107A.10 Building numbers and fees.
San Francisco Building Inspection Commission Codes · 2022 edition · ingested 2026-07-08 · San Francisco
107A.10 Building numbers and fees. Every person shall obtain an official street number assignment at the time the person files a permit application or establishes a new parcel and shall place the numbers so assigned on the building in such a position that the number is easily visible to approaching emergency vehicles. The numerals shall not be less than 4 inches (101.6 mm) in height with a minimum stroke width of 1/2 inch (12.7 mm)
[Reference California Residential Code Section R319.1] and shall be a contrasting color to the background. All numbers must be made of substantial and permanent material and must be so affixed as not to be easily effaced or removed. Any additional or changed numbers assigned to a building shall be subject to the provisions of this section. See Section 110A, Table 1A-J – Miscellaneous Fees – for applicable fee.