Butte County — Design Review

Last reviewed: July 6, 2026

Overview

In unincorporated areas of Butte County, there is no single, countywide “Design Review” permit or design review board. Instead, the Zoning Ordinance (Butte County Code Chapter 24) embeds design review through specific overlay zones, special purpose zones, and permit findings tied to site and architectural standards. For most projects, design considerations are evaluated within the applicable permit—e.g., Minor Use Permits, Administrative Permits, or project-specific plans—rather than as a standalone process (§ 24-189; ).

Plain-English: In unincorporated areas, “design review” happens when your project triggers an overlay or zone that has design standards or findings. There isn’t a separate countywide design review permit—design is reviewed within the permit you already need (§ 24-189; ).

How design review works in practice (unincorporated areas)

• Scenic corridors: The -SH (Scenic Highway) Overlay requires a Minor Use Permit for most development, with specific design findings on architecture, views, and streetscape. Some small projects (e.g., a single-family home) are exempt from the Minor Use Permit; fences/walls may proceed via an Administrative Permit (§ 24-42(C), (E), (F); ).
• Employment campuses: The RBP (Research & Business Park) zone has binding site and architectural design standards and requires a Master Development Plan; subsequent Administrative Permits must verify design approval by the property owners’ association or other entity established by the plan (§ 24-31(A), (B)(10)(b); ).
• Planned Development projects: The PD zone requires a Development Plan that includes project-specific design guidelines (materials, landscaping, fences/walls/screening, open spaces), adopted by ordinance and used to review later phases (§ 24-32(D)(7)(e), (H)–(I); ).
• Airport areas: The -AC (Airport Compatibility) Overlay requires consistency with the Airport Land Use Compatibility Plan and may require ALUC review; these compatibility constraints often drive site layout, height, and lighting design (§ 24-34(A)–(D); ).
• Countywide functional “design” standards: Telecommunications facilities must be architecturally compatible and use stealth/neutral design where applicable (§ 24-181(A)(4)(c)–(d); ). Outdoor lighting has purpose-built standards to reduce glare and light trespass (§ 24-62; ).

You’ll also need to integrate related requirements for parking, landscaping and screening, signage, and other development standards into submittals and plan sets.

District-by-district design review touchpoints (unincorporated areas)

RBP — Research & Business Park (Special Purpose)

• Purpose and where it applies: Campus-style, high-quality commercial and light industrial development; used for master-planned employment centers (§ 24-31; ).
• What gets reviewed: Site design (viewshed sensitivity, parking behind buildings or visually screened, employee plazas/courtyards) and architectural massing and materials (avoid monolithic walls; articulate facades; orient entrances to streets) (§ 24-31(A)(1)–(3); ).
• Permits/process: Master Development Plan reviewed by the Planning Commission; later phase Administrative Permits by the Zoning Administrator, who must confirm design approval by the property owners’ association/established entity (§ 24-31(B)(5)–(8), (10)(b); ).
• Key dimensional standards: The RBP zone sets 50 ft front/street-side setbacks, 25 ft interior side/rear setbacks, and 60 ft max height (Table 24-30-2; § 24-30; ).
• Typical permitted uses: Commercial and light industrial in a campus-like environment (intent finding) (§ 24-31(B)(6)(e); ).

-SH — Scenic Highway Overlay

• Purpose and where it applies: Preserves scenic quality for lands within 350 feet of designated scenic highway rights-of-way (§ 24-42(A), (B); ).
• What gets reviewed: Architecture must complement scenic qualities; projects must maintain views of scenic resources; utilities underground; limits on sign types; high-quality fence/wall design (§ 24-42(E)–(F); ).
• Permits/process: Minor Use Permit for most development; small exceptions for single-family homes, their accessory structures, small parking facilities, and demolitions; walls/fences via Administrative Permit (§ 24-42(C); ).
• Uses: Same as base zone, subject to overlay standards (§ 24-42(D); ).

PD — Planned Development Zone

• Purpose and where it applies: Enables customized standards and design guidelines for integrated projects (min. 3 acres) adopted by ordinance (§ 24-32(B), (H); ).
• What gets reviewed: A Development Plan that sets the project’s land uses, circulation, and detailed design guidelines on landscaping, building materials, fences/walls/screening, and open space (§ 24-32(D)(7)(a)–(e); ).
• Permits/process: Planning Commission recommends; Board of Supervisors adopts the PD zone and Development Plan upon making required findings; later changes processed under § 24-246 (§ 24-32(E)–(G), (J); ).
• Uses/dimensions: Set by the adopted Development Plan; verify at entitlement (§ 24-32(I); ).

-AC — Airport Compatibility Overlay

• Purpose and where it applies: Airport Influence Areas in the ALUCP; imposes compatibility criteria affecting siting, height, lighting, and land-use intensity (§ 24-34(A)–(C); ).
• What gets reviewed: Consistency with the ALUCP; certain actions must be referred to the Airport Land Use Commission (e.g., General Plan/Specific Plan/Zoning amendments) (§ 24-34(D); ).
• Uses/dimensions: Governed by base zone plus ALUCP constraints; verify with the ALUC when applicable (§ 24-34; ).

-BCC — Butte Creek Canyon Overlay

• Purpose and where it applies: Butte Creek Canyon area; imposes additional hearings/noticing and hillside/ridgeline protections (Code § number: Not found in retrieved materials).
• What gets reviewed: Email noticing in addition to standard mailed notice; hillside development only where <15% slopes aren’t available; clustered development prohibited; ridgeline setbacks with site review to determine exact ridgeline location (Code § number(s): Not found in retrieved materials; ).
• Uses/dimensions: Same as base zone with additional overlay standards (Code § number(s): Not found in retrieved materials; ).
• Note: Verify with the jurisdiction for the exact § references and mapped overlay limits .

AIR — Airport (Special Purpose) [design-relevant standards]

• Purpose and where it applies: Areas zoned for airport-related uses; includes standards intended to manage airport compatibility (Code § number(s): Not fully retrieved).
• What gets reviewed: Performance and building standards include limiting indoor noise to 45 dB during aircraft operation; setbacks/height from Table 24-30-2 (front/street-side 50 ft, interior side/rear 25 ft, height 35 ft) (Table 24-30-2 and Additional AIR Standards; § 24-30; ).
• Uses: Verify with the jurisdiction (Code § number(s): Not found in retrieved materials).

Decision-relevant standards and permits (unincorporated areas)

Also expect your submittal package to cover parking, landscaping and screening, and signage, which are frequently reviewed for visual and functional compatibility alongside design standards.

Process pointers you’ll actually use

• Which permit applies? See the County’s roles matrix; there is no separate countywide “Design Review” permit line item—design is evaluated within discretionary permits and plan approvals (§ 24-189; ).
• How to apply: Applications follow the general filing and completeness rules in Article V, Division 1 (pre-application encouraged; completeness review; agency referrals) (§ 24-190 to § 24-193; ).
• Use permit findings: When a Minor or Conditional Use Permit is required, the County must make compatibility and consistency findings—these frequently encompass architecture, site layout, and neighborhood fit (§ 24-220 to § 24-224; ).
• Changes later: Post-approval modifications track the “changes to an approved project” section, often cited in RBP/PD processes (§ 24-246 referenced in § 24-31(B)(8), § 24-32(J); ).
• Building code is separate: Construction standards under the California Building Standards Code are outside zoning design review; different approvals and reviewers apply.

Checklist

• Confirm the site is in unincorporated Butte County and identify all overlays/zones on the parcel (Overlay Districts).
• If within the -SH overlay, prepare a Minor Use Permit package that demonstrates architectural compatibility and preserved views (§ 24-42(E)–(F); ).
• If zoned RBP, prepare a Master Development Plan or ensure consistency with an adopted one; coordinate property owners’ association design approval for Administrative Permits (§ 24-31(A), (B)(10)(b); ).
• If seeking PD rezoning, draft Development Plan design guidelines (materials, landscaping, fences/walls/screening) (§ 24-32(D)(7)(e); ).
• In -AC overlay areas, document ALUCP compatibility and any required ALUC referrals (§ 24-34(D); ).
• Address countywide design standards that often come up: telecom stealthing/compatibility and outdoor lighting controls (§ 24-181; § 24-62; ).
• Integrate parking, landscaping, and signage standards into your site plan and elevations.
• Prepare findings support for any discretionary permit required (§ 24-220 to § 24-224; ).

Risks & Ambiguities

Plain-English Summary

If you’re building in unincorporated Butte County, “design review” usually isn’t a separate permit; it’s baked into the permits your project already needs. Scenic corridors (-SH), employment campuses (RBP), and planned developments (PD) have the clearest, formal design standards and findings, and airport areas (-AC) add compatibility rules that often change site and building design. Plan sets that address development standards, parking, landscaping, and signage up front will make the design review portion of your permit smoother.

Source References

• § 24-189 (Review and Decision-Making Authority; permit types matrix)
• § 24-190 to § 24-193 (Permit application filing, completeness, referrals, staff reports)
• § 24-220 to § 24-224 (Conditional/Minor Use Permit procedures and findings)
• § 24-30 (Development Standards; Table 24-30-2 for PB, AIR, RBP)
• § 24-31 (RBP zone design standards; Master Development Plan and Admin Permit steps)
• § 24-32 (PD zone; Development Plan content with design guidelines; adoption/effect)
• § 24-34 (Airport Compatibility Overlay; ALUCP consistency and ALUC review)
• § 24-42 (Scenic Highway Overlay; permits, standards, and findings)
• § 24-62 (Outdoor Lighting, purpose/applicability)
• § 24-181 (Telecommunications facilities—setbacks and aesthetics)
• -BCC Overlay content (additional noticing, hillside/ridgeline standards): Code § number(s) not found in retrieved materials; see retrieved overlay text
• See also: Butte County zoning & planning overview, Butte County Zoning, Butte County Land Use, Butte County Overlay Districts, California Building Standards Code, Butte County Historic Preservation

Retrieved passages

• Butte County Zoning Code (§ 1) Medium relevance show source text
• Butte County Zoning Code (Article V) Medium relevance show source text
• Butte County Zoning Code (Article III) Medium relevance show source text
• CBC § 1 (section 24-61.1.E.) Medium relevance show source text
• CBC § 66323 (chapter shall) Medium relevance show source text
• Butte County Zoning Code (Section 65450) Medium relevance show source text
• Butte County Zoning Code (Section 24-30) Medium relevance show source text
• Butte County Zoning Code (Chapter 20) Medium relevance show source text

Cited sections

• § 24-189 (Review and Decision-Making Authority; permit types matrix) (§ 24-189)
• § 24-190 to § 24-193 (Permit application filing, completeness, referrals, staff reports) (§ 24-190)
• § 24-220 to § 24-224 (Conditional/Minor Use Permit procedures and findings) (§ 24-220)
• § 24-30 (Development Standards; Table 24-30-2 for PB, AIR, RBP) (§ 24-30)
• § 24-31 (RBP zone design standards; Master Development Plan and Admin Permit steps) (§ 24-31)
• § 24-32 (PD zone; Development Plan content with design guidelines; adoption/effect) (§ 24-32)
• § 24-34 (Airport Compatibility Overlay; ALUCP consistency and ALUC review) (§ 24-34)
• § 24-42 (Scenic Highway Overlay; permits, standards, and findings) (§ 24-42)
• § 24-62 (Outdoor Lighting, purpose/applicability) (§ 24-62)
• § 24-181 (Telecommunications facilities—setbacks and aesthetics) (§ 24-181)
• -BCC Overlay content (additional noticing, hillside/ridgeline standards): Code § number(s) not found in retrieved materials; see retrieved overlay text (§ number)
• See also: Butte County zoning & planning overview, Butte County Zoning, Butte County Land Use, Butte County Overlay Districts, California Building Standards Code, Butte County Historic Preservation
• ButteCounty_ZoningCode.md

• Official Butte County code library