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AN ORDINANCE OF THE TOWN OF LOS ALTOS HILLS AMENDING
CHAPTER 1.6 (ENERGY CODE) OF TITLE 8 (BUILDING
REGULATIONS) OF THE LOS ALTOS HILLS MUNICIPAL CODE AND
ADOPT BY REFERENCE REGULATIONS THAT REQUIRE THE
ELECTRIFICATION OF SPACE AND WATER HEATING SYSTEMS IN
NEW RESIDENTIAL BUILDINGS BASED ON SPECIAL LOCAL
CONDITIONS
WHEREAS, California Health and Safety Code section 17958 requires that cities adopt building
regulations that are substantially the same as those adopted by the California Building Standards
Commission and contained in the California Code of Regulations — Title 24; and
WHEREAS, the 2019 California Energy Code is a part of the 2019 California Code of Regulations
and implements minimum energy efficiency standards in buildings through mandatory
requirements, prescriptive standards, and performances standards; and
WHEREAS, Public Resources Code Section 25402.1(h)2 and Section 10-106 of the Building
Energy Efficiency Standards (Standards) establish a process which allows local adoption of energy
standards that are more stringent than the statewide Standards, provided that such local standards
are cost effective and the California Energy Commission finds that the standards will require
buildings to be designed to consume no more energy than permitted by the 2019 California Energy
Code; and
WHEREAS, the California Statewide Codes and Standards Program led the development of a
cost-effectiveness study for Energy Code reach codes that examined different performance-based
approaches for new construction of specific building types and determined that such modifications
will result in designs that cons -Lime less energy than they would under the 2019 State Energy Code;
and
WHEREAS, the City Council of the Town of Los Altos Hills finds that the local amendments to
the California Energy Code contained in this ordinance are cost effective and will require buildings
to be designed to consume no more energy than permitted by the California Energy Code; and
WHEREAS, pursuant to California Health and Safety Code Sections 17958.5, 17958.7 and
18941.5, the City Council of the Town of Los Altos Hills hereby finds that the modifications to
the building standards contained in the California Code of Regulations are reasonably necessary
based on the following local climatic, geological or topographical conditions:
I Climatic: The Town is located in Climate Zone 3 as established in the 2019 California
Energy Code. Climate Zone 3 incorporates communities near the coast from Marin
County to southern Monterey County including Los Altos Hills. The Town experiences
precipitation ranging from 18 to 22 inches per year with an average of approximately
20 inches per year. Ninety-five percent of precipitation falls during the months of
November through April, leaving a dry period of approximately six months each year.
Ordinance 589 Page 1
Relative humidity remains moderate most of the time and temperatures average 80
degrees the mid -50s in winter. These climatic conditions along with the greenhouse
emissions generated from residential structures requires exceeding the energy
standards for building construction established in the 2019 California Building
Standards Code. The Town's City Council also adopted a Climate Action Plan that has
a goal of reducing greenhouse gas emissions below 1990 levels by the year 2030. In
order to achieve and maintain this goal, the Town needs to adopt policies and
regulations that reduce the use of fossil fuels that contribute to climate change, such as
natural gas in buildings.
2. Geologic: The Town of Los Altos Hills is subject to earthquake hazard caused by its
proximity to San Andreas fault. This fault runs from Hollister, through the Santa Cruz
Mountains, epicenter of the 1989 Loma Prieta Earthquake, up the San Francisco
Peninsula eventually moving offshore at Daly City near Mussel Rock. This fault system
is considered a major Northern California earthquake faults which may experience
rupture at any time. Thus, because the City is within a seismic area which includes
these earthquake faults, the modifications and changes cited herein are designed to
better limit property damage as a result of seismic activity.
3. Topographic: The Town of Los Altos Hills consists of ridgelines, rolling foothills and
deep wooded canyons that affect climate conditions resulting in increased use of
heating and cooling systems and the trapping of potential greenhouse gases in the valley
floors.
WHEREAS, in accordance with Health and Safety Code section 17958.7, the City Council hereby
finds that each of the above findings is applicable to each of the modifications to the 2019 Edition
of the California Energy Code described in this ordinance; and
WHEREAS, the City Council of the Town of Los Altos Hills finds that this project is exempt
from the provisions of the California Environmental Quality Act ("CEQA"), pursuant to Section
15061(b)(3) of the CEQA Guidelines, because it can be seen with certainty that there is no
possibility that the ordinance will have a significant effect on the environment.
NOW, THEREFORE, the City Council of the Town of Los Altos Hills does hereby further
ORDAIN as follows:
1. Title 8, Chapter 1.6, "Energy Code," of the Los Altos Hills Municipal Code is hereby
amended to add Section 8-1.6.02, with additions in underline and deletions in strikethrough
to reflect local amendments. Sections not affected by this amendment are not included
below and shall remain in full force and effect.
8-1.6.02 Amended sections of adopted. code.
Notwithstanding the provisions of Section 8-1.6.01, the Energy Code is amended as follows:
Ordinance 589 Page 2
A. Section 100.0 Scope under subsection (e) 2. D. Low-rise residential buildings is amended
to read as follows:
i. Sections applicable. Sections 150.0 through 150.1 apply to newly constructed low-rise
residential buildings. In addition, all newly constructed residences, newly constructed
detached accessory dwelling units, and other newly constructed detached habitable
structures shall be electrically heated mixed -fuel buildings as defined in Section
100.1(b).
B. Section 100.1(b) Definitions is amended by adding or amending the following definitions
to read:
All -electric building is a building that has no natural gas or propane plumbing installed
within the building, and that uses electricity as the source of energy for its space heating,
water heating, cooking appliances, and clothes drying appliances.
Certified energy analyst is a person registered as a Certified Energy Analyst with the
California Association of Building Energy Consultants as of the date of submission of a
Certificate of Compliance as required under Section 10.103.
Electrically heated mixed -fuel building is a mixed -fuel building that uses electricity as
the source of energy for its space heating and water heating appliances.
Free standing accessory dwelling unit is a detached building that is not intended for sale
separate from the primary residence, on a lot that is zoned for single-family or multi -family
use, located on the same lot as an existing dwelling, and does not exceed 1,200 square feet
of total living area.
Mixed -fuel building is a building that is plumbed for the use of natural gas or propane as
fuel for space heating, water heating, cooking appliances and/or clothes drying appliances.
C. Section 150.0 Mandatory Features and Devices is amended to read as follows:
Low-rise residential buildings shall comply with the applicable requirements of Sections
150(a) through 150.0(s).
NOTE: The requirements of Sections 150.0(a) through 150.0(s) apply to newly constructed
buildings. Sections 150.2(a) and 150.2(b) specify which requirements of Sections 150.0(a)
through 150.0(s) also apply to additions or alterations.
D. Section 150.0(h) Space -conditioning equipment is amended by adding the following:
5. Systems using gas or propane space heating equipment to serve new residences, new
detached accessory dwelling units, and new detached habitable structures are not
permitted.
E. Section 150.0(n) Water heating system is amended by adding the following:
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1. Systems using gas or propane water heaters to serve new residences, new detached
accessory dwelling units, and new detached habitable structures are not permitted.
F. Section 150.0(s) is added to read as follows:
(s) Clothes Drying and Cooking. Buildings plumbed for natural gas or propane clothes
drying or cooking equipment shall include the following components for each gas terminal
or stub out:
1. Clothes Drying.
A. A dedicated 208/240 -volt, 30 -amp or greater electrical receptacle that is
connected to the electric panel with conductors of adequate capacity, within 3
feet of the appliance and accessible with no obstructions;
B. Both ends of the unused conductor shall be labeled with the words "For Future
Electric Clothes Dryer" and be electrically isolated;
C. A double pole circuit breaker in the electrical panel labeled with the words "For
Future Electric Clothes Dryer;" and
D. Other electrical components, including conductors, receptacles or blank covers,
related to this section shall be installed in accordance with the California
Electrical Code.
2. Cooktop.
A. A dedicated 208/240 -volt, 50 -amp or greater electrical receptacle that is
connected to the electric panel with conductors of adequate capacity, within 3
feet of the appliance and accessible with no obstructions;
B. Both ends of the unused conductor shall be labeled with the words "For Future
Electric Range" and be electrically isolated;
C. A double pole circuit breaker in the electrical panel labeled with the words "For
Future Electric Range;" and
D. Other electrical components, including conductors, receptacles or blank covers,
related to this section shall be installed in accordance with the California
Electrical Code.
3. Stand Alone Cooking Oven.
A. A dedicated 208/240 -volt, 20 -amp or greater or greater receptacle within 3 feet
of the appliance and accessible with no obstructions;
B. Both ends of the unused conductor shall be labeled with the words "For Future
Electric Oven" and be electrically isolated;
C. A double pole circuit breaker in the electrical panel labeled with the words "For
Future Electric Oven;" and
D. Other electrical components, including conductors,. receptacles or blank covers,
related to this section shall be installed in accordance with the California
Electrical Code.
2. Severability. If any provision of this ordinance or the application thereof to any person or
circumstance is held invalid or unconstitutional, the remainder of this ordinance, including
the application of such part or provision to other persons or circumstances shall not be
affected thereby ,and shall continue in full force and effect. To this end, provisions of this
ordinance are severable. The City Council of the Town of Eos Altos hills hereby declares
that it would have passed each section, subsection, subdivision, paragraph, sentence, clause,
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or phrase hereof irrespective of the fact that any one or more sections, subsections,
subdivisions, paragraphs, sentences, clauses, or phrases be held unconstitutional, invalid, or
unenforceable.
3. Effective Date; Publication. This ordinance shall take effect thirty (30) days after adoption.
Within fifteen days after the passage of this ordinance the City Clerk shall cause this
ordinance or a summary thereof to be published once, with the names of those City
Councilmembers voting for or against it in a newspaper of general circulation in the Town
of Los Altos Hills, as required by law. Prior to the effective date of this ordinance, the City
Clerk shall further file a copy of the ordinance, with the California Building Standards
Commission.
INTRODUCED: January 16, 2020
PASSED: February 20, 2020
AYES: Mayor Wu, Vice Mayor Tankha, Councilmember Corrigan,
Councilmember Tyson
Steve Mattas, City Attorney
Ordinance 589 Page 5