Local zoning · Shasta County

Shasta County — Zoning

Zoning under the Shasta County local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

This page summarizes how the Shasta County Zoning Plan (Title 17 — ZONING) regulates land use and development in the unincorporated areas of Shasta County. It explains the county’s principal zone districts and combining (overlay) districts, where to find the controlling standards, and the most decision-relevant numeric rules (setbacks, height, lot size, permitted uses) that an applicant must check. Title 17 is the controlling local ordinance for unincorporated Shasta County (§ 17.02.005 — Title) and the district listings are established in § 17.02.025.

(For a quick jurisdictional orientation, see the Shasta County zoning & planning overview. For how zoning ties to the General Plan and land use categories, see Shasta County Land Use.)

How to read this page

  • Every district named below is a Shasta County Title 17 district that applies only in unincorporated areas.
  • Each district entry lists the district purpose, typical permitted uses, key dimensional standards (where the ordinance gives them), and the section that controls that rule (shown as § number). Where a district-level standard or use could not be located in the retrieved ordinance excerpts, that gap is called out as "Not found in retrieved materials" and you should Verify with the jurisdiction.

For county-wide development rules (yards, height, accessory buildings, parking) consult the general chapters: § 17.84 (General Development Standards) and Chapter 17.88 (use-specific development rules). See Shasta County Development Standards and Shasta County Parking for related engineering and parking rules.

District-by-district breakdown

Note: The master list of principal and combining districts is established in § 17.02.025. Use that § to confirm which label appears on the county zone map for your parcel.

  • A-1 (Limited agricultural)

    • Purpose: Resource/agricultural uses at a limited scale (listed as a principal "Resource Zone District" in § 17.02.025).
    • Typical permitted uses: Agricultural production, farm buildings, limited dwellings where allowed by the General Plan. (Detailed allowed uses and numeric standards: Not found in retrieved materials — Verify with the county code/Planning.)
    • Key standards: Not found in retrieved materials (see § 17.02.025 for district existence).
    • Where it applies: Unincorporated agricultural areas as mapped by county zone maps (§ 17.02.030).

  • EA (Exclusive agricultural)

    • Purpose: Larger-scale agricultural lands requiring greater protection (listed in § 17.02.025).
    • Typical permitted uses: Commercial agriculture, accessory agricultural structures; detailed limits not found in the retrieved excerpts — Verify with the county.
    • Code: See § 17.02.025 for listing; district chapter not found in retrieved materials.

  • TP (Timber production) and TL (Timberland)

    • Purpose: Protect timber production lands; these are resource districts in § 17.02.025.
    • Typical uses: Timber management/harvest, limited accessory uses. Detailed site standards: Not found in retrieved materials — Verify with the county code.

  • MR (Mineral resource)

    • Purpose & uses: Mineral extraction and related processing (listed in § 17.02.025). Specific minimum lot sizes/use lists: Not found in retrieved materials — Verify with the county.

  • HP (Habitat protection)

    • Purpose: Protect lands with significant wildlife habitat values (§ 17.14.010).
    • Typical permitted uses: One-family residence (with limits), forest management, habitat enhancement projects, low-intensity recreation and some agriculture; accessory housing and one ADU allowed when a primary dwelling exists (§ 17.14.020).
    • Key dimensional standards: Yards generally 30 ft front/side/rear; main building height 35 ft; accessory building heights tiered by distance to property line as in § 17.14.060 (see that chapter for details).
    • Where it applies: Mapped habitat protection areas in unincorporated county.

  • OS (Open Space)

    • Purpose: Preserve greenbelts, buffers, riparian corridors (§ 17.16.010).
    • Typical permitted uses: Forest management, low-intensity recreation, agricultural uses (§ 17.16.020).
    • Key dimensional standards: Minimum lot area 20 acres (where mapped N‑O), yards 30 ft (front/side/rear), maximum main building height 35 ft and accessory height scales by distance (§ 17.16.060) — parking follows Chapter 17.86.
    • Where it applies: Mapped open space parcels in unincorporated territory.

  • NRA‑S (National Recreation Area — Shasta Unit) and NRA‑WI / NRA‑WII (Whiskeytown units)

    • Purpose: Tailored standards to protect recreation, scenic and natural values within the national recreation areas (§ 17.18.010).
    • Typical uses: Limited residential, recreation-supporting structures; industrial/commercial uses that damage recreation/scenic values are prohibited (§ 17.18.030).
    • Key standards: Lot minimums and special shoreline/roadside protections; residential yard/height standards (e.g., front 20 ft, side 5 ft/12 ft depending on side) and height limits 35 ft main, 20 ft accessory (§ 17.18.040).
    • Where it applies: Parcels inside the mapped NRA areas.

  • F‑1 (Designated Floodway)

    • Purpose: Resource/floodway district; FEMA flood studies are adopted into the code and govern flood hazard areas (§ 17.02.030.D). Confirm floodzone on county maps and FEMA FIRM.

  • Residential districts — R‑L, R‑R, R‑1, R‑M, R‑2, R‑3, MHP, IR, ER

    • The residential district list is set in § 17.02.025; several chapters are contained in Title 17:
      • R‑L (Limited Residential) — purpose and allowed uses are in § 17.24.010–.025; typical allowed uses include one-family residences, limited agricultural uses (lot size rules apply); yards generally 30 ft and height 35 ft (§ 17.24.010–.025).
      • R‑R (Rural Residential) — density/minimum lot area rules are parcel- and slope‑dependent; front/side/rear yards generally 30 ft and main building height 35 ft (§ 17.26.060).
      • R‑1 (One‑Family Residential) — purpose, permitted uses, and permit categories are in § 17.30.010–.040; permitted outright uses include one-family residences and one ADU when a primary dwelling exists (§ 17.30.020, § 17.88.132). Maximum height 35 ft is the default county limit in many residential districts (see § 17.84.030/district chapters).
      • R‑M (One‑Family Mobile Home) — permitted manufactured/mobile home and related uses in § 17.32.010–.040.
      • For R‑2, R‑3, MHP, IR, ER: district names are established in § 17.02.025; chapter-level specifics for each were Not found in retrieved materials — Verify with the county code.

  • Commercial districts — C‑1, C‑2, C‑O, C‑H, C‑R, C‑M, MU

    • These are listed as the county’s commercial zone types (§ 17.02.025). Typical hierarchy:
      • C‑1 local convenience, C‑2 community commercial, C‑H highway-oriented commercial, C‑O office commercial, C‑M commercial‑light industrial, C‑R recreation commercial, MU mixed use. Specific permitted uses, lot standards, and sign rules must be read in each chapter — Not found in retrieved materials for many of these specific chapters; consult the county code for each district.

  • Industrial districts — M‑L (Light industrial) and M (General industrial)

    • Purpose: Industrial/manufacturing uses; listed in § 17.02.025. Detailed permitted uses and site standards (setbacks, lot areas) not present in the retrieved excerpts — Verify with the county code.

  • Special districts — PF (Public Facility), PD (Planned Development), U (Unclassified)

    • PF: For public facilities; see § 17.02.025 for existence.
    • PD (Planned Development): PD districts operate only when a final/parcel map or use permit/final development plan becomes operative; PD procedural rules and development plan modification and revocation are in § 17.62.080–.100. PD can offer density bonuses and custom standards (§ 17.62.030 and § 17.62.080) — check the PD chapter for conditions.
    • U (Unclassified): Holding district applied where a precise principal zone has not been adopted; permitted uses include one‑family residence and certain resource uses and default to the standards of the district appropriate by General Plan designation (§ 17.64.010–.020).

  • Combining / overlay districts (listed to be combined with principal districts)

    • The combining districts (overlays) are explicitly established in § 17.02.025.C and include AP, B, F‑2, NRA‑S, NRA‑WI/WII, MRB, IMR, T, SH, SP, DR, ASP. Combining districts modify or layer additional standards on top of principal districts; the ordinance instructs that where conflicts occur the more stringent restriction controls (see combining-district chapters and § 17.02.025). For how overlays change project requirements, consult Shasta County Overlay Districts and the individual overlay section in Title 17.

Quick reference table — most decision‑relevant standards / uses

District Typical decision‑relevant rules (short) Code reference
R‑1 Permitted: one‑family residence, one ADU when a primary dwelling exists. Yards/permits: R‑1 chapters list zoning/admin/use permit triggers. § 17.30.020; ADU rules § 17.88.132.
R‑R Density and minimum lot area parcel-dependent (slope, water, sewage). Default yards 30 ft, main height 35 ft. § 17.26.060.
OS Minimum lot 20 acres (where N‑O), yards 30 ft, main height 35 ft; only low-intensity recreation/forest/ag uses without permit. § 17.16.020, § 17.16.060.
HP Habitat protection; residential density limits (often 1 du per mapped acreage); yards 30 ft, height 35 ft (see chapter). § 17.14.010–.060.
PD PD zoning becomes operative upon recordation of final map or final use/plan approval; PD amendments and revocation rules apply. § 17.62.080–.100.
U Holding district — default permitted uses include one-family dwellings; applies where no principal district assigned. § 17.64.010–.020.
Zone maps / flood hazard Zone maps maintained by Planning; FEMA flood studies incorporated by reference (FIS dated Dec 16, 2021 cited). § 17.02.030.D.

Checklist — what an applicant must satisfy (unincorporated Shasta County)

  • Locate your parcel on the county zone maps and confirm the principal and any combining districts (§ 17.02.030).
  • Confirm permitted uses for that district (check the district chapter — e.g., R‑1 § 17.30, OS § 17.16, HP § 17.14).
  • Confirm dimensional rules: minimum lot area, front/side/rear setbacks, maximum heights (general rules in § 17.84 and district-specific numbers where present).
  • Confirm parking requirements in Chapter 17.86 and on the Parking page (off‑street parking counts, ADA, tandem allowances for ADUs).
  • Determine whether your project needs a zoning permit (§ 17.92.060), administrative permit (§ 17.92.050), or use permit (§ 17.92.020) — many conditional uses and exceptions require these. Verify permit type for the listed use.
  • If your site is within an overlay (for example DR for design review), confirm any extra design standards or review board triggers (see Shasta County Design Review and Overlay Districts).
  • For an ADU: meet Title 17 ADU rules (size caps, setbacks, parking rules, and building/fire safety conditions in § 17.88.132 and related subsections). Also check California ADU law for state-mandated rules.
  • Check floodplain/FEMA map applicability and applicable floodway rules if in a special flood hazard area (§ 17.02.030.D, Chapters 17.22 & 17.70).

(Helpful links: Shasta County Development Standards, Shasta County Parking, Shasta County Design Review, and California Building Standards Code.)

Risks & Ambiguities

Issue Why it matters What to verify
Overlay / combining district restrictions Overlays can add or supersede principal district standards (e.g., DR, SH). You may think the principal district allows a use, but an overlay can add limits. Confirm all combining districts shown on the zone map for your parcel and read their chapters (§ 17.02.025.C) and any specific overlay chapter.
Parcel‑specific lot area / density rules Several districts (notably R‑R, HP, OS) use lot-area or slope-based density rules. Incorrect assumptions can cause an application denial. Verify the exact site chapter for the parcel (e.g., § 17.26.060 for R‑R; § 17.14.060 for HP).
ADU exceptions and local vs state law State ADU law creates limits; local Title 17 implements ADU standards but some exceptions may require administrative permits. Read local ADU sections (§ 17.88.132 and related ADU subsections) and compare to California ADU law. Use County ADU page and § 17.88.
Floodplain or FEMA mapping If the parcel falls inside incorporated FEMA hazard areas, additional floodproofing, setbacks, or prohibitions apply. Confirm FEMA flood map applicability and the county’s adopted FIS incorporated by reference (§ 17.02.030.D).
Unlisted district chapter details Title 17 lists many districts, but some district-specific chapters or numeric standards were not found in retrieved materials. For any district where you can't find the chapter text here, Verify with the Planning Department or read the full Title 17 on the county's official code.

Plain-English summary

Shasta County's zoning (Title 17) sets which uses are allowed on unincorporated parcels through named zones (for example R‑1, R‑R, OS, HP, PD, U) and overlay/combining districts; each district chapter gives permitted uses and rules like minimum lot size, setbacks, and heights, while county-wide rules (yards, accessory buildings, parking, ADUs) live in chapters such as 17.84 and 17.88. Always confirm the parcel’s zone on the county zone maps (§ 17.02.030), check the district chapter that applies, and look for any combining districts overlaying the parcel.

Source References

  • Title 17 — ZONING (Shasta County Code). Master table of districts and general provisions: § 17.02.005, § 17.02.020, § 17.02.025, § 17.02.030.
  • Open Space (OS) district: § 17.16.010–.060 (purpose, permitted uses, site standards).
  • Habitat Protection (HP) district: § 17.14.010–.060 (purpose, uses, yards, density limits).
  • One‑Family Residential (R‑1) district: § 17.30.010–.040 (permitted uses, permit triggers).
  • Rural Residential (R‑R) district: § 17.26.060 (density, lot sizes, yards).
  • One‑Family Mobile Home (R‑M) district: § 17.32.010–.040.
  • Planned Development (PD): operational and modification rules § 17.62.080–.100; density bonus references in § 17.62.030 (see PD chapter).
  • Unclassified (U) district: § 17.64.010–.025 (holding district rules and permitted uses).
  • ADU and residential accessory rules (size, setbacks, parking, exceptions): Chapter 17.88, especially § 17.88.132 (ADUs) and § 17.88.140 (residential accessory buildings).
  • General development standards (building sites, yards, accessory building rules): Chapter 17.84 (see § 17.84.010–.020 etc.).

Internal pages cited on this guide:

  • Shasta County zoning & planning overview (/us/california/shasta-county)
  • Shasta County Land Use (/us/california/shasta-county/land-use)
  • Shasta County Development Standards (/us/california/shasta-county/development-standards)
  • Shasta County Parking (/us/california/shasta-county/parking)
  • Shasta County Design Review (/us/california/shasta-county/design-review)
  • Shasta County Overlay Districts (/us/california/shasta-county/overlay-districts)
  • Shasta County ADU and accessory rules (referenced in Title 17, Chapter 17.88)
  • California Building Standards Code (Title 24) (/us/california/building-codes) — cited when building code compliance is referenced.

If you need a parcel‑specific reading of Title 17 (e.g., the exact minimum lot size that applies for your lot in R‑R) Verify with the jurisdiction (Planning/Resource Management) or request a zoning verification letter. Not all chapter-level specifics were present in the retrieved excerpts; where text was missing the page notes “Not found in retrieved materials.”

Sources

Retrieved passages

  • Shasta County Zoning Code (§ 24) High relevance
  • CBC § 5.01.020 (§ 5.01.020) High relevance
  • Shasta County Zoning Code (§ 73) High relevance
  • Shasta County Zoning Code (section 17.02.045) High relevance
  • Shasta County Zoning Code (Section 17.84.020) High relevance
  • Shasta County Zoning Code (§ 5.01.030) High relevance
  • Shasta County Zoning Code (§ 2) High relevance
  • CBC § 5.01.010 (Title 17) High relevance
  • CBC § 17.88.140 (Title 16) High relevance
  • CBC § 17.88.132 (Section 17.88.132) High relevance
  • Shasta County Zoning Code (§ 25) High relevance
  • Shasta County Zoning Code (§ 9) Medium relevance
  • Shasta County Zoning Code (chapter including) Medium relevance
  • Shasta County Zoning Code (§ 16) Medium relevance
  • Shasta County Zoning Code (§ 5.02.130) Medium relevance

Cited sections

Frequently asked questions

What can I build on an R-1 lot in Shasta County?

In unincorporated Shasta County an R‑1 lot primarily allows a one‑family residence, a certified mobile home on a foundation in lieu of a frame home, a second one‑family residence subject to § 17.88.135, supportive/transitional housing, one ADU when a primary dwelling exists, and small family day care or residential care facilities serving six or fewer residents (§ 17.30.020). Verify permit triggers for any nonstandard use (zoning/admin/use permit).

What are Shasta County setback requirements?

Setbacks depend on the district and are interpreted with county-wide yard rules. Many residential and resource districts default to 30 ft front/side/rear yards by chapter (for example OS, HP, many R districts cite 30 ft as default) and accessory buildings have their own rules (§ 17.84.020, district chapters such as § 17.16.060, § 17.14.060). Always read the district chapter for parcel-specific yards and Confirm applicable combining districts.

Do I need design review in Shasta County?

Design review is triggered when a parcel is in a DR combining district or when a district or specific plan requires it. Combining districts and the planning map identify when design review applies; the combining district list appears in § 17.02.025.C. Check the zone map to see if DR or another review-triggering overlay applies. See Shasta County Design Review for procedures.

Where is the county zoning map and how are zone boundaries amended?

The county maintains a series of zone maps and may use special zone maps to show districts in detail; the maps are maintained by the Planning Department and are revised to reflect amendments under § 17.02.030 and § 17.92.080 (zoning plan amendments). Confirm current map status at the Planning Division.

What are the ADU rules in unincorporated Shasta County?

Shasta County implements accessory dwelling unit rules in Chapter 17.88 (see § 17.88.132 and related subsections). Key local rules include size caps (e.g., living area limits), setback exceptions (converted garages, 5‑ft side/rear for ADUs above garages), parking rules (typically 1 space for studio/1‑bed, 2 for ≥2‑beds unless state exemptions apply), and building/fire safety compliance; exceptions can be approved by administrative permit (§ 17.88.132 and § 17.88.140). Compare local rules with state ADU law.

Are there special rules in floodplains?

Yes. The county has incorporated FEMA flood studies (FIS dated December 16, 2021) by reference in § 17.02.030.D; where a parcel is in a mapped area of special flood hazard Chapters 17.22 and 17.70 apply (floodplain management). Confirm FEMA map status and any floodway restrictions before design.

How does Planned Development (PD) zoning work in Shasta County?

A PD zone becomes operational only after recordation of a final or parcel map implementing the PD, or when a final use permit or final development plan is approved by the director/commission/board as applicable; modifications and revocations are governed by § 17.62.080–.100. PD districts permit the county and applicant to establish customized standards but those standards must be recorded and implemented to be effective.

If my parcel shows "U" (Unclassified), what does that mean?

The U district is a holding district applied where a precise principal zone has not yet been adopted. It permits a one‑family residence and other limited uses and requires that new uses be consistent with the General Plan; see § 17.64.010–.025 for permitted uses and the requirement that areas not otherwise zoned default to U.

Does Shasta County allow medical marijuana dispensaries in unincorporated areas?

The county’s local policy prohibits operation of medical marijuana dispensaries in the unincorporated area (ordinance intent language and prohibitions are in Title 17 amendments addressing medical marijuana). See the local code chapter discussing dispensaries and cultivation rules for exact prohibitions and permit requirements. (Specific ordinance subsections regarding dispensaries and cultivation are included in Title 17 excerpts.)

Where are parking requirements and who enforces them?

Off‑street parking requirements for county zoning are in Chapter 17.86; district chapters (e.g., OS, R‑districts) often state "Parking is as specified in Chapter 17.86." For driveway and encroachment standards, check the Shasta County Development Standards. ---

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