Earlier editions: 2026-09
Title 8 — Building Regulations
Los Altos Hills Municipal Code Ch. 1.2 California Residential Code
Los Altos Hills Municipal Code · 2026-10 edition · updated 2026-10-04 · Los Altos Hills
Cite as: Los Altos Hills Municipal Code Chapter 1.2 · Text as of 2026-10-04
§ 8-1.2.01. Adoption of 2022 California Residential Code.¶
(a) The 2022 California Residential Code, Part 2.5, Title 24 of the California Code of Regulations, a portion of the California Building Standards Code, as defined in the California State Health and Safety Code Section 18901 et seq., (hereinafter referred to as the "Residential Code"), including all Appendices and any rules and regulations promulgated pursuant thereto are hereby adopted and incorporated by reference herein.
(b) One copy of the Residential Code shall be kept on file at the Town of Los Altos Hills.
(§ 2, Ord. 558, eff. February 15, 2015; § 1, Ord. 568, eff. March 16, 2017; § 1, Ord. 585, eff. January 18, 2020; § 1, Ord. 604, eff. November 17, 2022)
§ 8-1.2.02. Amended sections of adopted codes.¶
Notwithstanding the provisions of Section 8-1.2.01, the Residential Code is hereby amended to read as follows:
(a) Section R313.2 is amended to read:
R313.2 One- and two-family dwellings automatic sprinkler systems. An automatic sprinkler system shall be installed in all new one- and two-family dwellings and existing one- and two-family dwellings when additions are made that increase the fire area to more than 3,600 square feet.
Exceptions:
- Detached Accessory Dwelling Unit, provided that all of the following are met:
1.1.¶
1.2. The existing primary residence does not have automatic fire sprinklers.¶
1.3. The accessory detached dwelling unit does not exceed 1,200 square feet in size.¶
1.4. The unit is on the same lot as the primary residence.¶
1.5.¶
The unit meets all apparatus access and water supply requirements of Chapter 5 and Appendix B of the 2022 California Fire Code, as amended.
- When additions are made to existing structures, causing the fire area to exceed 3,600 square feet, and all of the following are met:
2.1. Building addition does not exceed 500 square feet.¶
2.2.¶
The resultant structure meets all water supply requirements of Chapter 5 and Appendix B of the 2022 California Fire Code, as amended.
(b) Section R328.7 is amended to read:
R328.7 Fire detection. Rooms and areas within dwelling units, basements and attached garages in which ESS are installed shall be protected by smoke alarms in accordance with Section R314. A heat detector, listed and interconnected to the smoke alarms, shall be installed in locations within dwelling units and attached garages where smoke alarms cannot be installed based on their listing.
[SFM] ESS installed in Group R-3 and townhomes shall comply with the following:
Rooms and areas within dwelling units, sleeping units, basements and attached garages in which ESS are installed shall be protected by smoke alarms in accordance with Section R314.
A listed heat alarm interconnected to the smoke alarms shall be installed in locations within dwelling units, sleeping units and attached garages where smoke alarms cannot be installed based on their listing.
Exceptions:
| 1. | A listed heat detector may be used in place of a heat alarm, so long as it is interconnected with devices that provide an audible alarm at all sleeping areas. |
|---|---|
| 2. | A fire sprinkler associated with an approved automatic sprinkler system that triggers an audible alarm upon activation of the waterflow switch, may be used in place of a heat alarm. |
(c) Section R337, Materials and Construction Methods for Exterior Wildfire Exposure, is hereby adopted in its entirety.
(§ 2, Ord. 558, eff. February 15, 2015; § 1, Ord. 568, eff. March 16, 2017; § 1, Ord. 585, eff. January 18, 2020; § 1, Ord. 588, eff. January 18, 2020; § 1, Ord. 604, eff. November 17, 2022; § 1, Ord. 607, eff. January 6, 2023)
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