San Luis Obispo County — Historic Preservation

Last reviewed: July 6, 2026

Overview

In unincorporated areas of San Luis Obispo County, historic preservation is implemented through the Land Use Ordinance (Title 22), primarily via the Historic Site (H) combining designation. When a parcel or area carries the H designation, proposed uses, alterations, and land divisions face added review to protect identified historic structures, landmarks, districts, and archaeological resources (§ 22.14.080) . Title 22 governs only outside the Coastal Zone; parcels in the Coastal Zone follow Title 23, not Title 22 (§ 22.01.050; § 22.14.090) .

Key rule in plain English: If your site in unincorporated areas is mapped with the County’s Historic (H) overlay, you will generally need a County permit before building new, altering, moving, or demolishing a historic resource, and you must show the work won’t harm the resource’s character (§ 22.14.080) .

The H overlay appears on the County’s Official Land Use Maps as part of its overlay districts, incorporated by reference into Title 22 (§ 22.01.030.A.2) .

Where Historic Preservation Lives in Title 22 (Inland)

• Countywide policy basis: Title 22’s purpose includes protecting historic and archaeological resources (§ 22.01.010.D) .
• Official mapping and combining designations control applicability (§ 22.01.030.A; § 22.01.050) .
• The Historic Site (H) combining designation sets the protection standards (§ 22.14.080) .
• Planning Area chapters add site- and area-specific rules (e.g., San Luis Obispo Planning Area and specific historic sites) that override general rules where they conflict (§ 22.90.020.A–C; § 22.96.020.B) .

The Historic Site (H) Combining Designation — Countywide Standards

The H overlay applies where the Land Use Element identifies local, state, or national historic or archaeological resources. Its purpose is to ensure new uses and alterations consider and protect those resources (§ 22.14.080.A) .

• Permit triggers and process:

  • A Minor Use Permit is required for all new structures and uses within H, and for modifications to existing historic structures (including restoration, alteration that changes character, demolition, or relocation), except minor alterations that do not materially change the historic character (§ 22.14.080.C.1) .
  • Applications must describe protective measures for the identified historic resource, and the initial study evaluates effects on visual character and on archaeological or historic resources (§ 22.14.080.C.2–3) .
  • Approval requires specific findings. For archaeological resources, the County must find resources are protected or that construction methods protect site integrity. For historic structures/landmarks/districts, the County must find that new work will not obstruct public views, will not damage significant features, and that any remodeling or demolition is unavoidable if retention is not structurally or economically feasible (§ 22.14.080.C.4) .

• Land divisions around a historic structure:

  • The minimum parcel size for a parcel with an established historic structure in H is set by Conditional Use Permit (§ 22.14.080.B) .
  • If the parcel would be smaller than the base minimum for its land use category, then: residential use is prohibited on that parcel; it may only be transferred to a 501(c)(3) non-profit or public agency; and a recorded declaration must prohibit residential use and constrain future transfers. Findings must show the division won’t adversely affect the area and supports restoration or continuation of the historic structure (§ 22.14.080.B.2–5) .

• Relationship to other County rules:

  • Where planning area standards impose additional or different requirements for sites within H, those standards control (§ 22.90.020.A) .
  • Title 22 does not itself create public access on H-designated properties; designations do not imply public use rights (§ 22.01.040.B; § 22.90.020.C) .
  • State “urban dwelling” projects (SB 9) are ineligible on sites in a historic district, in the State Historic Resources Inventory, or listed as County landmarks or historic properties (§ 22.30.471.C.1.i) .

Planning Area Overlays and Site-Specific Historic Standards

Planning Area chapters tailor how H applies in specific places. These apply in addition to countywide H rules.

San Luis Obispo Planning Area — Historic Area (H)

• Scope narrowing for permit triggers: Within the San Luis Obispo Sub-area, the Minor Use Permit requirement from § 22.14.080 applies only to the specific historic structures listed in the Area Plan (Chapter 6) and to an area within 200 feet of those structures. Routine maintenance, repairs, and vegetation removal outside that 200-foot radius are not subject to the H permit requirement (§ 22.96.020.B.1) .
• Octagon Barn site: After the barn is restored for public safety and preservation, the County may approve sale of agricultural products at the site as a roadside stand with Countywide-grown products, and may create a smaller-than-standard “public lot” for ownership transfer to an approved non-profit (§ 22.96.020.B.2.a–b) .

Typical permitted uses: The base land use category still controls permitted uses; H adds review and findings, not a new use list. Dimensional standards remain per the base category unless modified by planning area standards; here, visual protection and proximity-based triggers are the primary constraints (§ 22.96.020.B; § 22.14.080.C.4) .

South County Area — Dana Adobe (Historic Area H)

• Dana Adobe: Development of tourist-related facilities, residential, or accessory uses at the Dana Adobe site must be consistent with § 22.108.040.F, as referenced by the South County planning standards. This directs site-specific protection measures for that historic resource (planning standard reference) .
• Where it applies: The standard applies to the mapped Dana Adobe site shown in the planning figure (Figure 98-5) (planning standard reference) .
• Key controls: Consistency with the cross-referenced section and the general H findings in § 22.14.080 still applies (planning standard reference; § 22.14.080) .
• Code note: The full text of § 22.108.040.F was not included in the retrieved materials; verify with the jurisdiction.

Pozo Village Area — Pozo Saloon (Historic Area H)

• Pozo Saloon: Conditional Use Permit approval is required for all uses within the H combining designation affecting the Pozo Saloon; new or expanded uses/structures must enhance the Saloon’s historic character and setting as determined by the County (planning standard reference) .
• Typical permitted uses/dimensions: Uses follow the underlying land use categories, but the CUP requirement means all projects must prove compatibility with the historic setting; dimensional controls per base category unless conditioned for historic compatibility (planning standard reference) .
• Code note: The precise section number for the Pozo Saloon planning standard was not included in the retrieved materials.

Decision-Relevant Standards (Summary)

Practical Tips and Interactions

• Check mapping first: Confirm if your parcel carries the H overlay on the Official Land Use Maps before filing for any zoning clearance (§ 22.01.030.A.2) .
• Expect added findings: Even if a use is otherwise allowed by your land use category, H imposes separate findings on views and character (§ 22.14.080.C.4) . Coordinate early with design review staff if applicable.
• Area-specific carve-outs: In the SLO Sub-area, the 200-foot rule narrows when an MUP is needed (§ 22.96.020.B.1) .
• Demolition bar is high: Be ready with structural/economic evidence if proposing demolition of historic elements (§ 22.14.080.C.4.b) .
• Land division trade-offs: Creating a smaller “historic parcel” means no residential use on that parcel, IRS 501(c)(3)/public transfer only, and recorded restrictions (§ 22.14.080.B) .
• Related rules you might trigger: Changes of use or occupancy can pull in development standards, parking, signage, and landscaping and screening requirements; the H overlay adds a preservation lens on top of those.
• Not the building code: Construction methods and safety remain under the California Building Standards Code; historic review under Title 22 is separate.

Checklist

• Verify your site is in unincorporated San Luis Obispo County and not in the Coastal Zone (Title 23 governs Coastal) (§ 22.01.050; § 22.14.090)
• Confirm whether the parcel has the Historic (H) combining designation on the Official Maps (§ 22.01.030.A.2)
• If in H, scope whether you are within a Planning Area with special standards (e.g., SLO Sub-area 200-foot trigger; Octagon Barn; Dana Adobe; Pozo Saloon) (§ 22.96.020.B; planning references)
• Prepare application materials: protective measures narrative and any required visual analysis (§ 22.14.080.C.2–3)
• Address the approval findings (views, character, feasibility of retention; or archaeological protection) (§ 22.14.080.C.4)
• For subdivisions around historic structures, line up CUP, non-profit/public transfer documentation, IRS 501(c)(3) letter, and the declaration of restrictions (§ 22.14.080.B.2–5)
• If considering SB 9, confirm the site is not a listed historic resource or district (§ 22.30.471.C.1.i)
• If your project cannot meet objective standards, assess relief options under variances and exceptions (verify eligibility).

Risks & Ambiguities

Plain-English Summary

If your unincorporated San Luis Obispo County property is mapped with the County’s Historic (H) overlay, you’ll generally need a Minor Use Permit to build new, alter, move, or demolish historic resources, and you must prove the work won’t block views or damage significant features. Special planning area rules can narrow or tighten what’s required (like the 200-foot rule near listed sites in the SLO Sub-area), and if you try to carve out a small “historic parcel,” you’ll have deed restrictions and non-profit/public ownership limits. Inland rules are in Title 22; coastal parcels follow Title 23.

Source References

• Title 22 purpose and protection of historic resources: § 22.01.010.D
• Applicability and Coastal Zone carve-out: § 22.01.050; § 22.14.090
• Official maps and combining designations included by reference: § 22.01.030.A.2
• Historic Site (H) combining designation — purpose, permits, findings, land division provisions: § 22.14.080 (including subsections A, B, C)
• Planning area standards prevail on conflicts: § 22.90.020.A–C
• San Luis Obispo Planning Area — Historic Area (H): 200-foot scope limit; Octagon Barn standards: § 22.96.020.B.1–2
• South County — Dana Adobe reference to § 22.108.040.F (planning area standard): Historic Area (H) — Dana Adobe (reference)
• Pozo Village — Pozo Saloon Historic (H) standard (planning area standard): Historic (H) combining designation — Pozo Saloon (reference)
• SB 9 urban dwellings ineligible on historic resources: § 22.30.471.C.1.i

Retrieved passages

• San Luis Obispo County Zoning Code (Chapter 22.22) High relevance show source text
• San Luis Obispo County Zoning Code (section 501) High relevance show source text
• San Luis Obispo County Zoning Code (Title do) Medium relevance show source text
• San Luis Obispo County Zoning Code (Section 22.06.060c) Medium relevance show source text
• San Luis Obispo County Zoning Code (Chapter 22.96) Medium relevance show source text
• San Luis Obispo County Zoning Code (Chapter 7) Medium relevance show source text
• San Luis Obispo County Zoning Code (Title apply) Medium relevance show source text
• San Luis Obispo County Zoning Code (Title 22) Medium relevance show source text

Cited sections

• Title 22 purpose and protection of historic resources: § 22.01.010.D (Title 22)
• Applicability and Coastal Zone carve-out: § 22.01.050; § 22.14.090 (§ 22.01.050)
• Official maps and combining designations included by reference: § 22.01.030.A.2 (§ 22.01.030.A.2)
• Historic Site (H) combining designation — purpose, permits, findings, land division provisions: § 22.14.080 (including subsections A, B, C) (§ 22.14.080)
• Planning area standards prevail on conflicts: § 22.90.020.A–C (§ 22.90.020.A)
• San Luis Obispo Planning Area — Historic Area (H): 200-foot scope limit; Octagon Barn standards: § 22.96.020.B.1–2 (§ 22.96.020.B.1)
• South County — Dana Adobe reference to § 22.108.040.F (planning area standard): Historic Area (H) — Dana Adobe (reference) (§ 22.108.040.F)
• Pozo Village — Pozo Saloon Historic (H) standard (planning area standard): Historic (H) combining designation — Pozo Saloon (reference)
• SB 9 urban dwellings ineligible on historic resources: § 22.30.471.C.1.i (§ 22.30.471.C.1.i)
• SanLuisObispoCounty_ZoningCode.md

• Official San Luis Obispo County code library