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Title 9 — Planning and Zoning

Chapter 9.48 — RS RESIDENTIAL SINGLE-FAMILY DISTRICT

Lake Forest Zoning Code · 2026-06 edition · updated 2026-07-25 · Lake Forest

§ 9.48.010. Purpose of district.

The RS district is established to provide for the development and maintenance of medium-density single-family attached or detached residential neighborhoods in which flexibility of development and optimum utilization of each building site are featured. Only those uses are permitted that are complementary to and can exist in harmony with such a residential neighborhood. (Ord. 176 § 1, 2007)

§ 9.48.020. Principal uses permitted.

The following principal uses are permitted.

  • A. Single-family detached dwellings;

  • B. Parks, playgrounds, and athletic fields (noncommercial);

  • C. Residential care facilities, in accordance with Chapter 5.44 (Residential Care Facilities);

  • D. Small and large family day care homes;

  • E. Limited home rentals.

  • (Ord. 176 § 1, 2007; Ord. 297 § 3, 2017; Ord. 363 § 8, 2023)

§ 9.48.030. Principal uses permitted subject to a site development permit.

The following principal uses are permitted subject to the approval of a site development permit under Section 9.184.010 :

  • A. Public libraries and museums;

  • B. Public or private utility buildings and structures.

  • (Ord. 176 § 1, 2007; Ord. 297 § 3, 2017)

§ 9.48.040. Principal uses permitted subject to a use permit.

The following principal uses are permitted subject to the approval of a use permit by the Planning Commission under Section 9.184.010 .

  • A. Wireless communication facilities under Chapter 9.162 of this Code;

  • B. Churches, temples, and other places of worship;

  • C. Educational institutions;

  • D. Any other use that the Planning Commission finds is consistent with the purpose and intent of this district.

  • (Ord. 176 § 1, 2007; Ord. 297 § 3, 2017)

§ 9.48.050. Temporary uses permitted.

Certain temporary uses, permitted per Section 9.144.070 , include the following:

  • A. Residential tract sales and rentals;

  • B. Mobilehome residence during construction of a dwelling;

  • C. Continued use of an existing building during construction of a new building;

  • D. Christmas tree sales;

  • E. Halloween pumpkin sales.

  • (Ord. 176 § 1, 2007)

§ 9.48.060. Accessory uses and structures permitted.

The following accessory uses and structures are permitted when associated with and subordinate to a permitted principal use on the same legal parcel of land:

  • A. Uses permitted under Section 9.144.080 ;

  • B. Signs, as permitted by Chapter 9.164 ;

  • C. Noncommercial keeping of pets and animals in accordance with Section 9.146.030 ;

  • D. Home occupations under Section 9.146.060 ;

  • E. Riding and hiking trails;

  • F. Accessory dwelling units under Section 9.146.050 ;

  • G. Accessory uses and structures that the Director of Community Development finds are consistent with the purpose and intent of this district.

  • (Ord. 176 § 1, 2007; Ord. 297 § 3, 2017; Ord. 298 § 2, 2017)

§ 9.48.070. Prohibited uses.

Notwithstanding Sections 9.48.020 through 9.48.060 , the following uses are specifically prohibited:

  • A. Apiaries;

  • B. Keeping pets or animals for any commercial purpose unless otherwise provided for by an approved use permit;

  • C. The storage of vehicles, equipment, or products related to a commercial activity not permitted in this district;

  • D. Transitory lodgings;

  • E. Uses not expressly permitted by this chapter.

(Ord. 176 § 1, 2007; Ord. 297 § 3, 2017)

§ 9.48.080. Site development standards.

  • A. Building Site Area. 7,000 square feet minimum except per Section 9.144.020 .

  • B. Building Height. 35 feet maximum except per Section 9.144.020 .

  • C. Building Site Coverage. 60% maximum.

  • D. Building Setbacks. Per Sections 9.144.030 , 9.144.040 , and 9.144.080 .

  • E. Off-Street Parking. Per Section 9.168.010 .

  • F. Lights. All lights shall be designed and located so that direct light rays shall be confined to the premises.

  • (Ord. 176 § 1, 2007; Ord. 374, 2/4/2025)

§ 9.48.090. Ancillary uses permitted.

The following ancillary uses are permitted subject to special provisions as noted:

  • A. Power supply facility in accordance with Chapter 9.166 of this Code. (Ord. 176 § 1, 2007)

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Contents — Lake Forest Zoning Code
Lake Forest Zoning Code
  1. Title 9 — Planning and Zoning
    Overview
    1. Chapter 9.02 — PLANNING COMMISSION
    2. Chapter 9.04 — GENERAL PROVISIONS
    3. Chapter 9.08 — ADULT BUSINESS ZONING REGULATIONS
    4. Chapter 9.10 — MARIJUANA REGULATION - ADMINISTRATION
    5. Chapter 9.16 — (RESERVED)
    6. Chapter 9.30 — (RESERVED)
    7. Chapter 9.44 — R1 SINGLE-FAMILY RESIDENCE DISTRICT
    8. Chapter 9.48 — RS RESIDENTIAL SINGLE-FAMILY DISTRICT
    9. Chapter 9.52 — STATE-MANDATED RESIDENTIAL—TWO UNIT PROJECTS
    10. Chapter 9.56 — R2 MULTIFAMILY DWELLINGS DISTRICT
    11. Chapter 9.60 — MULTIFAMILY RESIDENTIAL OBJECTIVE DESIGN STANDA…
    12. Chapter 9.64 — R4 SUBURBAN MULTIFAMILY RESIDENTIAL DISTRICT
    13. Chapter 9.68 — RP RESIDENTIAL-PROFESSIONAL DISTRICT
    14. Chapter 9.72 — NON-RESIDENTIAL ZONING DISTRICTS
    15. Chapter 9.73 — MIXED-USE DISTRICT
    16. Chapter 9.76 — (RESERVED)
    17. Chapter 9.80 — (RESERVED)
    18. Chapter 9.86 — (RESERVED)
    19. Chapter 9.88 — (RESERVED)
    20. Chapter 9.96 — (RESERVED)
    21. Chapter 9.100 — (RESERVED)
    22. Chapter 9.112 — PC PLANNED COMMUNITY DISTRICT
    23. Chapter 9.124 — PD PLANNED DEVELOPMENT DISTRICT
    24. Chapter 9.140 — UNDERGROUND UTILITY DISTRICTS
    25. Chapter 9.142 — DONATION COLLECTION BOXES
    26. Chapter 9.144 — GENERAL REGULATIONS
    27. Chapter 9.146 — SPECIAL REGULATIONS
    28. Chapter 9.148 — PUBLIC SAFETY RADIO SYSTEM COVERAGE
    29. Chapter 9.150 — SURFACE MINING AND LAND RECLAMATION REGULATIONS
    30. Chapter 9.151 — HOUSING ELEMENT SITES INVENTORY REGULATIONS
    31. Chapter 9.152 — AFFORDABLE HOUSING INCENTIVES AND DENSITY BONU…
    32. Chapter 9.160 — FACILITY DESIGN REGULATIONS
    33. Chapter 9.162 — WIRELESS COMMUNICATION FACILITIES
    34. Chapter 9.164 — SIGNS
    35. Chapter 9.166 — CABLE SYSTEM POWER SUPPLY FACILITIES DESIGN AN…
    36. Chapter 9.168 — OFF-STREET PARKING
    37. Chapter 9.170 — REGULATION OF PERIMETER WALLS
    38. Chapter 9.172 — CONDOMINIUM CONVERSIONS
    39. Chapter 9.176 — MOBILEHOME REGULATIONS
    40. Chapter 9.180 — TEMPORARY OUTDOOR PROMOTIONS
    41. Chapter 9.182 — OUTDOOR VENDING ON PRIVATE PROPERTY
    42. Chapter 9.184 — DISCRETIONARY PERMITS
    43. Chapter 9.188 — NONCONFORMING USES
    44. Chapter 9.192 — CERTIFICATES OF USE AND OCCUPANCY
    45. Chapter 9.194 — DEVELOPMENT AGREEMENTS
    46. Chapter 9.196 — AMENDMENTS AND ZONE CHANGES
    47. Chapter 9.208 — ENFORCEMENT PROCEDURES
    48. Chapter 9.220 — COVENANTS FOR EASEMENTS
    49. Chapter 9.228 — CANYON COMMERCIAL DISTRICT
    50. Chapter 9.232 — PORTOLA BLUFF RESIDENTIAL DISTRICT
    51. Chapter 9.236 — OPEN SPACE CONSERVATION DISTRICT

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