Corona Municipal Code Ch. 15.07 Residential Code

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

(Ord. 3421 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (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 Residential Code, Cal. Code of Regulations Title 24, Part 2.5, including Appendix BF, and including any supplements, errata, and revisions made thereto, is hereby adopted as the Residential Code of the City of Corona.

(1) Chapter 1 Division II is not adopted.

(2) Appendices AA, AB, AC, BA, BB, BC, BD, BE, BG, BH, BI, BJ, BK, BL, BM, BN, BO, CA, CB, CC, CD, CE, CF, CG, CH, CI, CJ, CK, and appendices NA - NL are not adopted as part of this code.

(B) One certified copy of the 2025 California Residential 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 Residential 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 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)

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

(Ord. 3421 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)

Designated sections of the 2025 California Residential Code are amended to read as set forth in §§ 15.07.050 through 15.07.070 and 15.07.090.

(Ord. 3421 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)

The blank spaces of Table R301.2 are filled in with the following data:

Ground snow load: Zero

Wind design speed: 95

Topographic effects: YES (Sierra Del Oro)

Special wind region: NO

Windborne debris zone: NO

Seismic design category: D2 or E

Weathering: Negligible

Frost line depth: 12 inches

Termite damage: Very heavy

Ice barrier underlayment required: NO

Flood hazards:

Corona Municipal Code Title 18, Floodplain Management, adopted 1978

Current flood insurance study for Riverside County and Incorporated Areas, 2024

Air freezing index: Zero

Mean annual temp: 63.4

(Ord. 3421 § 5 (part), 2025.)

Section R308.1 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 Prevention Standard for 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 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)

Section R902.1 is amended by adding the following subsection R902.l.3 to read as follows:

"R902.1.3 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 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)

"Chapter 44 - Referenced Standards is adopted in its entirety with the following amendments:

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:

Section 7.3 Pressure Gauges is amended to add the following Subsection 7.3.4 to read as follows:

Section 7.6 Alarms is hereby amended its entirety 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 serving normally operated appliances in the residence.

Exception:

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 water flow switch activation."

(Ord. 3421 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)

The violation and penalties for Chapter 15.07 shall be as adopted in Chapter 15.02 and 15.70 of the Corona Municipal Code.

(Ord. 3421 § 5 (part), 2025; Ord. 3357 § 5 (part), 2022; Ord. 3306 § 6 (part), 2019; Ord. 3251 § 5 (part), 2016; Ord. 3159 § 5 (part), 2013; Ord. 3059 § 5 (part), 2010.)