three thousand(3,000) square feet; (3) The construction of any structure, or any addition to a structure, which equals or exceeds six (6') feet in height but is less than nineteen (19') feet in height, or is less than two hundred fifty (250) square feet of floor area with a height in excess of nineteen (19') feet, provided that where a second story is to be added to a structure which presently does not include a second story, the site development review shall be processed pursuant to subsection (c)below; (4) The construction of any structure, combination of structures, or additions to structures which equal or exceed one thousand (1,000) square feet of development area, but are less than three thousand(3,000) square feet of development area; 8of9 (5) The construction of any structure, combination of structures, or additions to structures which equal or exceed one hundred fifty (150) square feet of floor area, but are less than nine hundred(900) square feet of floor area; (6) The enlargement of an existing private vehicular access or driveway which does not result in a new or relocated access point to a public or private road; (7) The construction or installation of any dish antenna less than twelve (12') feet in diameter. (8) The construction, placement, or installation of any structure supporting Photovoltaic Power Generation Facilities that is less than twelve (12') feet in height and less than one thousand (1,000) square feet in development area; (9) The construction, placement or installation of Photovoltaic Power Generation Facilities on an existing structure that are less than eighteen (18") inches higher than the existing structure. 9 of 9