Skip to content

Division C — Signing and Building Numbering.

Sec. 13-46. - Addresses for buildings.

Sonoma County Municipal Code · 2026-09 edition · updated 2026-09-27 · Sonoma County

All buildings shall be identified by an address issued by the director of permit and resource management. when issuing addresses, the director of permit and resource management shall use the following standards:

(a)

Addresses shall be compatible with addresses in cities and other counties where appropriate.

(b)

Addresses shall be assigned to reflect the road from which the primary driveway originates.

(c)

Addresses shall be issued in sequential order and have even numbers on one side of the road and odd on the other. In general, the even numbers shall be on the north and east sides of roads and/or on the right when facing in the direction of increasing magnitude. Existing addresses for roads requiring a road name change that do not conform to the provisions of this subsection may be accepted if the sequence is in logical order and the addresses are approved by the director of permit and resource management and the county fire warden/fire marshal.

(d)

All buildings other than accessory buildings shall be assigned separate addresses. Individual units within residential and commercial buildings may be assigned subsidiary numbers or letters (e.g., apartment 10; suite A). Where possible individual units in multiple story buildings shall be assigned numbering sequences that identify the floor by the leading digit(s).

(e)

Any other standards adopted by resolution or ordinance of the board of supervisors or by administrative regulation of the director of permit and resource management.

(Ord. No. 6318, § I, 8-11-2020)

State Law reference— California Code of Regulations, Title 14 Natural Resources Code, Division 1.5, Chapter 7, Subchapter 2, Article 1-5, SRA Fire Safe Regulations, 1274.03.

Get a plain-English answer with a citation back to this text.

Ask AI about this code
▸Contents — Sonoma County Municipal Code

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.