Chapter 5-5 — BUILDING STANDARDS

Editor's note— Ord. No. 361, § 1, adopted December 12, 2016, amended Ch. 5-5 in its entirety to read as herein set out. Former Ch. 5-5 pertained to similar subject matter, and derived from Ord. 214, 11-21-88; Ord. 233, 2-11-91; Res. 491, 12-9-91; Ord. 252, 5-11-92, eff. 6-28-92; Ord. 253, 6-8-92; Ord. 254, 6-8-92; 1994 Code; Ord. 274, 12-28-95; Ord. 274U, 12-28-95; Ord. No. 295, §§ 3—10, 5-24-99; Ord. No. 311, §§ 3 —10, 10-14-02; Ord. No. 311-U, §§ 3—10, 9-23-02; Ord. No. 322, §§ 2—9, 1-14-08; Ord. No. 322-U, §§ 2

—9, 12-10-07; Ord. No. 324, § 1, 2-25-08; Ord. No. 335, §§ 2—11, 1-10-11; Ord. No. 335-U, §§ 2—11, 12- 13-10; Ord. No. 347, §§ 2—10, 11-25-13.

ARTICLE A. - GENERAL BUILDING STANDARDS PROVISIONS

5-5A-1: - RULES OF PRECEDENCE.

In the event two (2) or more provisions of any Building, Plumbing, Mechanical, Electrical, Residential, Green Building Standards, Housing or Administrative Codes of the City are found to be in conflict, the following rules of precedence shall apply:

A.

Local amendments of the City set forth in ordinances of the City shall control over amendments of the State set out in Title 24 of the California Building Code of Regulations and included in the California Building Standards Code and shall also control over the provisions of the International Code as published by the International Code Council or other code-writing organizations.

B.

Amendments of the State set out in Title 24 of the California Code of Regulations and included in the California Building Standards Code shall control over the provisions of the International Code as published by the International Code Council or other code-writing organization.

(Ord. No. 361, § 1, 12-12-16; Ord. No. 372, § 1, 11-18-19; Ord. No. 383, § 1, 11-14-22; Ord. No. 403, § 1, 11-10-25)

5-5A-2: - VIOLATIONS AND PENALTIES.

A.

No person shall erect, construct, enlarge, alter, repair, move, improve, remove, convert or demolish, equip, use, occupy, or maintain any land, building or structure, building service equipment, machine or equipment, or cause or permit the same to be done, in violation of the Building Code of the City, the Plumbing Code of the City, the Mechanical Code of the City, the Electrical Code of the City, the Housing Code of the City, the Administrative Code of the City, or the Dangerous Buildings Code of the City (collectively, the "Technical Codes"). Each such person shall be deemed guilty of a separate offense for each and every day or portion thereof during which any violation of any of the provisions of the Technical Codes is committed, continued, or permitted.

B.

No person shall remove, deface, alter, or obstruct from view a posted notice of the Building Official, or his or her authorized representative, when such notice constitutes a stop work order or a warning of substandard or hazardous conditions or prohibits or restricts the occupancy or use of a building, structure, or building service equipment regulated by the Technical Codes.

C.

Every violation of the Technical Codes shall be deemed a misdemeanor, punishable as set forth in Section 1-5-1(A) of this Code.

(Ord. No. 361, § 1, 12-12-16; Ord. No. 372, § 1, 11-18-19; Ord. No. 383, § 1, 11-14-22; Ord. No. 403, § 1, 11-10-25)

ARTICLE B. - BUILDING CODE

5-5B-1: - BUILDING CODE ADOPTED.

Except as hereinafter provided, the California Building Code, 2025 Edition (Part 2, Title 24, California Code of Regulations), which incorporates and amends the International Building Code, 2024 Edition, published by the International Code Council, including Appendix, C, I, and J, is hereby adopted by reference as the Building Code of the City of Hidden Hills. A copy of the Building Code of the City shall be maintained in the office of the City Clerk and shall be made available for public inspection while the Code is in force.

(Ord. No. 361, § 2, 12-12-16; Ord. No. 372, § 2, 11-18-19; Ord. No. 383, § 2, 11-14-22; Ord. No. 403, § 2, 11-10-25)

5-5B-2: - BUILDING CODE ADMINISTRATIVE PROVISIONS.

Except as hereinafter provided, Chapter 1 Division II Scope and Administration, of the California Building Code 2025 Edition, published by the International Code Conference, is hereby adopted by reference as the Administrative Code of the City of Hidden Hills. A copy of the California Building Code, Chapter 1 Division II, 2025 Edition shall be maintained in the Office of the Building Official while this code is in force. The administrative provisions governing the Building Code of the City shall be as set forth in Article G of this Chapter. Violation and penalty provisions shall be as set forth in Section 5-5A-3 of this Chapter.

(Ord. No. 361, § 2, 12-12-16; Ord. No. 372, § 2, 11-18-19; Ord. No. 383, § 2, 11-14-22; Ord. No. 403, § 2, 11-10-25)

5-5B-3: - ROOF COVERINGS.

A.

Subsections 1505.1.1 and 1505.1.2 of Section 1505 ("Fire Classification") of Chapter 15 ("Roof Assemblies and Rooftop Structures") of the Building Code of the City are hereby deleted in their entirety.

B.

Section 1514 is hereby added to Chapter 15 ("Roof Assemblies and Rooftop Structures") of the Building Code of the City to read as follows:

SECTION 1514 ROOF COVERINGS

Roof coverings for all buildings shall be Class A (having satisfied the fifteen-year

weathering test and certified as such by Underwriting Laboratories or an equivalent recognized testing agency) except that no wooden shakes or shingles, treated or untreated, shall be permitted. The roof-

covering assembly includes the roof deck, underlayment, insulation and covering which is assigned a roof- covering classification.

(Ord. No. 361, § 2, 12-12-16; Ord. No. 372, § 2, 11-18-19; Ord. No. 383, § 2, 11-14-22; Ord. No. 403, § 2, 11-10-25)

5-5B-4: - FOUNDATIONS ON EXPANSIVE SOIL.

A.

Section 1808.10 is hereby added to Chapter 18 ("Soils and Foundations") of the Building Code of the City to read as follows:

When there is a lack of a soils report, foundations shall be

designed for expansive soil. Foundation systems on expansive soil shall be constructed in a manner that will minimize damage to the structure from movement of the soil. Slab-on-grade and mat-type footings for buildings located on expansive soils may be designed in accordance with the provisions of Building Code Chapter 18, Section 1805 or such other engineering design based upon geotechnical recommendation as approved by the building official. For residential-type building, where such an approved method of construction is not provided, foundations and floor slabs shall comply with the following requirements:

Depth of foundations below the natural and finish grades shall be not less than 24 inches for exterior and 18 inches for interior foundations.

Exterior walls and interior bearing walls shall be supported on continuous foundations.

Foundations shall be reinforced with at least two continuous one-half-inch diameter deformed reinforcing bars. One bar shall be placed within four inches of the bottom of the foundation and one within four inches of the top of the foundation.

Concrete floor slabs on grade shall be cast on a four-inch fill of coarse aggregate or on a moisture barrier membrane. The slabs shall be at least three and one-half inches thick and shall be reinforced with welded wire mesh or deformed reinforcing bars. Welded wire mesh shall have a cross-sectional area of not less than five-hundredths square inch per foot each way. Reinforcing bars shall have a diameter of not less than three-eighths inch and be spaced at intervals not exceeding 24 inches each way.

The soil below an interior concrete slab shall be saturated with moisture to a depth of 18 inches prior to casting the concrete.

(Ord. No. 361, § 2, 12-12-16; Ord. No. 372, § 2, 11-18-19; Ord. No. 383, § 2, 11-14-22; Ord. No. 403, § 2, 11-10-25)

5-5B-5: - SWIMMING POOL ENCLOSURES AND SAFETY DEVICES.

A.

Section 202 of Chapter 2 ("Definitions") and Section 3109.2 of Chapter 31 ("Special Construction") of the Building Code of the City are hereby amended to add the following definition of "Barrier", and amend the definition of "Swimming Pool" and "pool" to read as follows:

"Barrier. Barrier is a fence, wall, building wall, or any combination of these that completely surrounds the swimming pool and obstructs access to the swimming pool."

"Swimming Pools. Any body of water created by artificial means which is designed, intended for use, or used for swimming or immersion purposes, which has a water depth exceeding 18 inches. The term, "pool," includes swimming pools, spas, hot tubs, above- and below-ground, and vinyl-lined pools; pool does not include plumbing fixtures such as bathtubs nor does it apply to man-made lakes, reservoirs, farm ponds, or ponds used primarily for public park purposes, water conservation purposes, irrigation purposes or for the watering of livestock."

B.

Section 3109.1 of Chapter 31 ("Special Construction") of the Building Code of the City is hereby amended to read as follows:

The design and construction of swimming pools, spas and hot tubs shall comply with this

code.

C.

Section 3109.3 through Section 3109.3.3 are hereby added to Chapter 31 ("Special Construction") of the Building Code of the City to read as follows: