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San Luis Obispo County, CA Building Safety: Building Inspections (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Preliminary inspection
Authorized before permit issuance, Sec. 105.9
Inspection card
Must be posted on-site until project completes
R-3 certificate of occupancy
Signed Final Inspection entry serves as the certificate
Other occupancies
Separate certificate of occupancy required before use
Citation
Sec. 19.02.020(v),(x),(y),(z)

Summary

San Luis Obispo County requires the building official to examine a site before issuing a permit, and to sign off on a final inspection before the structure may be used. Section 19.02.020 amends CBC/CRC Sections 105.7, 105.9, and R110.1 to set the preliminary-inspection, permit-card, and final-inspection rules the Department of Planning and Building enforces countywide.

These county ordinances apply to unincorporated areas of San Luis Obispo County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

105.7 Placement of construction permit. The approved plans, building permit and the building inspection record shall be made available whenever inspections are requested. The permit site inspection card shall be posted on the site of the work and prominently displayed until the completion of the project. ... 105.9 Preliminary inspection. Before issuing a permit, the building official is authorized to examine or cause to be examined buildings, structures and sites for which an application has been filed. ... R110.1 Inspection Card as Certificate of Occupancy. The signed and dated Final Inspection on the Inspection Record is hereby deemed the Certificate of Occupancy for R-3 structures and all R-3 accessory structures.

Full Breakdown

9 so the building official is authorized to examine, or have examined, buildings, structures, and sites for which a permit application has been filed before the permit issues, a preliminary inspection distinct from the inspections that occur during construction. 7 to require that the approved plans, the building permit, and the building inspection record be made available whenever an inspection is requested, and that the permit site inspection card be posted on the site and prominently displayed until the project is complete. 1 so the signed and dated Final Inspection entry on that same Inspection Record is deemed the certificate of occupancy; no separate certificate document is issued for R-3 structures or their accessory structures.

1 to bar use or occupancy, or any change in use, until the Chief Building Official issues a certificate of occupancy, except that certificates are not required for work that was exempt from a permit in the first place. Issuance of a certificate, like issuance of the underlying permit, is not an approval of any code violation; the building official can still require correction of errors discovered later, and can prevent occupancy of a structure found to be in violation.

Violations & Fines

Occupying or changing the use of a non-R-3 building before the Chief Building Official issues a certificate of occupancy violates Section 111.1 as amended, and the building official may prevent occupancy of any structure found in violation of the code or other county ordinances. Failing to post the permit site inspection card on the jobsite, or refusing to make the building permit and inspection record available when an inspector requests them, violates Section 105.7.

Frequently Asked Questions

What counts as the certificate of occupancy for a house in unincorporated SLO County?
For R-3 structures (single-family homes, duplexes) and their accessory buildings, the signed and dated Final Inspection entry on the Inspection Record is deemed the certificate of occupancy under Section 19.02.020(y), amending CRC Section R110.1. No separate certificate document is issued for those occupancy types.
Does the county inspect a site before it issues a building permit?
Yes. Section 19.02.020(x) amends Section 105.9 to authorize the building official to examine, or have examined, the buildings, structures, and site covered by a permit application before the permit is issued, in addition to the inspections that occur once construction begins.
Do I need to keep anything posted on the jobsite during construction?
Yes. Section 19.02.020(v), amending Section 105.7, requires the permit site inspection card to be posted on the site and prominently displayed until the project is finished, and the approved plans, permit, and inspection record must be available whenever an inspection is requested.

Sources & Official References

Other rules in San Luis Obispo County

All San Luis Obispo County rules

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