Kensington Accessory Dwelling Units (ADU's)

Contra Costa County has adopted a new ordinance covering the building of accessory dwelling units (ADU's) or second-units in accordance with a new State law governing such construction. The goal of the Sate law is to increase affordable housing. The law says that ADU's (meeting standards) must be approved ministerially without public input or review, while allowing local jurisdictions such as the County to regulate some building elements such as size.

Kensington is unique in the County in having its own planning ordinance which provides protection to views, light, privacy and size, among other factors, and strikes a balance between the rights of property owners and impacts to neighbors. Kensington residents steered the development of the ordinance, adopted in 2004.

The County's new ADU ordinance includes standards specific for Kensington in accordance with community characteristics underlying the planning ordinance, such as the average small lot size, high density, and hillside location.

For details on the new ADU ordinance and Kensington check:
UPDATE: The Board of Supervisors has a new draft AUD ordinance with proposed changes for Kensington, based on public input.  

Updated ADU Ordinance - Kensington information sheet

New Draft ADU ordinance Board Order.
 Discussed at the Board of Supervisors on August 15. Will go to the Planning Commission and back to the Board of Supervisors for approval over this fall. 

The KMAC will discuss the new draft at its August 29 meeting, 7 p.m. at the Kensington community center.

See: KMAC page.  

Input can also be made to Planning Director Aruna Bhat at