Chapter 84.01 — ACCESSORY STRUCTURES AND USES
San Bernardino County Zoning Code · 2026-06 edition · updated 2026-07-25 · San Bernardino County
§ 84.01.010 Purpose and Severability. ¶
This Chapter establishes the regulations and criteria that determine the location of compatible accessory structures and uses within various land use zoning districts. The purpose of this Chapter is also intended to provide for the creation of accessory dwelling units and junior accessory dwelling units in accordance with applicable state law. If for any reason any provision in this Chapter is declared invalid, then all other provisions shall remain valid and enforceable.
This Chapter establishes the regulations and criteria that determine the location of compatible accessory structures and uses within various land use zoning districts. The purpose of this Chapter is also intended to provide for the creation of accessory dwelling units and junior accessory dwelling units in accordance with applicable state law. If for any reason any provision in this Chapter is declared invalid, then all other provisions shall remain valid and enforceable.
(Ord. 4383, passed - -2020; Am. Ord. 4504, passed - -2026)
§ 84.01.020 General Development Standards. ¶
(a) Land Use Zoning District Regulations Applicable. Unless otherwise provided, accessory structures and uses shall be subject to the same regulations as the primary structure or use, including projections into setbacks specified in § 83.02.080 (Allowed Projections).
(b) Legally Established Primary Use. An accessory structure or use shall always exist in conjunction with, and never without, a legally established primary structure or primary use that has the same common owner. Where the primary use is a residence, it shall not be enclosed within an accessory structure. Where the primary use has not yet been established, an accessory structure may only be built subject to the issuance of a Temporary Use Permit in compliance with Chapter 84.25 (Temporary Structures and Uses).
(c) Use of Accessory Structure . The use of an accessory structure may be for either a primary or an accessory use allowed by the applicable land use zoning district.
(d) Determination of Accessory Uses. In addition to the accessory uses specifically provided for by this Chapter or elsewhere within this Development Code, each land use shall be deemed to include other accessory uses that are necessarily and customarily associated with and are clearly incidental and subordinate to the primary land use. Whenever the accessory uses are questioned, the Director shall be responsible for determining if a proposed accessory use meets the criteria in this Chapter. Before making a determination, the Director shall give notice to contiguous property owners in compliance with § 85.02.030 (Staff Review with Notice).
(e) Maximum Site Coverage . Except as otherwise provided in this Chapter, the combination of accessory and primary structures on a parcel shall not exceed the maximum site coverage allowed by the applicable land use zoning district regulations in Division 2 (Land Use Zoning Districts and Allowed Land Uses).
(f) Location on Same or Contiguous Parcel. Accessory structures or uses, which may or may not entail the use of a structure, shall be located on either:
(1) The same parcel as the primary structure or use; or
(2) A contiguous parcel that is owned by the same owner who owns the parcel that has the primary structure or use, with the exception of:
(A) Guest housing and accessory dwelling units in compliance with § 84.01.050(a), below.
(B) Those properties that touch property lines of a subject parcel when the lines are projected across public or private rights of way, easements, roads, streets, or railroad rights of way.
(C) Utilities shall not be constructed across the property line(s) of two or more contiguous parcels. If the placement of proposed utilities would otherwise cross the property line of two or more contiguous parcels held by the same owner, the property owner shall apply for and receive an approved voluntary lot merger before issuance of a building permit.
(a) Land Use Zoning District Regulations Applicable. Unless otherwise provided, accessory structures and uses shall be subject to the same regulations as the primary structure or use, including projections into setbacks specified in § 83.02.080 (Allowed Projections).
(b) Legally Established Primary Use. An accessory structure or use shall always exist in conjunction with, and never without, a legally established primary structure or primary use that has the same common owner. Where the primary use is a residence, it shall not be enclosed within an accessory structure. Where the primary use has not yet been established, an accessory structure may only be built subject to the issuance of a Temporary Use Permit in compliance with Chapter 84.25 (Temporary Structures and Uses).
(c) Use of Accessory Structure. The use of an accessory structure may be for either a primary or an accessory use allowed by the applicable land use zoning district.
(d) Determination of Accessory Uses. In addition to the accessory uses specifically provided for by this Chapter or elsewhere within this Development Code, each land use shall be deemed to include other accessory uses that are necessarily and customarily associated with and are clearly incidental and subordinate to the primary land use. Whenever the accessory uses are questioned, the Director shall be responsible for determining if a proposed accessory use meets the criteria in this Chapter. Before making a determination, the Director shall give notice to contiguous property owners in compliance with § 85.02.030 (Staff Review with Notice).
(e) Maximum Site Coverage. Except as otherwise provided in this Chapter, the combination of accessory and primary structures on a parcel shall not exceed the maximum site coverage allowed by the applicable land use zoning district regulations in Division 2 (Land Use Zoning Districts and Allowed Land Uses).
(f) Location on Same or Contiguous Parcel. Accessory structures or uses, which may or may not entail the use of a structure, shall be located on either:
(1) The same parcel as the primary structure or use; or
(2) A contiguous parcel that is owned by the same owner who owns the parcel that has the primary structure or use, with the exception of:
(A) Guest housing and accessory dwelling units in compliance with § 84.01.050(a), below.
(B) Those properties that touch property lines of a subject parcel when the lines are projected across public or private rights of way, easements, roads, streets, or railroad rights of way.
(C) Utilities shall not be constructed across the property line(s) of two or more contiguous parcels. If the placement of proposed utilities would otherwise cross the property line of two or more contiguous parcels held by the same owner, the property owner shall apply for and receive an approved voluntary lot merger before issuance of a building permit.
(Ord. 4383, passed - -2020; Am. Ord. 4393, passed - -2020; Am. Ord. 4504, passed - -2026)
§ 84.01.030 Agricultural Accessory Structures and Uses. ¶
This Section provides standards for accessory structures and uses that are related to a primary agricultural use.
(a) Animal Keeping. Animal keeping activities are governed by Chapter 84.04 (Animal Keeping) of this Code.
(b) Row Field Tree and Nursery Crop and Animal Product Sales Stand. The retail trade of plant or animal products primarily grown on the subject property shall be allowed when displayed from one stand with a floor area no larger
than 200 square feet on parcels greater than 10,000 square feet in area. Standards for produce stands are provided in Chapter 84.03 (Agritourism Enterprises) of this Code.
(c) Caretaker Housing. The caretaker dwelling unit shall be subject to accessory dwelling unit development standards in § 84.01.060(e).
(d) Seasonal Labor Quarters. Labor quarters for agricultural operations that are limited to three months of the year that encompass the harvest season of the agricultural product may utilize recreational vehicles as temporary labor quarters. A Site Plan Permit shall still be required to ensure proper services are supplied to the temporary laborers. Also, a Special Use Permit shall be required to monitor the use.
This Section provides standards for accessory structures and uses that are related to a primary agricultural use.
(a) Animal Keeping. Animal keeping activities are governed by Chapter 84.04 (Animal Keeping) of this Code.
(b) Row Field Tree and Nursery Crop and Animal Product Sales Stand. The retail trade of plant or animal products primarily grown on the subject property shall be allowed when displayed from one stand with a floor area no larger than 200 square feet on parcels greater than 10,000 square feet in area. Standards for produce stands are provided in Chapter 84.03 (Agritourism Enterprises) of this Code.
(c) Caretaker Housing. The caretaker dwelling unit shall be subject to accessory dwelling unit development standards in Chapter 84.36 (Accessory Dwelling Units).
(d) Seasonal Labor Quarters. Labor quarters for agricultural operations that are limited to three months of the year that encompass the harvest season of the agricultural product may utilize recreational vehicles as temporary labor quarters. A Site Plan Permit shall still be required to ensure proper services are supplied to the temporary laborers. Also, a Special Use Permit shall be required to monitor the use.
(Ord. 4383, passed - -2020; Am. Ord. 4504, passed - -2026)
§ 84.01.040 Commercial and Industrial Accessory Structures and Uses. ¶
This Section provides standards for accessory structures and uses that are related to primary commercial and industrial uses.
(a) Exterior Storage . Exterior storage shall comply with Title 3 (Health and Sanitation and Animal Regulations) of the County Code. Screening of exterior storage shall comply with § 83.02.060 (Screening and Buffering).
(b) Caretaker Housing . The caretaker dwelling unit shall be subject to accessory dwelling unit development standards in § 84.01.060(e).
(c) Seasonal Labor Quarters. Labor quarters for commercial or industrial operations that are limited to three months of the year may utilize recreational vehicles as temporary labor quarters. A Site Plan Permit shall still be required to ensure proper services are supplied to the temporary laborers. Also, a Special Use Permit shall be required to monitor the use. Failure to obtain both the Site Plan Permit and the Special Use Permit required under this subsection shall render the placement, use and/or occupancy of recreational vehicles or similar vehicles unlawful and subject to enforcement under Chapter 86.09 of this Code.
This Section provides standards for accessory structures and uses that are related to primary commercial and industrial uses.
(a) Exterior Storage. Exterior storage shall comply with Title 3 (Health and Sanitation and Animal Regulations) of the County Code. Screening of exterior storage shall comply with § 83.02.060 (Screening and Buffering).
(b) Caretaker Housing. The caretaker dwelling unit shall be subject to accessory dwelling unit development standards in Chapter 84.36 (Accessory Dwelling Units).
(c) Seasonal Labor Quarters. Labor quarters for commercial or industrial operations that are limited to three months of the year may utilize recreational vehicles as temporary labor quarters. A Site Plan Permit shall still be required to ensure proper services are supplied to the temporary laborers. Also, a Special Use Permit shall be required
to monitor the use. Failure to obtain both the Site Plan Permit and the Special Use Permit required under this subsection shall render the placement, use and/or occupancy of recreational vehicles or similar vehicles unlawful and subject to enforcement under Chapter 86.09 of this Code.
(Ord. 4383, passed - -2020; Am. Ord. 4504, passed - -2026)
§ 84.01.050 Residential Accessory Structures and Uses. ¶
This Section provides standards for Accessory Structures and Uses that are related to residential single-family and multi-family dwelling units (e.g., play yards, pools, storage sheds, etc.) or that are residential in nature (e.g., guest housing, accessory dwelling units, etc.).
(a) Number of Accessory Residential Units. In addition to a single-family or multi-family dwelling unit, unless indicated otherwise, a combination of two of the following additional accessory units may be allowed on parcels less than five acres in size and a combination of three of the following may be allowed on parcels five acres or greater in size:
(1) Accessory Dwelling Unit. An accessory dwelling unit regulated by Chapter 84.36 (Accessory Dwelling Units).
(2) Junior Accessory Dwelling Unit. A junior accessory dwelling unit regulated by Chapter 84.36 (Accessory Dwelling Units).
(3) Guest House. Guest housing shall be located on the same parcel as the primary dwelling unit and shall be separated from it by at least ten feet. Guest housing shall be for use by temporary guests of the occupants of the primary dwelling unit and shall not be rented or otherwise used as a separate dwelling; the guest house may be used as a short-term rental when in compliance with Chapter 84.28 (Short-Term Residential Rentals). Only one guest house shall be allowed provided the accessory structure does not exceed the maximum number of accessory units allowed on the parcel. In the Single Residential (RS) or the Multiple Residential (RM) land use zoning districts on parcels less than two and one-half acres in size, the guest housing unit shall not extend in front of the primary structure. The provisions of § 84.21.030(i) shall apply to a manufactured home used as guest housing.
(b) Parking. Except as otherwise provided in this chapter, parking for guest housing shall comply with Chapter 83.11 (Parking and Loading Standards).
(c) Carport and/or Garage. Detached carports or garages shall be limited to 1,200 square feet when located on parcels that are less than 20,000 square feet in size.
(d) Other Residential Accessory Structures and Uses. See § 83.02.080 (Allowed Projections into Setbacks).
(1) Except in the Mountain Region, structures and uses such as cabanas, tennis courts, ramadas, water towers and wells, swimming pools, or storage buildings shall not extend in front of the primary structure where the primary structure faces a street right-of-way.
(2) Accessory dwelling units may be located in front of the primary structure when in compliance with setback standards.
(3) Ground mounted solar may be located in front of the primary structure when in compliance with setback standards, screened and not prominently visible from the street.
(e) Detached Storage Structures. Parcels that are one acre or less in size shall be limited to only one detached storage structure that exceeds 120 square feet and the storage structure shall not exceed 1,000 square feet. Except in the Mountain Region, detached storage structures shall not extend in front of the primary structure where the primary structure faces a right-of-way.
(f) Freight Containers and Similar Storage-Type Structures.
(1) Freight containers, railroad cars, intermodal containers, and other similar storage-type structures shall be allowed as accessory structures in the RS (Single Residential) or RM (Multiple Residential) land use zoning districts
provided that they are compatible with the appearance of the on-site primary structure and the surrounding neighborhood and setting. A Compatibility Determination application shall be approved by the Planning Division of the Land Use Services Department to allow such a structure. Screening such a structure from view from the street or the physical alteration of such a structure, such as painting or otherwise altering the structure, may be considered in the approval of the application. Such railroad car, container or similar storage-type structure shall be placed behind the primary structure and not prominently visible from the street.
(2) Freight containers, railroad cars, intermodal containers, and other similar storage-type structures shall be allowed as accessory structures in the Agriculture (AG) or Rural Living (RL) land use zoning districts provided that they shall be altered, either painted or structurally altered, to appear to be similar to, and compatible with, the appearance of the on-site primary structure and the surrounding neighborhood or to blend in with the surrounding environment. Such railroad car, container or similar storage-type structure shall be allowed provided that the container can be placed behind the primary structure and not prominently visible from the street.
(g) Animal Keeping. Accessory animal keeping shall be conducted as specified in Chapter 84.04 (Animal Keeping). (h) Exterior Storage. Exterior storage shall be fully and solidly screened and kept below the level of the fence or other screening mechanism. Exterior storage shall comply with Title 3 (Health and Sanitation and Animal Regulations) of the County Code. Screening of exterior storage shall comply with § 83.02.060 (Screening and Buffering).
(i) Residential Crop Production. Accessory crop production shall be allowed on parcels of 10,000 square feet or more, with a temporary sales facility for plant or animal products grown on the subject property. The sales facility shall not be larger than 200 square feet in area and shall display produce for sale for no longer than 72 hours in any calendar month. Standards for produce stands are provided in Chapter 84.03 (Agritourism Enterprises). This does not include wholesale or retail nurseries.
(j) Private Office. A private office shall be for the sole use of the dwelling unit occupants within a primary structure and shall have no external advertising or signs.
(k) Compatibility. In the RS (Single Residential) and RM (Multiple Residential) land use zoning districts, the appearance of an accessory structure shall be similar to, and compatible with, the appearance of the primary structure and the surrounding neighborhood and setting.
(l) Storage of Firewood. The storage of firewood shall comply with Chapter 84.09 (Firewood Storage).
(Ord. 4383, passed - -2020; Am. Ord. 4400, passed - -2021; Am. Ord. 4504, passed - -2026)
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Ask AI about this code▸ Contents — San Bernardino County Zoning Code
- Chapter 81.01 — PURPOSE AND EFFECT OF DEVELOPMENT CODE
- Chapter 81.02 — INTERPRETATION OF REGULATIONS
- Chapter 82.01 — LAND USE PLAN, LAND USE ZONING DISTRICTS, AND …
- Chapter 82.02 — ALLOWED LAND USES AND DEVELOPMENT
- Chapter 82.03 — AGRICULTURAL AND RESOURCE MANAGEMENT LAND USE …
- Chapter 82.04 — RESIDENTIAL LAND USE ZONING DISTRICTS
- Chapter 82.05 — COMMERCIAL LAND USE ZONING DISTRICTS
- Chapter 82.06 — INDUSTRIAL AND SPECIAL PURPOSE LAND USE ZONING…
- Chapter 82.07 — ADDITIONAL AGRICULTURE (AA) OVERLAY
- Chapter 82.08 — AGRICULTURAL PRESERVE (AP) OVERLAY
- Chapter 82.09 — AIRPORT SAFETY (AR) OVERLAY
- Chapter 82.10 — ALTERNATE HOUSING (AH) OVERLAY
- Chapter 82.11 — BIOTIC RESOURCES (BR) OVERLAY
- Chapter 82.12 — CULTURAL RESOURCES PRESERVATION (CP) OVERLAY
- Chapter 82.13 — FIRE SAFETY (FS) OVERLAY
- Chapter 82.14 — FLOODPLAIN SAFETY (FP) OVERLAY
- Chapter 82.15 — GEOLOGIC HAZARD (GH) OVERLAY
- Chapter 82.16 — HAZARDOUS WASTE (HW) OVERLAY
- Chapter 82.17 — MINERAL RESOURCES (MR) OVERLAY
- Chapter 82.18 — NOISE HAZARD (NH) OVERLAY
- Chapter 82.19 — OPEN SPACE (OS) OVERLAY
- Chapter 82.20 — PALEONTOLOGIC RESOURCES (PR) OVERLAY
- Chapter 82.21 — SIGN CONTROL (SC) OVERLAY
- Chapter 82.22 — SPHERE STANDARDS (SS) OVERLAY
- Chapter 82.23 — COMMUNITY PLANS, SPECIFIC PLANS AND AREA PLANS
- Chapter 82.36 — OAK HILLS COMMUNITY PLAN
- Chapter 83.01 — GENERAL PERFORMANCE STANDARDS
- Chapter 83.02 — GENERAL DEVELOPMENT AND USE STANDARDS
- Chapter 83.03 — AFFORDABLE HOUSING INCENTIVES - DENSITY BONUS
- Chapter 83.04 — CONDITIONAL GRADING COMPLIANCE
- Chapter 83.05 — DEDICATIONS AND INSTALLATIONS OF STREET AND TR…
- Chapter 83.06 — FENCES, HEDGES, AND WALLS
- Chapter 83.07 — LIGHT TRESPASS
- Chapter 83.08 — HILLSIDE GRADING STANDARDS
- Chapter 83.09 — INFRASTRUCTURE IMPROVEMENT STANDARDS
- Chapter 83.10 — LANDSCAPING STANDARDS
- Chapter 83.11 — PARKING AND LOADING STANDARDS
- Chapter 83.12 — ROAD SYSTEM DESIGN STANDARDS
- Chapter 83.13 — SIGN REGULATIONS
- Chapter 83.14 — TRANSPORTATION CONTROL MEASURES
- Chapter 83.15 — CONDITIONAL COMPLIANCE FOR WATER QUALITY MANAG…
- Chapter 84.01 — ACCESSORY STRUCTURES AND USES
- Chapter 84.02 — ADULT BUSINESSES
- Chapter 84.03 — AGRITOURISM ENTERPRISES
- Chapter 84.04 — ANIMAL KEEPING
- Chapter 84.05 — BED AND BREAKFAST USES
- Chapter 84.06 — CEMETERIES
- Chapter 84.07 — COMMERCIAL AND INDUSTRIAL TRANSITIONAL USES
- Chapter 84.09 — FIREWOOD STORAGE
- Chapter 84.10 — GARAGE SALES
- Chapter 84.11 — HAZARDOUS WASTE FACILITIES
- Chapter 84.12 — HOME OCCUPATIONS
- Chapter 84.13 — MASSAGE SERVICES
- Chapter 84.14 — MOBILE HOME PARKS
- Chapter 84.16 — MULTI-FAMILY RESIDENTIAL DEVELOPMENT STANDARDS
- Chapter 84.17 — NONCONFORMING USES AND STRUCTURES
- Chapter 84.18 — PLANNED DEVELOPMENT STANDARDS
- Chapter 84.19 — RECYCLING FACILITIES
- Chapter 84.20 — SERVICE STATIONS
- Chapter 84.21 — SINGLE-FAMILY RESIDENTIAL DWELLINGS
- Chapter 84.22 — SMALL LOT RESIDENTIAL DEVELOPMENT
- Chapter 84.23 — LICENSED RESIDENTIAL CARE FACILITIES
- Chapter 84.24 — SOLID WASTE/RECYCLABLE MATERIALS STORAGE
- Chapter 84.25 — TEMPORARY STRUCTURES AND USES
- Chapter 84.26 — WIND ENERGY SYSTEMS - ACCESSORY
- Chapter 84.27 — WIRELESS TELECOMMUNICATION FACILITIES
- Chapter 84.28 — SHORT-TERM RESIDENTIAL RENTALS
- Chapter 84.29 — RENEWABLE ENERGY GENERATION FACILITIES
- Chapter 84.30 — GREENHOUSE GAS EMISSIONS REDUCTION PLAN IMPLEM…
- Chapter 84.32 — SMALL UNLICENSED RESIDENTIAL CARE FACILITIES
- Chapter 84.33 — EMERGENCY SHELTERS
- Chapter 84.34 — COMMERCIAL CANNABIS ACTIVITY
- Chapter 84.35 — INDUSTRIAL HEMP
- Chapter 84.36 — ACCESSORY DWELLING UNITS
- Chapter 85.01 — PERMIT APPLICATION FILING AND PROCESSING
- Chapter 85.02 — BASIC REVIEW PROCEDURES
- Chapter 85.03 — APPLICATION PROCEDURES
- Chapter 85.04 — ABC LICENSING
- Chapter 85.05 — CERTIFICATE OF LAND USE COMPLIANCE
- Chapter 85.06 — CONDITIONAL USE PERMIT/MINOR USE PERMIT
- Chapter 85.07 — FLOOD HAZARD DEVELOPMENT REVIEWS
- Chapter 85.08 — SITE PLAN PERMITS
- Chapter 85.09 — TENANT REVIEW
- Chapter 85.10 — PLANNED DEVELOPMENT PERMITS
- Chapter 85.11 — PRE-CONSTRUCTION FLOOD HAZARD MITIGATION AND E…
- Chapter 85.12 — REVISIONS TO AN APPROVED ACTION
- Chapter 85.13 — SIGN LOCATION PLANS
- Chapter 85.14 — SPECIAL USE PERMITS
- Chapter 85.15 — TEMPORARY USE PERMITS
- Chapter 85.16 — TEMPORARY SPECIAL EVENT PERMITS
- Chapter 85.17 — VARIANCES
- Chapter 85.18 — ACCESSORY WIND ENERGY SYSTEM PERMIT
- Chapter 85.19 — FOOD TRUCK EVENT PERMITS
- Chapter 85.20 — UNLICENSED RESIDENTIAL CARE FACILITIES PERMIT
- Chapter 85.21 — ADULT BUSINESS REGULATORY PERMIT
- Chapter 86.01 — PLANNING AGENCY
- Chapter 86.02 — DEVELOPMENT REVIEW COMMITTEE
- Chapter 86.03 — ENVIRONMENTAL REVIEW COMMITTEE
- Chapter 86.04 — FLOODPLAIN ADMINISTRATOR
- Chapter 86.05 — DECISIONS BY THE REVIEW AUTHORITY
- Chapter 86.06 — TIME LIMITATIONS
- Chapter 86.07 — PUBLIC HEARINGS
- Chapter 86.08 — APPEALS
- Chapter 86.09 — ENFORCEMENT
- Chapter 86.10 — AGRICULTURAL PRESERVES/LAND CONSERVATION CONTR…
- Chapter 86.11 — AIRPORT COMPREHENSIVE LAND USE PLANS
- Chapter 86.12 — AMENDMENTS
- Chapter 86.13 — DEVELOPMENT AGREEMENT ADOPTION AND AMENDMENT
- Chapter 86.14 — SPECIFIC PLAN ADOPTION AND AMENDMENT
- Chapter 86.15 — POST-DISASTER REBUILDING
- Chapter 87.01 — SUBDIVISION ORDINANCE APPLICABILITY AND ADMINI…
- Chapter 87.02 — TENTATIVE MAP FILING AND PROCESSING
- Chapter 87.03 — PARCEL MAPS AND FINAL MAPS
- Chapter 87.04 — ADDITIONAL SUBDIVISION PROCEDURES
- Chapter 87.05 — DEDICATIONS AND EXACTIONS
- Chapter 87.06 — SUBDIVISION DESIGN AND IMPROVEMENT REQUIREMENTS
- Chapter 87.07 — IMPROVEMENT PLANS, INSTALLATION, AND SECURITY
- Chapter 87.08 — SOIL REPORTS
- Chapter 88.01 — PLANT PROTECTION AND MANAGEMENT
- Chapter 88.02 — SOIL AND WATER CONSERVATION
- Chapter 88.03 — SURFACE MINING AND LAND RECLAMATION
- Chapter 89.01 — DRAINAGE FACILITIES FINANCING
- Chapter 89.02 — RECREATIONAL FACILITIES FINANCING
- Chapter 89.03 — TRANSPORTATION FACILITIES FINANCING