What We Do

The Department of Planning and Building provides oversight of the unincorporated areas of San Luis Obispo County. Planning and Building performs all land use planning functions to maintain the wise use of land and to help build safe communities including policies, programs, permitting, environmental review and zoning enforcement. 

Department News

2/15/2024

3C-REN Celebrates Successful 2023 with over $800,000 in Energy-Saving Incentives Serving over 500 Homes in the Tri-County Region

3C-REN Celebrates Successful 2023 with over $800,000 in Energy-Saving Incentives Serving over 500 Homes in the Tri-County Region.

Landscape photograph of sun setting behind clouds over rolling green hills with shrubs and bushes in the foreground
1/8/2024

Cannabis Clean-up Ordinance Amendment

On September 26, 2023, the County Board of Supervisors directed staff to prepare a Cannabis Clean-up Ordinance Amendment. The Public Review Draft of the Cannabis Clean-up Ordinance Amendment is now available for review.

Picture of Santa Maria Refinery
3/22/2024

Phillips 66 Santa Maria Refinery Demolition and Remediation Project Draft Environmental Impact Report

On August 15, 2022, Phillips 66 Company (Phillips 66) applied to the County of San Luis Obispo for approval of a Development Plan and Coastal Development Permit (DP/CDP) to demolish the Santa Maria Refinery (SMR) facility and restore the site located at 2555 Willow Road in Arroyo Grande, California.

Sunny view of Los Osos from nearby hill top looking out over the bay. The bushy hilltop is in the foreground, the town of Los Osos in the middle ground, and Morro Bay and beyond in the background.
5/20/2022

Permitting Requirements and Allowed Development in Los Osos

The County Planning and Building Department has released a memorandum clarifying permitting requirements and allowed development in Los Osos in response to recent correspondence from California Coastal Commission staff.