Corona Municipal Code Ch. 15.04 Building Code

This chapter shall be cited as the Building Code of the City of Corona and any reference in the city's municipal code or any chapter thereof to the California Building Code, or other building code, refers and applies to this chapter.

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

(A) Subject to the particular additions, amendments and deletions set forth in this chapter, all the rules, regulations, provisions and conditions set forth in that certain document being marked and designated as 2025 California Building Code, Volumes 1 and 2, Cal. Code of Regulations Title 24, Part 2, including Appendices H and I, and including any supplements, errata, and revisions made thereto, are hereby adopted as the Building Code of the City of Corona.

(1) Chapter 1 Division II as adopted and amended in Chapter 15.02 of the Corona Municipal Code.

(2) Appendices A, B, C, D, E, F, G, J, K, L, M, N, O, P, and Q are not adopted.

(B) Grading requirements and permits shall be as required by Chapter 15.36 of the Corona Municipal Code.

(C) One certified copy of the 2025 California Building Code shall be kept on file in the office of the Building Official of the City of Corona, and any and all references thereto, are adopted as the Building Code of the City of Corona, subject to the changes contained in this chapter. Each and all of the regulations, provisions, penalties, conditions and terms thereof are referred to, adopted and made a part of this chapter, as though fully set forth at length.

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

The administrative procedures as adopted in Chapter 15.02 of the Corona Municipal Code shall apply to this chapter.

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

Designated sections of the 2025 California Building Code are amended to read as set forth in §§ 15.04.050, 15.04.060, 15.04.100, 15.04.120, and 15.04.150 through 15.04.157.

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

Chapter I Division II of the 2025 California Building Code is adopted as amended in Corona Municipal Code Chapter 15.02.

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

Section 502.1 is amended by adding the following to the end of the section:

"Address numbers shall be illuminated during all hours of darkness. Number, size, location and means of illumination shall comply with the Corona Fire Department Standard for address and premises identification unless an alternative means or method is approved by the fire code official. Address numbers shall be continuously maintained to comply with this section."

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016.)

Section 904.3.5 is amended in its entirety to read as follows:

"904.3.5 Monitoring. Where a building fire alarm or monitoring system is installed, automatic fire-extinguishing systems shall be monitored by the building fire alarm or monitoring system in accordance with NFPA 72."

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

Section 1505 is amended by adding the following subsection 1505.1.3 thereto as follows:

"1505.1.3 Class A roof covering requirement. Notwithstanding any other provision of this Building Code and Appendices to the contrary, Class A roof covering, as defined in Chapter 15 of the 2025 California Building Code, shall be applied:

1. To any building hereinafter constructed.

2. To any re-roofing of existing buildings, when fifty percent (50%) or more of the existing roof is replaced or overlaid within a 1-year period.

3. To any room additions where the aggregate area of the new roof exceeds fifty percent (50%) of the aggregate area of the existing roof."

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

Section 3109.1 is amended by adding the following subsection 3109.1.1 to read as follows:

"3109.1.1 Existing pools. The legal use of a swimming pool existing before the effective date of this chapter may continue, provided that the swimming pool is provided with an adequate barrier, as reasonably determined by the Building Official consistent with this chapter, and provided that the swimming pool, and/or the use thereof, does not create a safety hazard."

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)

“Chapter 35 - Referenced Standards is adopted in its entirety with the following amendments:

NFPA 13, 2025 Edition, Installation of Sprinkler Systems is hereby amended as follows:

Section 16.12.3.3 is hereby amended to read as follows:

The FDC shall contain a minimum of two 2 ½" inlets. The location shall be approved and be no more than 150 feet from a public hydrant. The FDC may be located within 150 feet of a private fire hydrant when approved by the fire code official. The size of piping and the number of inlets shall be approved by the fire code official. Fire department inlet connections shall be painted OSHA safety red. When the fire sprinkler design density requires 500 gpm (including hose stream demand) or greater, or a standpipe system is included, two 2 ½" inlets and one 4" swivel female NST inlet shall be provided. FDC inlets shall be equipped with check valves.

Section 9.4.3 is hereby amended to read as follows:

Section 19.1.1.2 is hereby added to read as follows:

When fire sprinkler systems are required in buildings of undetermined use other than warehouses, they shall be designed and installed to have a fire sprinkler density of not less than that required for an Ordinary Hazard Group 2 use, with no reduction(s) in density or design area. Warehouse fire sprinkler systems shall be designed to Figure 16.2.1.3.2(a) curve "G". Use is considered undetermined if a specific tenant/occupant is not identified at the time the sprinkler plan is submitted. Where a subsequent occupancy requires a system with greater capability, it shall be the responsibility of the occupant to upgrade the system to the required density for the new occupancy.

NFPA 13D 2025 Edition Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes is hereby amended as follows:

Section 4.1.4 is hereby added to read as follows:

Exterior alarm indicating device shall be listed for outside service and audible from the street from which the house is addressed. Exterior audible devices shall be placed on the front or side of the structure and the location subject to approval by the fire code official. Additional interior alarm devices shall be required to provide audibility throughout the structure and shall be powered from an uninterruptible circuit service normally servicing other appliances in the residence.

Exceptions:

1. When an approved water flow monitoring system is installed, interior audible devices may be powered through the fire alarm control panel.

2. When single- or multiple-station smoke alarms specified in CBC 907.2.11 are used to sound an alarm upon waterflow switch activation."

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013.)

Section H101.2 of Appendix H is amended in its entirety to read as follows:

"H101.2 Permits required. A building permit is required for any sign which requires a sign permit as specified in Chapter 17.74 of the Corona Municipal Code, except signs painted directly onto an existing building, sign structure, or sign board; or the refacing of a previously approved sign canister with Plexiglas, flexible sign face or similar material provided no structural changes are made to the sign structure or canister."

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019.)

The violation and penalties for Chapter 15.04 shall be as adopted in Chapter 15.02 and 15.70 of the Corona Municipal Code.

(Ord. 3421 § 3 (part), 2025; Ord. 3357 § 3 (part), 2022; Ord. 3306 § 3 (part), 2019; Ord. 3251 § 3 (part), 2016; Ord. 3159 § 3 (part), 2013; Ord. 3059 § 3 (part), 2010.)