San Bernardino Zoning & Land Use Guide

Sources checked· 2026-10-04
Last updated: Verified:

Key Zoning Facts

Building Code Edition
2025 California Building Standards Code (Title 24), effective January 1, 2026
ADU / Accessory Apartment
Yes
Example District
RE — Residential Estate
Max Height
45 ft / 3 stories

San Bernardino is the county seat of San Bernardino County (the largest county by area in the contiguous US) with a population of approximately 222,100 (2020 Census). The city manages land use through Title 19 (Land Use/Subdivision Regulations) of its Municipal Code, known as the Development Code.

The Development Code establishes residential zones (RE through RSH), commercial zones (CO through CCS), industrial zones (OIP through IE), and special purpose zones, along with several overlay districts.

Key Zoning Districts

Residential Zones (Chapter 19.04)

Zone Name Max Density Min Lot Size Front Setback Max Height Lot Coverage
RE Residential Estate 1 du/acre 1 acre 35 ft 3 stories / 45 ft 35%
RL Residential Low 3.5 du/acre 9,720 sq ft 25 ft 2.5 stories / 35 ft 35%
RS Residential Suburban 4.5 du/acre 7,200 sq ft 20 ft 2.5 stories / 35 ft 35%
RU Residential Urban 8 du/acre 7,200 sq ft 20 ft 2.5 stories / 35 ft 40%
RM Residential Multi-Family 12 du/acre 14,400 sq ft 20 ft 3 stories / 42 ft 50%
RMH Residential Multi-Family High 24 du/acre 20,000 sq ft 15 ft 3 stories / 42 ft 50%
RH Residential High 31 du/acre 20,000 sq ft 15 ft 4 stories / 56 ft 50%
RSH Residential Student Housing 20 du/acre 5 acres 40 ft 4 stories / 56 ft 50%

Multi-family zones (RM, RMH, RH) are limited to 2.5 stories / 35 ft within 75 feet of an RS zone boundary. Senior housing receives higher density allowances.

Commercial Zones (Chapter 19.06)

Zone Name Max Height Lot Coverage
CO Commercial Office 4 stories / 52 ft 50%
CG-1/CG-2/CG-3 Commercial General 2 stories / 30 ft 50%
CR-1 Commercial Regional - Downtown 4 stories / 52 ft 75%
CR-2 Commercial Regional - Mall 100 ft 100%
CR-3 Commercial Regional - Tri-City 4 stories / 52 ft 75%
CR-4 Commercial Regional - Auto Plaza 2 stories / 30 ft 75%
CH Commercial Heavy 45 ft 75%
CCS-1/CCS-2 Central City South 2 stories / 30–50 ft 50–75%

Industrial Zones (Chapter 19.08)

Zone Name Min Lot Size Max Height Lot Coverage
OIP Office Industrial Park 10,000 sq ft 42 ft 50%
IL Industrial Light 20,000 sq ft 2 stories / 50 ft 75%
IH Industrial Heavy 40,000 sq ft No limit 75%
IE Industrial Extractive N/A N/A N/A

Overlay Districts

  • A — Airport Overlay
  • FC — Freeway Corridor
  • FF — Foothill Fire Zones
  • FP — Flood Plain
  • TCC — TriCity Corporate Centre
  • ES — Emergency Shelter

Accessory Dwelling Units (ADUs)

Under California Government Code Section 65852.2, San Bernardino allows ADUs in all residential zones (updated by Ordinance MC 1645, January 2025):

  • By-right ADU: Up to 800 sq ft
  • Standard ADU: 850 sq ft (studio/1-bed) or 1,000 sq ft (2+ bed)
  • Attached ADU: Up to 50% of primary dwelling (minimum 800 sq ft guaranteed)
  • JADU: Up to 500 sq ft within existing single-family structure
  • Setbacks: 4 ft side/rear, 25 ft front
  • Height: 16 ft detached; 18 ft within ½ mile of transit; up to 25 ft attached
  • Parking: 1 space per ADU (exempt near transit and under 750 sq ft)
  • Lot coverage: ADU cannot cause total lot coverage to exceed 50%
  • Rental: Minimum 30-day term (no short-term rentals)
  • Pre-approved plans: City offers pre-selected ADU plans (462 sq ft and 738 sq ft)

More information: San Bernardino ADU Program

Development Process

  1. Zoning Verification — Check your property's zone using the interactive zoning map or contact Planning at (909) 998-2300
  2. Pre-Application Meeting — Recommended for significant projects
  3. Plan Review — Submit required applications to the Planning Division
  4. Building Permit — Apply through the Building & Safety Division
  5. Inspections — Schedule required inspections during construction
  6. Certificate of Occupancy — Obtain final approval before occupying the structure

Key Considerations

  • The city has transitioned from sbcity.org to sanbernardino.gov — both domains are active
  • Multi-family buildings are height-restricted to 35 ft within 75 feet of RS zone boundaries
  • Senior housing receives significantly higher density allowances in most residential zones
  • The CR-2 (Regional Mall) zone allows up to 100 ft height and 100% lot coverage
  • Check for overlay districts (Airport, Freeway Corridor, Foothill Fire, Flood Plain) that may impose additional requirements
  • Verify flood zone status using FEMA's Flood Map Service

Disclaimer: This guide provides general information about zoning in San Bernardino and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with the San Bernardino Planning Division at (909) 998-2300 or review the Development Code before making development decisions.

Regulatory Layers That Apply in San Bernardino

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — California

  • Building Code: 2025 California Building Standards Code (Title 24), effective January 1, 2026
  • State ADU Override: Yes (California Government Code Section 65852.2)
View California zoning overview

County — San Bernardino County

  • Role: County-level property records, tax assessment, unincorporated area planning

City / Municipal

The municipality's zoning ordinance, building-code enforcement, and local permits form the primary local layer of land-use regulation for your property.

Overlay Districts

Private Restrictions

  • Private covenants, deed restrictions, condominium rules, or association rules can impose requirements beyond zoning.
  • Check HOA CC&Rs and deed restrictions for additional requirements.

Primary Zoning Districts

REResidential Estate
Max Height
45 ft / 3 stories
Front Setback
35 ft
Side Setback
5 ft interior / 15 ft street side
Rear Setback
20 ft
RLResidential Low
Max Height
35 ft / 2.5 stories
Front Setback
25 ft average / 20 ft minimum
Side Setback
5 ft interior / 15 ft street side
Rear Setback
20 ft average / 15 ft minimum
RSResidential Suburban
Max Height
35 ft / 2.5 stories
Front Setback
25 ft average / 20 ft minimum
Side Setback
5 ft interior / 15 ft street side
Rear Setback
20 ft average / 15 ft minimum
RUResidential Urban
Max Height
35 ft / 2.5 stories
Front Setback
25 ft average / 20 ft minimum
Side Setback
5 ft interior / 15 ft street side
Rear Setback
10 ft

ADU Rules in San Bernardino

ADUs:Allowed

State law (statewide context, not city-specific):

California has enacted multiple ADU laws codified primarily in Government Code section 65852.2, including AB 68 (2019), SB 13 (2019), AB 881 (2019), and AB 2221 (2022). These laws collectively limit local ADU fees, set ministerial 60-day permit timelines, prohibit owner-occupancy requirements (through Jan 1, 2025 under AB 881 and extended by later legislation), restrict parking mandates near transit, and require local agencies to allow attached, detached, and junior ADUs in single-family and multifamily residential zones.

Source (California)

For local size, setback, and parking specifics, contact the City of San Bernardino Community & Economic Development, Planning Division.

Full ADU rules for San Bernardino →

Permit Costs & Timelines

Check Current Permit Fees & Timelines

Permit fees and review times can vary by project type, scope, valuation, and required approvals. Check the current schedule with the local permitting authority before filing.

Check current San Bernardino permit information →

Official Sources

City-specific

Frequently Asked Questions

What building code does San Bernardino follow?
San Bernardino applies the 2025 California Building Standards Code (Title 24) for current 2026 permit applications, together with applicable local amendments.
Can I build an ADU in San Bernardino?
Yes. California's current State ADU Law (Government Code §§66310–66342) requires qualifying ADUs to be allowed on residentially developed lots, subject to the current statutory and local implementation rules. Use San Bernardino's current ADU guidance for size, height, setbacks, parking and pre-approved plan options.
What is the difference between CG-1, CG-2, and CG-3 zones?
All three are Commercial General zones with similar development standards (30 ft max height, 50% lot coverage) but may differ in permitted uses and location-specific requirements. Check the Development Code Chapter 19.06 for details.