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Earlier editions: 2026-09

Title 9 — BUILDING REGULATIONS

San Anselmo Municipal Code Ch. 5 Numbering of Buildings

San Anselmo Municipal Code · 2026-10 edition · updated 2026-10-04 · San Anselmo

Cite as: San Anselmo Municipal Code Chapter 5 · Text as of 2026-10-04

9-5.01 - Building defined.

For the purposes of this chapter, "building" shall mean and include any structure used, or intended to be used, for human occupancy or for business purposes, but shall not include any private garage or any accessory structure used in connection with a building which is properly numbered.

(§ 1, Ord. 1059, eff. December 27, 2007)

Exceptions & meaning →

9-5.02 - Numbering system adopted.

(a) The numbering of buildings in the Town shall be in accordance with the official Town streets map on file in the Planning and Building Department which is hereby declared as the official numbering of such buildings.

(b) The numbering of buildings on any street shall be in sequential order as determined by the Director of Planning and Building.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

9-5.03 - Building numbers to be visible from the street.

Every building or occupancy in the Town shall be numbered by placing the appropriate number on or adjacent to the main entrance to such building or occupancy so as to be readily seen from the street upon which such building is situated. Residential numbers shall be self-illuminated or placed adjacent to a light which is controlled by a photocell and switched only by a breaker so it will remain illuminated all night.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

9-5.04 - Notification to owners to number buildings.

Whenever it shall come to the attention of the Director of Planning and Building that any building or occupancy is not numbered as required by this chapter, he shall notify in writing the owner, agent, or occupant of such building of the appropriate number and require such building to be so numbered. Failure on the part of the owner, agent, or occupant to cause such building to be so numbered within fourteen (14) calendar days after receiving such notice shall be deemed a violation of this chapter.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

9-5.05 - New building numbers.

Numbers for new buildings shall be assigned by the Director of Planning and Building. Numbers shall be affixed to the building immediately upon completion. Temporary numbers must be posted during construction.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

9-5.06 - Size and placement of numbers.

(a) All main entrances from streets to buildings, or to separate apartments in buildings, shall be numbered. It shall be unlawful for any person, whether as owner or occupant of any building or apartment, to place, maintain, or allow to remain thereon any number other than the one (1) assigned by the Department of Planning and Building.

(b) Building numbers shall be a color that clearly contrasts with the color of the background upon which they are placed. Residential building numbers shall be not less than four (4″) inches in height and non-residential /commercial building numbers shall be not less than six (6″) inches in height and shall conform to the requirements of Title 10, Chapter 9. All numbers shall be of proportionate width to the height, shall be made of permanent material, and shall be placed in a manner as to not be easily defaced or removed.

Address numbers must be Arabic numerals or alphabetical letters with a minimum stroke width of one-half (.5″) inch. Numbers on residential buildings shall be internally-illuminated or placed adjacent to a light which is controlled by a photocell and switched only by a breaker so it will remain illuminated all night.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

9-5.07 - Renumbering streets.

The Director of Planning and Building is authorized to renumber all or portions of streets when necessary to prevent confusion in locating the buildings thereon.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

9-5.08 - Notices to change numbers.

Whenever the owner, agent, or occupant of any property has been notified to change the number of his building, the old number may be temporarily retained in addition to the new number provided, however, in no case shall such old number be retained for a period longer than thirty (30) calendar days after the official notice to change the number.

(§ 1, Ord. 1059, eff. December 27, 2007)

(Ord. No. 1077, 9-23-2010)

Exceptions & meaning →

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