Carson — Zoning

Last reviewed: July 1, 2026

Overview

Carson's zoning ordinance (the Carson Zoning Ordinance) establishes specific zoning districts, a legally incorporated Zoning Map, and the development standards that govern what may be built where in the city. The ordinance sets the zone names and purposes, the use tables for each zone, development standards (setbacks, heights, FAR, density), and special overlay rules; the Zoning Map on file with the City Clerk shows which parcel has which district (§ 9113.1; § 9114.1) .

How to read this page

This page summarizes only what the Carson municipal zoning ordinance itself says about zoning (district definitions, permitted uses, and key dimensional/development standards). For site-specific or building-code items see the separate pages on Carson Development Standards, Carson Parking, Carson Design Review, and consult the California Building Standards Code for construction rules.

District-by-district breakdown

Notes:

• The ordinance establishes residential, commercial, industrial and open/special-use categories; each district below quotes the ordinance purpose and points to the primary use table and the controlling development-standard sections. See the official Zoning Map on file with the City Clerk (§ 9114.1) to know which district applies to a parcel .
• Where a numeric standard is stated below it is taken directly from the ordinance and followed by the controlling §.

RA — Residential Agricultural

• Purpose: for single-family residential and compatible agricultural uses (§ 9113.1) .
• Typical permitted uses: single-family dwellings, limited accessory agricultural activities; uses list in the residential use table (§ 9121.1) .
• Key standards: default residential lot rules apply — minimum lot area baseline and frontage rules (minimum net lot area 5,000 sq ft except where density designation applies) (§ 9125.2) ; side yard and rear yard minima follow the residential yard rules (§ 9126.24, § 9126.25) .
• Where it applies: shown as RA on the Zoning Map; verify parcel designation with City Clerk (§ 9114.1) .

RS — Residential, Single‑Family

• Purpose: preserve low‑density single‑family neighborhoods (§ 9113.1) .
• Typical permitted uses: single‑family dwellings (automatic on lots ≥50' wide); accessory units subject to ADU rules (§ 9121.1; § 9122.1) .
• Key dimensional standards:
  • Minimum lot area baseline 5,000 sq ft (see § 9125.2) .
  • Side yard: ranges by lot width (e.g., 3 ft for lots <30', **10%** of lot width for 30–50' lots, **5 ft** for lots >50') (§ 9126.24) .
  • Rear yard: 15 ft or 15% of lot depth, whichever is less (§ 9126.25) .
• ADUs: accessory dwelling units follow the ADU section — minimum 4 ft side/rear setbacks for new detached ADUs; detached ADU height limit 16 ft (subject to State ADU law caveats) (§ 9122.1) .

RM — Residential, Multiple‑Dwelling

• Purpose: medium- and higher-density multi‑family housing areas (§ 9113.1) .
• Typical permitted uses: multiple-family dwellings, condominiums, and mixed residential forms per the RM use table (§ 9121.1) .
• Key standards:
  • If the zoning map carries a density designation (e.g., RM‑18), that number indicates dwelling units per net acre (calculation method in § 9124.1) and the ordinance caps densities as stated there (§ 9124.1) .
  • Private open-space minima and separation between buildings for multi‑family are set in Part 2 Div. 6 and the Multiple‑Family Dwelling sections; private open space: 130–150 sq ft per unit depending on unit size; usable open space ≥15% of residential gross floor area (§s 9128.51–9128.55 excerpted in the Part) .

CN — Commercial, Neighborhood Center; CR — Commercial, Regional Center; CG — Commercial, General

• Purpose: neighborhood convenience centers (CN), larger regional centers (CR), and general commercial strips (CG) (§ 9113.1) .
• Typical permitted uses: detailed in the commercial uses table; most retail, offices, service uses are listed with codes (X/L/C) and many commercial projects are subject to site plan and design review (§ 9131.1) .
• Key dimensional standards:
  • Front yard, side yard and rear yard minima depend on zone and context; the general commercial yard rules include a 20 ft standard front yard or 20% of lot depth (varies by subarea), and adjustments for structures over 30' (§ 9136.23–25) .
  • Height limits in commercial zones: generally 30 ft / 2 stories in CN and CG (except where Mixed‑Use Residential (MUR) overlay alters rules); CR can have greater heights provided additional yards are provided (§ 9136.12) .
• Mixed‑use overlays (below) apply in parts of the city and modify yard/height/FAR rules.

CA — Commercial, Automotive

• Purpose: a specialized Commercial Automotive District (CAD) intended for auto dealerships clustered along 223rd/405 corridor and similar areas (§ 9113.1; § 9138.15) .
• Typical permitted uses: new vehicle dealerships, vehicle display, related service uses — the CA zone has its own permitted-use and development‑standards list (§ 9138.15) .
• Key dimensional/site rules: specific CA provisions control signage, encroachments, display, and front/side yard configurations (see § 9138.15) — CA front/side yard rules and encroachment allowances are set out there and referenced from the commercial yard sections (§ 9138.15; § 9136.23–24) .

MU‑CS — Mixed‑Use — Carson Street (MUR overlay / Downtown retail)

• Purpose: pedestrian‑oriented downtown retail/residential core along Carson Street; encourages mixed-use and transit‑oriented development while imposing special design and site standards (§ 9138.7) .
• Typical permitted uses: a mix of retail, office, ground‑floor commercial with residential above — all subject to site plan and design review (§ 9138.7; § 9172.23) .
• Key standards (MUR overlay / MU‑CS specifics):
  • Minimum lot sizes (mixed‑use 20,000 sq ft; residential‑only 30,000 sq ft) and minimum street frontage 100 ft (§ 9138.7(B–C)) .
  • Floor Area Ratio (FAR) for mixed‑use/residential maximum 1.5; ground‑floor commercial minimum 0.15 FAR / maximum 0.7 FAR; subterranean garages excluded from FAR (§ 9138.7(D)) .
  • Height in MUR overlay: residential/mixed‑use generally limited to 3 stories / 45 ft, with exceptions for affordable/senior projects up to 4 stories / 55 ft per § 9136.12 and related parts (§ 9136.12; § 9138.7) .
  • Downtown‑style front/side/rear setbacks and projections are specifically tabulated in § 9136.23–25 (tables for floor-by-floor setbacks in MUR) .

ML — Manufacturing, Light; MH — Manufacturing, Heavy

• Purpose: ML for small/medium industrial uses with limited impacts; MH for heavier industrial uses with provisions to control adverse effects (§ 9113.1) .
• Typical permitted uses: manufacturing uses listed exhaustively in the industrial use table; many commercial principal uses allowed in industrial zones (see § 9141.1 use table) .
• Key standards:
  • Industrial minimum lot area for new parcels: 20,000 sq ft; minimum frontage 100 ft (§ 9145.2–9145.3) .
  • In industrial zones there is typically no height limit provided additional yards are provided (see § 9146.12) — long‑form site standards for yards, front setbacks and screening are in Part 4 (§ 9146.12; § 9146.23) .
  • Uses with hazardous materials and other regulated materials are permitted only with special limitations or conditional use permits; the industrial use table flags those items (§ 9141.1) .

OS — Open Space and SU — Special Use

• Purpose: parks, resource protection, large open recreation (OS) and special-purpose zones such as cemetery, blimp port, college, etc. (SU) (§ 9113.1; § 9113.2) .
• Typical permitted uses and standards are in Part 5 and the specific SU sub‑sections (e.g., SU‑CEM) — each SU has its own site requirements (§ 9151.x, § 9156.x, etc.) .

Decision‑relevant standards (quick reference table)

(For the full matrix of uses for each zone consult the use tables: residential uses § 9121.1; commercial uses § 9131.1; industrial uses § 9141.1) .

Practical guidance & interpretation notes

• Zoning districts and overlay combinations are explicitly shown on the City's official Zoning Map; the ordinance makes the map part of the Code and prescribes map‑reading rules (boundaries follow centerlines, property lines, or scale from map; areas with no designation default to RS) (§ 9114.1; § 9114.2) .
• Most commercial and multi‑family projects require Site Plan & Design Review under § 9172.23 — plan review is how the City enforces design, landscaping, and parking layout; see Carson Design Review for process guidance (§ 9131.1; § 9136.9) .
• For parking requirements consult the off‑street parking rules in Part 6; parking counts, compact space sizing, and landscaping percentages are all specified (see § 9162.x) and the City allows tandem/special arrangements for mixed‑use/affordable projects in certain circumstances — see Carson Parking (§ 9162.21; § 9162.52) .
• Overlay districts (for example MUR, MU‑CS, MU‑SB, and other overlay codes listed in § 9113.2) modify base zone standards (yards, FAR, heights) and must be checked against the map and § 9113.2 listings — see Carson Overlay Districts (§ 9113.2) .
• ADUs and two‑unit/second primary unit allowances: the code permits accessory dwelling units and sets ministerial standards (size maxima, setbacks, height caps) consistent with state ADU law; see § 9122.1 and the second primary / two‑unit rules § 9128.81–88 — also consult the City ADU page Carson ADUs (§ 9122.1; § 9128.81–88) . For building-safety compliance also check the California Building Standards Code.

Checklist

• Identify the parcel's zoning and any overlays on the official Zoning Map (§ 9114.1) .
• Confirm your proposed use is allowed (X/L/D/C/CC) in that zone (refer to § 9121.1 for residential, § 9131.1 for commercial, § 9141.1 for industrial) .
• Check dimensional standards (minimum lot size § 9125.2; front/side/rear yard rules § 9126.23–25 / § 9136.23–25; industrial site rules § 9146.23) .
• Review applicable FAR/density limits or overlay exceptions (MUR FAR 1.5; density rules § 9124.1; density bonus rules § 9402) .
• Calculate required off‑street parking and layout; consult Carson Parking and § 9162.x for stall sizes and landscaping requirements (§ 9162.21; § 9162.52) .
• Determine whether Site Plan & Design Review (§ 9172.23) or a Conditional Use Permit (§ 9172.21 / specific Part 2–5 conditional use lists) is required; prepare for design review where noted (§ 9131.1; § 9138.7) .
• For ADUs, follow § 9122.1 dimension and parking rules and the ministerial review standards (§ 9122.1) .
• If site is nonconforming, consult the nonconforming use rules before altering the use (see Carson Nonconforming Uses and Part 8 of the Chapter) (§ references in Part 8) .
• If seeking an exception, consult the variance/conditional use/zone change procedures (see Carson Variances and Exceptions and §§ 9172.x) .
• Verify utility, environmental, and safety standards (undergrounding, lighting, hazardous materials lists) in the zone‑specific sections (§§ 9136.x; § 9146.x) .
• Verify with the City (Planning Division / City Clerk) for any parcel‑specific interpretations or boundary scaling (§ 9114.2) .

Risks & Ambiguities

Plain‑English summary

Carson's zoning code divides the city into named zones (e.g., RS, RM, CN, CR, CA, ML, MH) that list what you can build, how big structures can be (heights, setbacks, FAR), and special overlay rules that change standards in downtown or automotive districts; check the official Zoning Map and the specific code sections cited here before you design or apply for permits (§ 9113.1; § 9114.1) .

Source References

• Zone names and purposes — § 9113.1 .
• Zoning Map and map‑reading rules — § 9114.1, § 9114.2 .
• Residential uses table — § 9121.1 (uses permitted in residential zones) .
• Minimum lot area and site requirements — § 9125.2, § 9125.3 .
• Residential yards/setbacks — § 9126.24, § 9126.25 .
• ADU and two‑unit/second primary unit standards — § 9122.1, § 9128.81–§ 9128.88 .
• Commercial uses table — § 9131.1; commercial yard/height rules § 9136.12, § 9136.23–25 .
• MU‑CS / MUR overlay development standards (FAR, lot sizes, parking) — § 9138.7; mixed‑use FAR rules § 9138.7(D) .
• Commercial Automotive (CA zone) specifics — § 9138.15 .
• Industrial uses and standards — § 9141.1, § 9145.2, § 9146.12 .
• Parking and lot/space standards — Part 6, Division 2 and § 9162.x (off‑street parking, stall sizes, landscaping) .
• Site Plan & Design Review requirement — § 9172.23 referenced throughout commercial and residential parts (see § 9131.1 and overlay rules) .

If you need clickable topical references on other City guidance pages, see:

• Carson Development Standards, Carson Parking, Carson Design Review, Carson Overlay Districts, Carson ADUs, Carson Nonconforming Uses, Carson Variances and Exceptions, California Building Standards Code.

Retrieved passages

• CMC § 9111.1 (Article 9.) High relevance show source text
• CMC § 6 (§ 6) High relevance show source text
• Carson Zoning Code (§ 9191.250.) Medium relevance show source text
• CMC § 4 (§ 4) Medium relevance show source text
• CMC § 9202.23 (§ 9202.23.) Medium relevance show source text
• Carson Zoning Code (§ 9191.438.) Medium relevance show source text
• CMC § 9162.8 (§ 9124.1.) Medium relevance show source text
• CMC § 9191.766 (§ 9191.766.) Medium relevance show source text
• CMC § 9126.91 High relevance show source text
• CMC § 9126.91 High relevance show source text
• Carson Zoning Code (Article IX) High relevance show source text
• CMC § 9 (§ 9) High relevance show source text
• CMC § 9126.91 High relevance show source text
• CMC § 10 (Chapter 12.75) High relevance show source text
• CBC § 66314 (§ 66314) High relevance show source text
• CMC § 2 (§ 2) High relevance show source text
• CMC § 9172.23 High relevance show source text
• Carson Zoning Code High relevance show source text
• CMC § 1 (§ 1) High relevance show source text
• CMC § 9172.23 (Chapter 15) Medium relevance show source text
• CMC § 1 (§ 1) Medium relevance show source text
• CMC § 4 (§ 4) Medium relevance show source text
• Carson Zoning Code (§ 2) Medium relevance show source text
• CMC § 9172.23 Medium relevance show source text
• CMC § 9113.1 (Chapter contain) Medium relevance show source text
• CMC § 9172.21 (Chapter are) Medium relevance show source text
• CMC § 9 (§ 9) Medium relevance show source text
• CMC § 9402 (§ 9402) Medium relevance show source text
• CMC § 9145.3 (§ 9145.3.) Medium relevance show source text
• CMC § 9172.21 (§ 15) Medium relevance show source text
• Carson Zoning Code Medium relevance show source text

Cited sections

• Zone names and purposes — **§ 9113.1** . (§ 9113.1)
• Zoning Map and map‑reading rules — **§ 9114.1**, **§ 9114.2** . (§ 9114.1)
• Residential uses table — **§ 9121.1** (uses permitted in residential zones) . (§ 9121.1)
• Minimum lot area and site requirements — **§ 9125.2**, **§ 9125.3** . (§ 9125.2)
• Residential yards/setbacks — **§ 9126.24**, **§ 9126.25** . (§ 9126.24)
• ADU and two‑unit/second primary unit standards — **§ 9122.1**, **§ 9128.81**–**§ 9128.88** . (§ 9122.1)
• Commercial uses table — **§ 9131.1**; commercial yard/height rules **§ 9136.12**, **§ 9136.23–25** . (§ 9131.1)
• MU‑CS / MUR overlay development standards (FAR, lot sizes, parking) — **§ 9138.7**; mixed‑use FAR rules **§ 9138.7(D)** . (§ 9138.7)
• Commercial Automotive (CA zone) specifics — **§ 9138.15** . (§ 9138.15)
• Industrial uses and standards — **§ 9141.1**, **§ 9145.2**, **§ 9146.12** . (§ 9141.1)
• Parking and lot/space standards — Part 6, Division 2 and § 9162.x (off‑street parking, stall sizes, landscaping) . (§ 9162.x)
• Site Plan & Design Review requirement — **§ 9172.23** referenced throughout commercial and residential parts (see § 9131.1 and overlay rules) . (§ 9172.23)
• Carson Development Standards, Carson Parking, Carson Design Review, Carson Overlay Districts, Carson ADUs, Carson Nonconforming Uses, Carson Variances and Exceptions, California Building Standards Code.
• Carson_ZoningCode.md

• Official Carson code library