Earlier editions: 2026-09
Title XV — LAND USAGE›Chapter 150 — BUILDING REGULATIONS
Woodside Municipal Code § 150.06 Reserved
Woodside Municipal Code · 2026-10 edition · updated 2026-10-04 · Woodside
Cite as: Woodside Municipal Code § 150.06 · Text as of 2026-10-04
Sec. 150.01 - Building Code and Residential Code; amendments.¶
(A) Adoption of 2025 California Residential Code and the 2025 California Building Code. The Code of rules, regulations and standards, published by the International Code Conference under the title, 2024 Edition of the California Building Standards Code Part 2.5 as well as the 2025 edition of the California Building Standards Code, Part 2, Volumes 1 and 2 and Section 3109 of volume 2, and including the following appendices: Appendix C Agricultural Buildings (Group-U), Appendix I Patio Covers; and Appendix J Grading, hereinafter collectively called "California Residential Code" and the "California Building Code," regulating the erection, construction, enlargement, alteration, repair, moving, removal, demolition, conversion, occupancy, equipment, use, height, area and maintenance of all buildings and structures in the Town of Woodside, is hereby adopted, and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Residential Code and the Building Code of the Town of Woodside. The mandatory requirements of the appendix to the Building Code shall be enforceable to the same extent as if contained in the body of the Building Code. Any amendments and supplements of this Code shall be enforceable to the same extent as if contained in the body of the California Building Code.
(B) Powers and Duties of the Building Official. Section 104 Chapter 1 Administration of the 2025 California Building Code is hereby amended with the addition of the following language:
Right to disconnect utility service. The Building Official or authorized representative shall have the authority to disconnect or order discontinuance of any utility service or energy supply to buildings, structures, or equipment therein regulated by this Code and the construction codes in cases of emergency or where necessary for safety to life or property. Such utility service shall be discontinued until the emergency is abated or it is determined that the threat to life or property has been corrected.
(C) Fees. Fees shall be assessed according to the current Town of Woodside fee schedule adopted by Town Council resolution.
(D) Fire Hazard Severity Zones designated on a map titled "Very High Fire Hazard Severity Zones in LRA - Woodside", 2025, and retained on file at Woodside Town Hall, 2955 Woodside Road, Woodside, CA 94062, are Local Agency Very High Fire Hazard Severity Zones for the purpose of applying Chapter 7A, Materials and Construction Methods for Exterior Wildfire Exposure, of the California Building Code, as determined in division (J).
(E) Reserved.
(F) Roofing Requirements. Section 1505 of the California Building Code is hereby amended with the addition of the following language:
The roof covering or roof assembly for all structures shall be Class A fire retardant. The roof covering on any structure regulated by this Code shall be as specified in Table No. 1505.1 and as classified in Section 1505. The roof-covering assembly includes the roof deck, underlayment, insulation and covering which is assigned a roof-covering classification. Detached patio covers, spa covers, gazebos, sheds with 120 square feet or less of roof area and awning covers are exempt. Roof covering repairs of less than 300 square feet in a 12-month period are exempt from the provisions of this paragraph. These standards shall apply when there is conflict with less stringent standards of the California Building Code.
Existing and new exterior roof venting that is in the area affected by the work shall comply with the requirements of exterior venting in 504.10 of the current California Wildland-Urban Interface Code.
(G) Automatic Sprinkler Systems. Section 903.2 of the California Building Code and Section R309.3 of the California Residential Code is hereby amended with the addition of the following language:
(1) The following requirements shall apply to all new buildings or structures which require a building permit from the Town of Woodside for which a complete building permit application is submitted after May 1, 2000:
(a) Except as otherwise provided by this section, or as provided under section 903.2 of the California Building Code, or as provided under section R309 the California Residential Code (whichever is most stringent), automatic fire sprinkler systems shall be installed and maintained in every new building or structure of any type, use, occupancy or size which requires a building permit issued by the Town of Woodside.
(b) The term AUTOMATIC SPRINKLER SYSTEM as used in this section means an integrated system of underground and overhead piping, including a water supply such as a gravity tank, fire pump, reservoir, pressure tank, or connection by underground piping to a fire main, which system complies in all respects with the requirements for such systems contained in standards issued by the National Fire Protection Association based upon occupancy classification.
(c) As referenced in National Fire Protection Association (NFPA) standards, Section 13D, Chapter 2, Section 2-1 - General Provisions: Every automatic sprinkler system shall have at least one automatic water supply. Where stored water is used as the sole source of supply, the minimum quantity of water shall equal the water demand rate (as specified in Chapter 4 of Section 13D of the NFPA standards) times ten minutes. Exception: Dwelling units that are one story in height and less than 2,000 square feet in floor area shall have a water supply of at least seven minutes for the two sprinkler demand that is typically required as specified in Chapter 4 of Section 13D of the NFPA standards).
(d) As referenced in National Fire Protection Association (NFPA) standards, Section 13D, Chapter 2, Section 2-2 - Water Supply Sources: The following water supply sources shall be considered to be acceptable by this standard:
(1) A connection to a reliable waterworks system with or without an automatically operated pump.
(2) An elevated tank.
(3) A pressure tank designed to ASME standards for a pressure vessel with a reliable pressure source.
(4) A stored water source with an automatically operated pump (which could also be used to supply the residence's domestic water supply).
(2) The following structures are exempt from the requirements of this Section:
(a) Agricultural buildings, as defined in Section 202 of the 2025 California Building Code (including but not limited to greenhouses), which are located at least 60 feet from any residential structure and barns unless otherwise specified in this code.
(b) Not used.
(c) MANUFACTURED HOUSING as defined by California Health and Safety Code Section 18007.
(d) Structures not exceeding 1,000 square feet in area, except for a dwelling unit (which is not exempt), as defined in the 2025 California Building Code Section 202, and as defined in the 2025 California Residential Code Section 202, and as provided under the 2025 California Residential Code Section R309.
(e) Mausoleums of Type I construction, as defined by the 2025 California Building Code, which do not contain offices, chapels or other places where the public assembles on a regular basis.
(f) Open-air parking garages of Type I construction as defined by the 2025 California Building Code, which do not contain offices, stores or other places of public occupancy for purposes other than parking of vehicles.
(g) Roofed structures with no walls or doors.
(3) The requirements of this Section are intended to present minimum standards for new construction. Nothing in this Section shall prevent any fire authority having jurisdiction from adopting and enforcing any regulations which impose more stringent requirements. Further, any requirement of the current California Building Code, the Uniform Fire Code or the State Building Standards Code, which is more restrictive, specifies higher standards or mandates specific locations within a structure for automatic sprinkler systems, shall be applicable.
(4) Notwithstanding the other provisions of this section, no existing residential building or structure shall be required to conform to the requirements of this section, unless the addition, alterations or repairs to the existing building or structure within any 12-month period exceed the mandatory compliance threshold percentage of alteration limits as set forth in § WMC Section 150.01(J)
(5) Residential structures with attached garages for which a complete building permit application is submitted after May 1, 2000 shall have automatic fire sprinkler heads installed in the garage in addition to those required in the 13D standards of the National Fire Protection Association. The number and location of such fire sprinkler heads shall be such that full coverage of the garage will be obtained.
(6) When a stored water source with an automatically operated pump system is installed, the Woodside Fire Protection District will conduct an annual inspection of the system to insure reliability. Any deficiencies found to exist by the District as a result of such inspections shall be corrected by the property owner within 30 days of receipt of written notice from the District requiring such deficiencies to be corrected.
(H) Intentionally left blank.
(I) Intentionally left blank.
(J) Compliance with the requirements of divisions (D), (E) and (G).
(1) Compliance with divisions (D), (E) and (G) shall be required whenever:
(a) A structure has become uninhabitable due to lack of sanitary facilities, cooking facilities, or ability to maintain heat as defined by the California Building Code.
(b) Over 50 percent of the foundation is replaced or reinforced, other than the repair of a foundation failure, within a three year time period from date of permit final.
(c) Over 50 percent of the framing above the foundation is removed, altered and/or replaced and/or new walls are added or the sheetrock, wall siding and/or covering are removed and/or replaced, based on total length of all walls interior/exterior structural and/or non-structural walls at each floor level. This includes but is not limited to underfloor, floor, wall, and/or cladding if done within a three year time period from date of permit final.
(d) An addition which exceeds 50 percent of the original total floor area or is greater than 1,000 square feet is built within a three year time period from date of permit final. Additions include but are not limited to all floor levels, including basements.
(e) An alteration to an existing building results in greater than 500 square feet of non-habitable space becoming habitable space within a three year time period from date of permit final.
(f) When any combination of foundation, framing, addition, or conversion to habitable space exceeds 50 percent. (20 percent framing + 30 percent addition = 50 percent) if done within a three year time period from date of permit final.
(g) Any change in use or occupancy which creates a more hazardous fire / life safety condition as determined by the Building Official if done within a three year time period from date of permit final.
(h) A structure is converted from non-habitable to habitable within a three year time period from date of permit final.
(i) New basements are constructed regardless of size, or existing basements are expanded by more than 50 percent within a three year time period from date of permit final.
(2) A fire hydrant which complies with the Fire Code as adopted by the Woodside Fire Protection District and ratified by the Town of Woodside shall be required for all Structures when the total of (f) is 75 percent or greater.
(3) Driveways shall be required to comply with Woodside Fire Protection District Standards whenever (f) is 50 percent or greater.
(Ord. 1999-499, effective 11-25-99; Am. Ord. 2000-502, effective 3-9-00; Am. Ord. 2005-525, effective 5-12-05; Am. Ord. 2006-531, effective 8-10-06; Am. Ord. 2007-539, effective 1-10-08; Am. Ord. 2009-544, effective 4-9-09; Am. Ord. 2010-545, effective 3-25-10; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2012-552, effective 7-26-12; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.02 - Electrical Code.¶
(A) The Code of rules and regulations known and designated as the 2025 California Electrical Code, based on the 2023 National Electrical Code, including the Appendix chapters, printed therein, and all supplements subsequently issued thereto, as published by the National Fire Protection Association, regulating all electrical work in or on any building or property, or similar installation in the Town of Woodside, is hereby adopted, and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Electrical Code of the Town of Woodside. Any amendments and supplements to this Code shall be enforceable to the same extent as if fully contained in the body of the National Electrical Code.
(B) Exemption from Permit Requirements. Permits are not required for the following:
(1) Any electrical work done by an employee of a public utility in connection with rendering of electric service to any building or structure by said public utility.
(2) The ordinary care and maintenance of an established installation of electric equipment by the owner, operator, or user thereof, except that ordinary care and maintenance shall not be construed as including additions to such installation or other work such as the repair or replacement of any electric wiring, appliances, or apparatus which is a fixed part of such installation. The replacement of lamps and fuses, plugging-in apparatus, repair of plugging-in apparatus and similar work shall be construed as ordinary care and maintenance.
(3) The repair of appliances, apparatus, and materials which are not a fixed part of an established installation of electric equipment or which have been detached from such an installation for the purpose of repair.
(Ord. 1999-499, effective 11-25-99; Am. Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.03 - Plumbing Code.¶
(A) The Code of rules and regulations known and designated as the 2025 California Plumbing Code, based on the 2024 Uniform Plumbing Code, and the appendix chapters, prepared and published by the International Association of Plumbing and Mechanical Officials, providing for the protection of the public health and safety, requiring a permit and inspection for the installation or alteration of plumbing drainage systems; creating an Administrative Authority and describing its duties; defining certain terms; establishing minimum regulations for the installation, alteration or repair of plumbing and drainage systems and the inspection thereof; providing penalties for its violation and repealing conflicting ordinances, is hereby adopted for the Town of Woodside, and by this reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Plumbing Code of the Town of Woodside.
(B) Section 104.5 and Table 104.5 entitled "Permit Fees" is deleted.
(Ord. 1999-499, effective 11-25-99; Am. Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.04 - Mechanical Code.¶
(A) The Code of rules and regulations known and designated as the 2025 California Mechanical Code, based on the 2024 Uniform Mechanical Code including Appendix Chapters, prepared and published by the International Association of Plumbing and Mechanical Officials, including the standards printed therein, hereinafter called "California Mechanical Code," regulating the installation, maintenance, alteration, or repair of heating, ventilating, comfort, cooling and refrigeration systems; and providing for the issuance of permits and the collections of fees therefore, defining terms, providing penalties for its violation, is hereby adopted and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Mechanical Code of the Town of Woodside. Any amendments and supplements to this Code shall be enforceable to the same extent as if contained in the body of the California Mechanical Code.
(B) Section 104.5 and Table 104.5 entitled "Permit Fees" is deleted.
(Ord. 1999-499, effective 11-25-99; Am. Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.05 - Reserved.¶
Sec. 150.06 - Reserved.¶
Sec. 150.07 - Energy Code.¶
The Code of rules and regulations known and designated as the 2025 California Energy Code, with all previously approved errata and supplements is hereby adopted, and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Energy Code of the Town of Woodside.
(Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.08 - Reserved.¶
Sec. 150.09 - Historical Building Code.¶
The Code of rules and regulations known as and designated as the 2025 California Historical Building Code, published by the International Code Council, is hereby adopted, and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Historical Building Code of the Town of Woodside.
(Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.10 - Seismic strengthening for unreinforced masonry building.¶
The Code of rules and regulations known as and designated as 2025 California Existing Building Code, "Appendix Chapter Al Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings" and "Appendix Chapter A3 Prescriptive Provisions for Seismic Strengthening of Cripple Walls and Sill Plate Anchorage of Light, Wood-Frame Residential Buildings" excluding section A304.2, Foundations, based on the 2025 California Existing Building Code as published by the international Code Council, is hereby adopted, and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Existing Building Code of the Town of Woodside.
(Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-570, effective 2-25-16; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.11 - Referenced Standards Code.¶
The Code of rules and regulations known as and designated [as] 2025 California Referenced Standards Code, is hereby adopted, and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provide, as the Referenced Standards Code of the Town of Woodside.
(Ord. 2007-539, effective 1-10-08; Am. Ord. 2010-546, effective 1-13-11; Am. Ord. 2013-562, effective 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.12 - Reserved.¶
Sec. 150.13 - Green Buildings Standards Code.¶
The Code of rules and regulations known as and designated as 2025 California Green Building Standards Code as published in the referenced California Code of Regulations Title 24, Part 11, is hereby adopted and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Green Building Standards Code of the Town of Woodside.
(Ord. 2013-562, passed 1-9-14; Am. Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.14 - Existing Building Code.¶
The Code of rules and regulations known as and designated as 2025 California Existing Building Code as published in the referenced California Code of Regulations Title 24, Part 10, is hereby adopted and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Green Building Standards Code of the Town of Woodside.
(Ord. 2016-580, effective 1-12-17; Am. Ord. 2019-603, § 3, effective 12-12-19; Ord. 2022-629, § 3, effective 11-24-22; Ord. No. 2026-648, § 3, effective 2-12-26)
Sec. 150.15 - Wildland-Urban Interface Code.¶
(A) The Code of rules and regulations known as and designated as 2025 California Wildland-Urban Interface Code as published in the referenced California Code of Regulations Title 24, Part 7, is hereby adopted and by reference incorporated herein as if fully set forth, except as hereinafter otherwise provided, as the Wildland-Urban Interface Code of the Town of Woodside.
(1) Section 504.5.2 Amend to add, Exterior Covering, when the replacement of the wall exceeds 80 percent of the exterior wall surface to an existing building or structure within any one year period from the date of permit final. The exterior venting in the affected area of work only shall be replaced with exterior venting complying with section 706A.
(a) Chapter 5 of the California Wildland-Urban Interface Code, Section 504.11.1, Applicability, Exceptions; is amended as follows:
Section 504.11.7 is added: Buildings classified as a Group U Agricultural Building, including barns as defined in Section 202 of the California Building Code (see also Appendix C-Group U Agricultural Buildings), when located at least 50 feet from an applicable building. Any future changes to a barn (converting to living quarters or any other non-agricultural defined use) that change occupancy type would require applicable fire-resistant construction materials and methods that are in affect at time of proposed changes.
(Ord. No. 2026-648, § 3, effective 2-12-26)
Secs. 150.16—150.19 - Reserved.¶
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