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Earlier editions: 2026-09

Article 2 — Land Use/Zoning Districts

Twentynine Palms Municipal Code Ch. 19.20 Open Space Residential District (OSR)

Twentynine Palms Municipal Code · 2026-10 edition · updated 2026-10-04 · Twentynine Palms

Cite as: Twentynine Palms Municipal Code Chapter 19.20 · Text as of 2026-10-04

Footnotes:

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Editor's note— Ord. No. 310, § 4(Exh. A), adopted Sept. 26, 2023, repealed the former Ch. 19.20, §§ 19.20.010—19.20.040, and enacted a new Ch. 19.20 as set out herein. The former Ch. 19.20 pertained to similar subject matter and derived from original codification.

19.20.010 - Purpose

The purpose of this Chapter is to describe the character and intent of the Open Space Residential Land Use District, identify allowed uses and establish development standards for the district.

(Ord. No. 310, § 4(Exh. A), 9-26-2023)

Exceptions & meaning →

19.20.020 - Description and Intent of Land Uses

This district is intended for properties which have limited development and limited development potential. Open Space Residential-designated lands include publicly owned lands, BLM land, mountainous territory with scenic value, or other prominent land forms. The intent of this designation is to allow development of single-family dwellings, with minimal disruption of the land. Public uses are to be focused on the natural qualities of the area, keeping as much open space as reasonably possible. The Open Space Residential Land Use District includes the following categories:

A. OSR, which allows a maximum of 1 dwelling unit per 10 acres.

B. OSR-40, which allows a maximum of 1 dwelling unit per 40 acres.

(Ord. No. 310, § 4(Exh. A), 9-26-2023)

Exceptions & meaning →

19.20.030 - Allowed Uses and Permit Requirements

Allowed uses and permit requirements for the Open Space Residential Land Use District are listed in Table 19.20.030-1 (Allowed Land Uses and Permit Requirements). The table lists all use-related permits for primary and accessory uses that are permanent in nature. Additional permit requirements are listed in Chapters 19.28 through 19.64 related to permits and procedures. Allowed temporary uses are listed in Chapter 19.34 (Temporary Use Permit and Standards). Allowed accessory uses are listed in Chapter 19.70 (Accessory Uses and Structures).

Table 19.20.030-1 Allowed Land Uses and Permit Requirements

Allowed Use OSR OSR-40 Additional Requirements
RESIDENTIAL USES AND CARE FACILITIES RESIDENTIAL USES AND CARE FACILITIES RESIDENTIAL USES AND CARE FACILITIES RESIDENTIAL USES AND CARE FACILITIES
Single-family dwelling P P Chapter 19.69 (Residential Development Standards and Design Criteria)
Small family day care (8 or fewer children) P P Chapter 19.114 (Community Care Facilities)
Large family day care (9 to 14 children) AUP AUP Chapter 19.114 (Community Care Facilities)
Residential or community care facilities serving 6 or fewer persons P P
Congregate care facilities serving 6 or fewer persons P P
Supportive and transitional housing P P
Caretaker housing AUP AUP
Accessory dwelling unit P P Chapter 19.134 (Accessory Dwelling Units)
Windmills and solar energy collectors, noncommercial P P Chapter 19.68 (General Development Standards and Exceptions)
AGRICULTURAL AND RELATED USES AGRICULTURAL AND RELATED USES AGRICULTURAL AND RELATED USES AGRICULTURAL AND RELATED USES
Row, field and tree crops for property user consumption only 1 P P
Row, field and tree crops for commercial purposes 1 CUP CUP
Cultivation of ornamental or landscaping plants, including greenhouses, for commercial purposes CUP CUP
Produce stands for products grown on the same property SPR SPR
Retail nurseries CUP CUP
INSTITUTIONAL USES INSTITUTIONAL USES INSTITUTIONAL USES INSTITUTIONAL USES
Cemeteries 2 CUP CUP
Organizational /Group camps 2 CUP CUP
Governmental facilities 2 CUP CUP
Public safety uses and facilities 2 CUP CUP
TRANSIENT LODGING FACILITIES TRANSIENT LODGING FACILITIES TRANSIENT LODGING FACILITIES TRANSIENT LODGING FACILITIES
Campgrounds and recreational vehicle parks CUP CUP Chapter 19.124 (Mobile Home and Special Occupancy Parks)
Vacation Home Rental VHR VHR Chapter 19.41 (Vacation Home Rental)
COMMUNICATION FACILITIES, TRANSPORTATION FACILITIES, AND UTILITIES
Communication facilities CUP CUP Chapter 19.140 (Telecommunication Facilities)
Utility and service uses and structures P P
MINERAL EXTRACTION MINERAL EXTRACTION MINERAL EXTRACTION MINERAL EXTRACTION
Mining 3 CUP CUP See Chapter 19.58 (Surface Mining and Land Reclamation Permits)
TEMPORARY AND INTERIM USES (See Chapter 19.34 , Temporary Use Permit and Standards)
ACCESSORY USES (See Chapter 19.70 , Accessory Uses and Structures)
  • = Prohibited Use P = Permitted AUP = Administrative Use Permit CUP = Conditional Use Permit Notes:1For those uses which do not require large amounts of water, to be determined in consultation with the water district. 2All institutional uses shall be located within 1,000 feet of an expressway, arterial street or collector street, and have an adequate, improved private drive. 3Limited to resources found in the district, only with the strictest controls that minimize land disruption.

(Ord. No. 310, § 4(Exh. A), 9-26-2023)

Exceptions & meaning →

19.20.040 - Development Standards

All new land uses and structures or alterations to existing land uses and/or structures in the Open Space Residential Land Use District shall be designed, constructed and established in compliance with the development standards in Table 19.20.040-1 (Development Standards).

Table 19.20.040-1 Development Standards

Standard OSR OSR-40 Additional Requirements
ALLOWED DENSITY (Dwelling Units per Gross Acre)
Minimum 0 0
Maximum 1 0.1 0.025
LOT SIZE AND DIMENSIONS LOT SIZE AND DIMENSIONS LOT SIZE AND DIMENSIONS LOT SIZE AND DIMENSIONS
Minimum Lot Size 10 acres 40 acres
Minimum Lot Width 300 ft. 300 ft.
Minimum Lot Depth 300 ft. 300 ft.
Minimum Width to Depth Ratio 1:4 1:4
MINIMUM SETBACKS (Feet) MINIMUM SETBACKS (Feet) MINIMUM SETBACKS (Feet) MINIMUM SETBACKS (Feet)
Front, First Story and Above 32 32 Chapter 19.68 (General Development Standards and Exceptions)
Side, First Story 15 15 Chapter 19.68 (General Development Standards and Exceptions)
Side, Second Story and Above 20 20 Chapter 19.68 (General Development Standards and Exceptions)
Street Side, First Story and Above 25 25 Chapter 19.68 (General Development Standards and Exceptions)
Rear, First Story and Above 25 25 Chapter 19.68 (General Development Standards and Exceptions)
Distance Between Buildings N/A N/A
LOT COVERAGE LOT COVERAGE LOT COVERAGE LOT COVERAGE
Maximum 20 20
BUILDING HEIGHT (Feet) BUILDING HEIGHT (Feet) BUILDING HEIGHT (Feet) BUILDING HEIGHT (Feet)
Maximum 35 35 Chapter 19.68 (General Development Standards and Exceptions)
UNIT SIZE (Square Feet) UNIT SIZE (Square Feet) UNIT SIZE (Square Feet) UNIT SIZE (Square Feet)
Minimum N/A N/A Residential units must be a minimum of 400 square feet

1Shall only apply to the new subdivision of property.

(Ord. No. 310, § 4(Exh. A), 9-26-2023)

Exceptions & meaning →

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