Building Safety in Hawthorne, CA (2026)
8 verified building safety rules for Hawthorne, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Fire Sprinkler Requirements
Hawthorne requires approved automatic fire sprinkler systems in every new building of 5,000 square feet or more, any structure four or more stories tall, or where an A, B, E, F, H, I, M, or S occupancy sits 150 feet or farther from fire department vehicle access, under Hawthorne Code § 15.06.010.
Hawthorne Fire Sprinkler Requirement For New Buildings
Some RestrictionsHawthorne Code § 15.06.010
Other provisions of this code or of any other code of the city to the contrary notwithstanding, approved automatic sprinkler systems shall be installed and maintained in all new buildings or structures when one or more of the following conditions exist or will exist: 1. The total floor area of the building or structure is five thousand square feet or more; or 2. The building or structure is fou...
Door Locking Hardware
Every exterior swinging door on a Hawthorne house or attached garage, including the door from the garage into the home, needs a single-cylinder deadbolt with a one-inch bolt throw, a five-pin cylinder, and a cylinder guard, under Hawthorne Code § 15.60.090.
Hawthorne Residential Deadbolt And Door Standards
Some RestrictionsHawthorne Code § 15.60.090(A)(1)
A single or double door may be equipped with a single-cylinder deadbolt lock. The bolt shall have a minimum projection of one inch and be constructed so as to repel cutting tool attack. The deadbolt shall have an embedment of at least three-fourths inch into the strike receiving the projected bolt. The cylinder shall have a cylinder guard, a minimum of five pin tumblers, and shall be connected ...
Green Building Code
Hawthorne enforces the 2022 California Green Building Standards Code as its 'sustainable green building program' under Hawthorne Code § 15.40.010, covering energy efficiency, water conservation, material efficiency, and environmental quality in every new planning, design, and construction project in the city.
Hawthorne's Green Building Standards Code
Some RestrictionsHawthorne Code § 15.40.010
Pursuant to the provisions of Government Code Sections 50020, and 50022.1 to 50022.10, inclusive ... the rules, regulations, provisions and conditions set forth in that certain code entitled "2022 California Green Building Standards Code" including the appendices therein contained, promulgated and published by the International Code Council and the California Building Standards Commission ... a...
Carbon Monoxide Detectors
Hawthorne requires every short-term rental applicant to file a notarized affidavit swearing the unit has carbon monoxide detectors installed and meets or exceeds the city's fire and building-safety standards. Hawthorne Municipal Code § 17.74.020(A)(6) makes this affidavit, alongside adequate means of egress, a mandatory condition of getting a short-term rental permit.
Hawthorne STR Carbon Monoxide Detector Rule
Some RestrictionsHawthorne Municipal Code § 17.74.020(A)(6)
A notarized affidavit attesting that the short-term rental meets or exceeds fire and building safety requirements, including, but not limited to, installation of smoke and carbon monoxide detectors, and adequate means of egress, and that the unit complies with all requirements of the Hawthorne Municipal Code.
Building Permits
Hawthorne enforces the 2022 California Building Code, as locally amended, for construction citywide, and Municipal Code § 15.04.040 narrows the state's permit exemption list so that only fences six feet or under are exempt from a building permit.
Hawthorne Building Permits Under The 2022 CBC
Some RestrictionsHawthorne Code §§ 15.05.010, 15.04.040
Pursuant to the provisions of Sections 50020, and 50022.1 to 50022.10, inclusive, of the Government Code of the state ... the rules, regulations, provisions and conditions set forth in that certain code entitled the "2022 California Building Code," including the Appendices F, J, and O and Standards ... are hereby established and adopted ... and the same shall be designated, known and referred t...
Electrical Permits
Hawthorne wires every building to the 2022 California Electrical Code, adopted by reference under Hawthorne Code § 15.28.010, and layers on local amendments requiring copper conductors, underground service laterals for new construction, and a minimum 1-1/2 inch rigid galvanized steel service conduit.
Hawthorne Adopts 2022 California Electrical Code
Some RestrictionsHawthorne Code § 15.28.010
Pursuant to the provisions of Sections 50020, and 50022.1 to 50022.10, inclusive of the Government Code of the state ... the rules, regulations, provisions, and conditions set forth in those certain codes entitled "2022 California Electrical Code" ("CEC"), including the annexes and tables therein contained, promulgated and published by the National Fire Protection Association of Quincy, Massach...
Plumbing Permits
Anyone installing, moving, or demolishing plumbing, sewers, septic systems, gas piping, or pool-heater gas outlets in Hawthorne works under the 2022 California Plumbing Code, adopted wholesale by Hawthorne Code § 15.24.010, with Appendices A, B, D, I, and J and a filed copy on record with the city clerk.
Hawthorne Adopts 2022 California Plumbing Code
Some RestrictionsHawthorne Code § 15.24.010
Pursuant to the provisions of Sections 50020, and 50022.1 to 50022.10, inclusive, of the Government Code of the state ... the rules, regulations, provisions and conditions set forth in that certain code entitled "2022 California Plumbing Code" including Appendices A, B, D, I, and J therein contained, promulgated and published by the International Association of Plumbing and Mechanical Officials...
Building Inspections
Hawthorne's director of building and safety must withhold permits and certificates of occupancy whenever plan checks or field inspections reveal a zoning violation, and any permit issued in conflict with the code is void.
Hawthorne Building Inspections and Occupancy
Some RestrictionsHawthorne Code § 15.75.010
It shall be the duty of the director of building and safety, with respect to new construction, additions, alterations, changes of use or moving of existing buildings, to enforce this title by withholding of permits and certificates of occupancy where plan checks and field inspections reveal that completion of the project will result in a zoning violation. A certificate of occupancy shall not be...
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