Local zoning · Auburn

Auburn — Zoning

Q: What are Auburn’s basic residential setbacks?

From Appendix A: typical R-1 and R-2 front setbacks are 20 ft, with side yards 5 ft (one story) and 7.5 ft (two story), and a 25 ft rear in R‑1. R‑3 shows similar fronts with a 10 ft rear. Always confirm parcel-specific footnotes and buffers at R‑1 edges. See Appendix A to §159.016.

Q: Where are emergency shelters allowed?

In the C‑3‑ES district, emergency shelters are permitted by right with specific standards (max 25 occupants, parking of 1 per staff plus 1 per 4 residents, on-site management/security, interior waiting area, showers, secure storage). See §159.047.

Q: What minimum lot sizes apply in agricultural areas?

Appendix A shows A‑1 (Exclusive Agricultural) with a 5-acre minimum lot area/area per unit, and AR (Agricultural Residential) with a 1-acre minimum. See Appendix A to §159.016.

Q: Can I run a small business in an office zone next to homes?

In OB , business/professional offices are permitted; beauty salons are permitted unless abutting residential (then a use permit is required). Animal hospitals and on-site living quarters require a use permit. See §159.041.

Q: What extra rules apply to light manufacturing near homes?

The M‑L district has “interface” standards at residential edges: at least a 15 ft rear/side setback with fencing, required screening (wall/landscape), limited wall openings, and shielded lighting. See §159.045(D)(5).

Q: Are ADUs allowed on my lot?

ADUs/JADUs are permitted in R‑1 , R‑2 , R‑3 , A‑1 , and AR , subject to §§159.328–159.329 development standards and state law. Start with the [Auburn ADUs] page and confirm your base district on the map. See §159.328.A.1.

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

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Last reviewed: July 1, 2026

Overview

Auburn’s zoning rules live in Title XV: Land Use, Chapter 159 of the Auburn Municipal Code, known locally as the “Zoning Law of the City of Auburn.” The ordinance implements the Auburn Area General Plan, establishes base districts and combining/overlay districts, and ties dimensional standards to an official zoning map kept by the Planning Department. Most measurable standards (heights, setbacks, lot sizes, parking ratios) are in Appendix A to §159.016, and each parcel’s controls are read together with the base district and any overlays on the [zoning map] kept by the city.

How Auburn’s zoning is organized

Title and purpose. Chapter 159 is adopted under state planning law to protect public health, safety and welfare and to implement the General Plan.
Zoning map controls. District boundaries and designations are on the city’s official zoning map (on file with Planning and the City Clerk). Map notes are a legal part of the ordinance. If land is annexed or unshown, it defaults to R-1 until rezoned.
Districts. Auburn establishes residential, commercial, industrial, agricultural, office, special purpose, airport-related, open space/conservation, downtown-focused, historic, and multiple combining districts (e.g., -5, -7, -P) listed in §159.015.
Dimensional standards. Heights, minimum lots, yards, area per unit, lot coverage, and district parking ratios come from Appendix A to §159.016; use permissions come from §§159.030–159.047.
Process touchpoints. Many proposals also trigger design review, parking, and sometimes overlay districts. Use permits and variances are provided within Chapter 159.

Key dimensional standards at a glance

Use this table to spot the most decision-relevant controls. Always confirm the applicable district(s) on the zoning map, then read Appendix A footnotes.

District	Height	Min Lot Width	Front Yard	Typical Rear Yard	Area per Unit	Min Lot Area	Lot Coverage	Parking	Code Reference
R-1	30 ft	50 ft	20 ft	25 ft	5,000 sf	5,000 sf	35%	2 per unit	Appendix A to §159.016
R-2	30 ft	50 ft	20 ft	10 ft (rear; see special buffer at R-1 edge)	3,500 sf	5,000 sf	40%	2 per unit	Appendix A to §159.016
R-3	30 ft	50 ft	20 ft	10 ft (rear; see buffer at R-1 edge)	2,750 sf	5,000 sf	40%	2 per unit	Appendix A to §159.016
C-1	30 ft	75 ft	10 ft	0 ft	—	10,000 sf	50%	1/400 sf	Appendix A to §159.016
C-2	40 ft	20 ft	0 ft	0 ft	—	2,000 sf	100%	1/400 sf (new), 1/800 sf (reconstr.)	Appendix A to §159.016
C-3	40 ft	150 ft	10 ft	0 ft	—	20,000 sf	—	1/400 sf	Appendix A to §159.016
M-1	30 ft	80 ft	10 ft	10 ft	—	20,000 sf	—	1/1,000 sf	Appendix A to §159.016
M-2	40 ft	80 ft	0 ft	0 ft	—	10,000 sf	—	1/1,000 sf	Appendix A to §159.016
A-1	—	—	25 ft	25 ft	5 acres	5 acres	—	2 per unit	Appendix A to §159.016
AR	30 ft	100 ft	25 ft	25 ft	—	1 acre	20%	2 per unit	Appendix A to §159.016

Notes:

Several Appendix A rows include buffer/landscaping where lots adjoin R-1; read footnotes on the map sheet.
Off-street parking location limits include a prohibition on placing required residential parking in front/street side yards, and special boat/trailer limits in R-2/3/4. See §159.171 and §159.173, and the city’s parking page.

District-by-district guidance

R-1 — Single-Family Residential

Purpose/use. One single-family detached dwelling plus customary accessory buildings are allowed by right; small licensed care/day-care homes (≤6), municipal uses like schools and parks, and up to six unrelated persons living as a non-profit group are listed. Use permit options include churches, a guest house, certain private recreation facilities, home occupations, and bed-and-breakfasts.
Key standards. The R-1 district sets a 30 ft height, 20 ft front setback, 25 ft rear, and 5/7.5 ft sides, with 35% lot coverage and 2 parking spaces per dwelling.
Where it applies. Predominant in established single-family neighborhoods; confirm on the zoning map.

R-2 — Two-Family Residential (Duplex)

Purpose/use. All R-1 uses plus duplexes; duplexes follow the dimensional rules via §159.016.
Key standards. 30 ft height, 20 ft front, 10 ft rear with a specific buffer and fencing when abutting R-1; 3,500 sf area per unit; 40% coverage; 2 spaces/unit. Boats/trailers prohibited in front setbacks in R-2/3/4.
Where it applies. Scattered near mixed residential areas; verify on the zoning map.

R-3 — Medium Density Multiple-Family

Purpose/use. All R-1/2 uses plus multifamily, supportive housing, and transitional housing by right; certain institutional/office uses by use permit.
Key standards. 30 ft height, 20 ft front, 10 ft rear (with R-1 adjacency buffer), 2,750 sf per unit; 40% coverage; 2 spaces/unit.
Where it applies. Medium-density corridors and infill sites; check the zoning map.

R-4 — High Density Multiple-Family

Purpose/use. Not found in retrieved materials.
Key standards. Not found in retrieved materials; Appendix A does not show an R-4 row in the excerpts. Verify with the jurisdiction.

C-1 — Neighborhood Commercial

Purpose/use. Neighborhood-serving retail and services (e.g., bakeries, hardware, small banks, restaurants), with optional apartments by use permit; several outdoor/drive-in formats require a use permit or special permit.
Key standards. 30 ft height, 10 ft front yard, 0 ft interior sides, 1/400 sf parking ratio (floor area), and 50% max coverage. 10,000 sf typical minimum lot size.
Where it applies. Neighborhood nodes; confirm with the zoning map.

C-2 — Central Business

Purpose/use. All C-1 uses plus a broad list of downtown commercial uses and notably “apartments and rental housing” within buildings.
Key standards. 40 ft height, 0 ft front/side/rear, 1/400 sf parking for new construction (1/800 sf for reconstruction), and up to 100% coverage. 2,000 sf minimum lot size.
Where it applies. Historic/downtown commercial core; also see historic preservation and design review.

C-2A — Central Business-A

Purpose/use. Mirrors C-1 and C-2 permissions; the section explicitly references the C-2 use list.
Key standards. Not uniquely listed in Appendix A excerpt; treat similarly to C-2 unless the map or conditions state otherwise. Verify with the jurisdiction. Not found in retrieved materials for dimensions.

C-3 — Regional Commercial

Purpose/use. All C-1 and C-2 uses are allowed in C-3.
Key standards. 40 ft height, 10 ft front, some zero-yard conditions, 1/400 sf parking, and larger 20,000 sf minimum lot size.
Where it applies. Highway or big-box corridors; confirm on the map.

C-3-ES — Regional Commercial – Emergency Shelter

Purpose/use. All C-3 uses plus emergency shelters by right, subject to specific standards. Caps occupancy at 25, sets parking at “1/staff + 1/4 residents,” requires on-site management/security, interior waiting areas, lighting, showers (min. 2), and secure personal property areas.
Key standards. Underlying C-3 dimensional controls plus the programmatic standards above.

OB — Office Building

Purpose/use. Business/professional offices by right; beauty salons by right unless abutting residential (then use permit). Animal hospitals and on-site living quarters require a use permit.
Key standards. Appendix A shows setbacks/parking typical of a low-intensity commercial office district; confirm for your site. Not all OB dimensions were visible in the excerpt.

HS — Highway Service

Purpose/use. Hotels, motels, gas stations, restaurants, retail, car washes, laundromats, nurseries, public buildings, drive-ins, and office buildings—by use permit.
Key standards. Not found in retrieved materials for dimensional numbers; check Appendix A for HS when available. Verify with the jurisdiction.

M-1 — Industrial Park

Purpose/use. A wide range of light industrial and service commercial (e.g., repair shops, cabinet shops, labs, warehouses, professional offices) by right; some commercial uses allowed via use permit.
Key standards. 30 ft height; industrial yard/setback standards per Appendix A; parking 1/1,000 sf typical.

M-2 — Industrial

Purpose/use. Heavier industrial (ready-mix, bulk petroleum storage, sawmills, truck terminals, welding, food processing), with certain heavy uses (e.g., junk yards, slaughterhouses, smelting) by use permit.
Key standards. 40 ft height; zero-yard conditions typical in Appendix A; parking 1/1,000 sf.

M-L — Light Manufacturing

Purpose/use. Low-intensity manufacturing, processing, assembly, distribution; also allows limited offices/wholesale/schools and small recycling collection. Subject to Airport Land Use Compatibility Plan where applicable.
Key standards. Outdoor storage and trash enclosures must be screened; design review and landscaping apply; performance standards address noise, emissions, vibration, hazards, and waste; special “interface” standards require at least 15 ft setbacks, fencing, screening walls/landscaping, limited wall openings, and shielded lighting where abutting residential zoning/uses.

A-1 — Exclusive Agricultural

Purpose/use. All R-1 uses plus agriculture, apiaries, aviaries, substations, and stables; larger ag-industrial (e.g., fertilizer plants, processing) by use permit.
Key standards. Appendix A shows 5-acre minimums and standard residential setbacks (e.g., 25 ft front).

AR — Agricultural Residential

Purpose/use. All A-1 uses.
Key standards. Appendix A shows 1-acre minimum, 30 ft height, 25 ft front/rear, 20% max coverage.

S — Special Public Service

Purpose/use. Public and quasi-public facilities including hospitals, golf courses, country clubs, airports/heliports, rodeo facilities.
Key standards. Appendix A indicates special/variable standards (“iii” footnotes). Verify site-specific requirements.

AI-DC — Airport Industrial Design Control

Purpose/use. Airport facilities, aircraft-related enterprises, certain recreation facilities, and permitted light industrial uses from §159.045(B), all subject to the Airport Land Use Compatibility Plan.
Key standards. Not found in retrieved materials for numerical setbacks; rely on Appendix A and applicable ALUCP criteria. Verify with the jurisdiction.

OSC — Open Space and Conservation

Purpose/use. Applied to properties to be maintained in an open/undeveloped state or for permanent open uses. Access roads/tracks/trails need site/design approval and must be essential and terrain-compatible. Appeals may balance public welfare against hardship; “excess” public lands are to be rezoned compatibly.
Key standards. Not found in retrieved materials for dimensions. Verify with the jurisdiction.

DC — Auburn Dam Overlook Civic Design Control District

Purpose/use. Not found in retrieved materials.
Key standards. Not found in retrieved materials. See overlay districts. Verify with the jurisdiction.

DH — Auburn Historic District

Purpose/use. Not found in retrieved materials here; projects often intersect with historic preservation and design review procedures.
Key standards. Not found in retrieved materials. Verify with the jurisdiction.

Combining Districts: -5, -7, -8.5, -10, -15, -1A, -2A, -P

Purpose/use. Combining districts modify base-district standards (commonly minimum lot area or acreage) shown on the map. Appendix A shows illustrative minima like -5 at 5,000 sf and -7 at 7,000 sf. Mapping and other combine effects must be confirmed on the zoning map. Not all details were visible.

Other cross-cutting provisions you’ll likely hit

Off-street parking and loading. Location and design rules apply citywide; see §159.171 for yard-location limits and the parking page for ratios and design.
Design review. Many exterior changes/new construction require design review.
Nonconforming uses/buildings. See nonconforming uses. Ordinance provides amortization/change limits; confirm case-by-case.
Variances and use permits. The code authorizes variances and exceptions and use permits, with findings and possible conditions.
Landscaping and screening. Industrial and some commercial districts reference the city’s landscaping standards; see landscaping and screening.
ADUs. Auburn permits ADUs/JADUs in specified zones (R-1, R-2, R-3, A-1, AR) with development standards in §§159.328–159.329; coordinate with Auburn ADUs, and state law under California ADU law and California housing laws.
Signs. See the city’s signage standards for commercial projects.

Checklist

Identify your base district(s) on the city’s official zoning map on file with Planning and the City Clerk.
Check whether any combining or special/overlay districts (e.g., C-2A, AI-DC, DH, -5/-7) apply to your parcel.
Confirm allowed uses in §§159.030–159.047 for your district; note which uses require a use permit.
Pull dimensional controls from Appendix A to §159.016 (heights, yards, lot size, lot coverage, per‑unit area).
Verify off-street parking ratios and yard location limits (no required parking in front/street side yards for residential).
Determine if design review applies to your exterior work or site plan.
If within AI-DC or near the airport, check ALUCP compliance in addition to zoning.
If proposing an ADU/JADU, confirm you’re in an eligible district and meet §§159.328–159.329.
If the site has a lawful nonconformity, confirm limits under nonconforming uses.
For signs, coordinate with signage standards tied to Chapter 159.

Risks & Ambiguities

Issue	Why it matters	What to verify
Appendix A footnotes and partial rows	Buffering/yard notes and some district rows are footnoted; snippets can omit critical details.	Obtain the full Appendix A sheet for your map tile; confirm all footnotes.
R-4 standards missing	High-density MF controls weren’t visible in the retrieved text.	Request the complete §159.032–§159.034 set and Appendix A for R‑4 from Planning. Not found in retrieved materials.
C-2A, HS, OB dimensional specifics	Not all numbers were visible in the excerpts.	Confirm Appendix A and any district-specific notes with staff.
Combining districts (-5, -7, -8.5, etc.)	These modify base minimum lot size or related standards.	Read the zoning map designation and Appendix A line for your suffix.
Airport influence (AI-DC, M-L near airport)	Adds ALUCP limits on heights/uses even when zoning allows.	Cross-check zoning with the Airport Land Use Compatibility Plan.
Downtown residential allowance	Apartments are allowed in C-2, but standards differ from R districts.	Confirm yard/parking rules in Appendix A and §159.171 for location of parking.

Plain-English Summary

Auburn assigns each parcel a base zone (R-1, C-2, M-1, etc.), and the official zoning map plus any suffix/overlay tells you what you can build. The use list for your district lives in §§159.030–159.047; the measurements you must meet (heights, setbacks, lot size, coverage, parking) are in Appendix A to §159.016. Many projects also need design review and must follow citywide parking and landscaping rules. Always check the map first, then read your district plus any combining/overlay district and Appendix A details before you design.

Source References

Title XV: Land Use; Chapter 159 “Zoning Law of the City of Auburn,” purpose/authority and Planning Commission powers: §159.002–§159.006
Establishment of districts and zoning map: §159.015–§159.018 (incl. default R‑1 for unclassified/annexed land)
Appendix A dimensional standards: §159.016 (Appendix A excerpts for R, C, M, A, AR, OB, S)
Residential uses: R-1 §159.030; R-2 §159.031; R-3 §159.032 (incl. supportive/transitional housing)
Commercial uses: C-1 §159.033; C-2 §159.034; C-2A §159.046; C-3 §159.035; C-3‑ES §159.047
Industrial uses: M-1 §159.036; M-2 §159.037; M‑L §159.045 and related interface/landscaping standards
Agricultural/other: A-1 §159.038; AR §159.039; S §159.040; AI‑DC §159.043; OSC §159.044
Off-street parking location limits and off-site parking: §159.171–§159.172; boat/trailer limits: §159.173
Use permits and variances framework: §159.405–§159.409
ADUs/JADUs zoning applicability and standards: §§159.327–159.329 (zoning list in §159.328.A.1)

Information Gaps

R‑4 uses and dimensional standards: Not found in retrieved materials.
Detailed dimensional rows for OB, HS, C‑2A, AI‑DC, OSC, DC, DH in Appendix A: Not fully visible in excerpts.
Full combining district mechanics (-8.5, -10, -15, -1A, -2A, -P) beyond minimum lot area cues: Not found in retrieved materials.

Sources

Retrieved passages

Auburn Zoning Code (§ 159.015.) Medium relevance
Auburn Zoning Code (§ 9-4.301) Medium relevance
Auburn Zoning Code (§ 159.144.) Medium relevance
Auburn Zoning Code (chapter shall) Medium relevance
Auburn Zoning Code (§ 9-4.401) Medium relevance
Auburn Zoning Code (§ 9-4.704) Medium relevance
Auburn Zoning Code (§ 9-4.508) Medium relevance
Auburn Zoning Code (§ 9-4.2302) Medium relevance
Auburn Zoning Code (§ 159.390) High relevance
Auburn Zoning Code (§ 159.390) Medium relevance
Auburn Zoning Code (§ 9-4.501) Medium relevance
Auburn Zoning Code (§ 159.016.) Medium relevance
Auburn Zoning Code (section may) Medium relevance
Auburn Zoning Code (section and) Medium relevance
Auburn Zoning Code (Chapter Provisions) Medium relevance
Auburn Zoning Code (§ 153.02) Medium relevance
Auburn Zoning Code Medium relevance
Auburn Zoning Code (§ 9-4.505) Medium relevance
Auburn Zoning Code (§ 9-4.1903) Medium relevance

Cited sections

Official Auburn code library

Frequently asked questions

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

A single-family home with accessory structures is allowed by right. Small licensed care/day-care homes (up to six people), public schools/parks, and similar uses are also permitted. Churches, a guest house, certain private recreation, home occupations, and B&Bs require a use permit. Setbacks include a 20 ft front yard and 25 ft rear yard. See §159.030 and Appendix A to §159.016.

Are apartments allowed downtown in Auburn?

Yes. In the Central Business (C-2) district, “apartments and rental housing” are listed as permitted uses within buildings. Parking and setbacks follow the downtown standards (e.g., zero-yard conditions; specific parking ratios for new vs. reconstruction). See §159.034 and Appendix A to §159.016.

What are Auburn’s basic residential setbacks?

From Appendix A: typical R-1 and R-2 front setbacks are 20 ft, with side yards 5 ft (one story) and 7.5 ft (two story), and a 25 ft rear in R‑1. R‑3 shows similar fronts with a 10 ft rear. Always confirm parcel-specific footnotes and buffers at R‑1 edges. See Appendix A to §159.016.

Do I need design review in Auburn?

Many exterior changes and most new buildings require design review under §§159.110–159.125. Industrial/light manufacturing districts also tie into landscaping/design submittals. Check with Planning early.

Where are emergency shelters allowed?

In the C‑3‑ES district, emergency shelters are permitted by right with specific standards (max 25 occupants, parking of 1 per staff plus 1 per 4 residents, on-site management/security, interior waiting area, showers, secure storage). See §159.047.

How do I find my zoning in Auburn?

The official zoning map is incorporated into the ordinance and kept on file at Planning (with a copy at the City Clerk). The map and its notes are legally a part of the code. See §159.017.

What minimum lot sizes apply in agricultural areas?

Appendix A shows A‑1 (Exclusive Agricultural) with a 5-acre minimum lot area/area per unit, and AR (Agricultural Residential) with a 1-acre minimum. See Appendix A to §159.016.

Can I run a small business in an office zone next to homes?

In OB, business/professional offices are permitted; beauty salons are permitted unless abutting residential (then a use permit is required). Animal hospitals and on-site living quarters require a use permit. See §159.041.

What extra rules apply to light manufacturing near homes?

The M‑L district has “interface” standards at residential edges: at least a 15 ft rear/side setback with fencing, required screening (wall/landscape), limited wall openings, and shielded lighting. See §159.045(D)(5).

Are ADUs allowed on my lot?

ADUs/JADUs are permitted in R‑1, R‑2, R‑3, A‑1, and AR, subject to §§159.328–159.329 development standards and state law. Start with the [Auburn ADUs] page and confirm your base district on the map. See §159.328.A.1.

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