Planning Commission adopts zoning updates to align San Luis Obispo code with recent state ADU and urban-lot-split laws

The San Luis Obispo City Planning Commission on Feb. 12 voted unanimously to adopt a draft resolution recommending that the City Council introduce and adopt ordinance amendments to Titles 16 (subdivisions) and 17 (zoning). The amendments are intended to align the municipal code with recent state legislation on accessory dwelling units (ADUs), junior ADUs (JADUs), and urban lot splits, to address corrections identified by the California Department of Housing and Community Development (HCD), and to clarify several local procedures.

The draft ordinance, introduced at the public hearing by Principal Planner Teresa McClish, was presented by Assistant Planner Ethan Estrada and David Amini, housing coordinator for Community Development Department (CDD). McClish said the update “presents an opportunity to address some of the recent and extensive state legislation pertaining to housing and to help ensure a municipal code is consistent with state law and address some other needed zoning clarifications.” Staff recommended the commission adopt the draft resolution with staff modifications and the additional revisions provided in agenda correspondence.

Why it matters

The amendments respond to multiple recent state bills and an HCD letter that flagged inconsistencies between state ADU law and San Luis Obispo’s zoning rules. Staff noted HCD sent a letter identifying 13 potential inconsistencies and that over 100 California cities received similar notices. The revisions are intended to reduce local barriers to ADU production, clarify municipal procedures, and incorporate new state rules for urban lot splits enacted by a series of bills including SB 9, SB 450, SB 684, SB 1123 and changes consolidated under SB 477 and SB 1211.

Key provisions and requirements

- ADU/JADU compliance and streamlining: Staff proposed many changes to either reference state ADU law generally or to cite…