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Title 21 — Zoning

Chapter 21.72 — MOBILE HOMES

Stanislaus County Zoning Code · 2026-06 edition · updated 2026-07-25 · Stanislaus County

Note: Prior ordinance history: Prior code Section 9-125.1, Ordinances NS 926, NS 1001 and CS 19.

§ 21.72.010. Applicability.

The regulations set forth in this chapter shall apply to the allowance of mobile homes used for residential purposes in all zoning districts. (Ord. CS 106 §14, 1984)

§ 21.72.020. District regulations.

A mobile home in lieu of any permitted single-family or accessory dwelling shall be permitted subject to the following:

  • A. In any zoning district, except the HS district, the mobile home shall meet the following eligibility and compatibility criteria:

    1. Eligibility. A mobile home shall be eligible if:

      • a. Is to be occupied only for residential purposes.

      • b. Conforms to all of the residential use development standards for single family structures applicable to the particular zoning of the lot on which it is being placed.

      • c. Was constructed within twenty years of the date the building permit application placement of the mobile home was submitted.

      • d. Is attached to a permanent foundation system approved by the county's chief building official.

      • e. Is placed on the county assessment roll.

    2. Compatibility. A mobile home shall be compatible if:

      • a. It is covered with material commonly found in new conventionally built residential structures within three hundred feet of the lot on which the mobile home is being placed.

      • b. The exterior covering material extends to the ground. If a solid concrete or masonry perimeter foundation is used, the exterior covering material need not extend below the top of the foundation. Alternative skirting materials commonly found on conventionally built residential structures will be considered compatible.

      • c. The roofing material shall be similar to materials commonly found on conventionally built residential structures within three hundred feet of the lot on which the mobile home is being placed.

      • d. The roof of the mobile home shall have eave and gable overhangs as follows:

        • i. Not less than one foot measured from the vertical side of the mobile home; or ii. Consistent to those of an existing dwelling located on the same lot.
  • B. A mobile home approved prior to February 25, 2021 for the care of ill, infirm, or aged members of family may be converted to an accessory dwelling in accordance with Chapter 21.74 of this Title or maintained under a temporary permit subject to the following:

    1. If converted to an accessory dwelling, a building permit shall be obtained and finaled and all applicable fees shall be paid to convert the temporary mobile home to a permanent status.

      • a. The mobile home to be converted shall not be required to meet the eligibility and compatibility criteria established under this chapter; however, any replacement of the home shall comply with all applicable criteria.
    2. If maintained under a temporary permit, the permit shall be subject to a renewal every five years and the permit shall not be transferrable to a new property owner and/or family member. In order to renew the permit, the property owner shall attest to the continued need for the mobile home for the original purpose as the permit was issued.

  • C. On property located in an A-2 zoning district to provide housing on the premises for persons employed on a full-time basis in connection with the agricultural use of the property or other property owned or leased by the same owner, where the type and amount of crops and/or animals are substantial enough to warrant such full-time employees and where the occupant of the principal residence works full-time on the property, subject to the following standards and conditions:

    1. Approval of a temporary mobile home permit by the director of planning and community development. Application shall be made by completing forms provided by the department of planning and community development and payment of an application fee. Applicants may be required to substantiate that the employee is, in fact, a full-time employee. Watchmen shall not be considered full-time employees for purposes of this subsection. The property

owner may renew the permit each year by the reaffirmation of the need to provide the housing and the payment of a renewal fee.

  1. The mobile home shall be accessory to and located in reasonable relationship to the existing agricultural use of the property.

  2. The mobile home shall not be rented or leased independent of the agricultural use to which it is accessory.

  3. The mobile home shall be removed from the premises at any time the principal use to which it is accessory is discontinued for a period of six months.

  4. The installation of a new mobile home or any replacement of an existing mobile home shall comply with the eligibility and compatibility criteria established under this chapter.

  5. A mobile home approved under this section may be converted to an accessory dwelling when permitted in accordance with Chapter 21.74 subject to all applicable building permit and public facilities fees.

    • a. The mobile home to be converted shall not be required to meet the eligibility and compatibility criteria established under this chapter; however, any replacement of the home shall comply with all applicable criteria.
  • D. On property located in an H-1, C-2, P-D, LM or M zoning district, to provide housing on the premises, for a person employed as a watchman, only on properties with substantial outside storage areas, based on the amount and value of the stored materials, and where there are no other residences, or in any zoning district to provide housing for a watchman on the site of a school or facility of any public agency, subject to the following conditions:

    1. Approval of an accessory mobile home permit by the planning director. Application shall be made by completing forms provided by the department of planning and community development and payment of an application fee. The property owner may renew the permit each year by the reaffirmation of the need to provide the housing and the payment of a renewal fee;

    2. The mobile home shall not be rented or leased independent of the principal use to which it is accessory;

    3. The mobile home shall be accessory to and located in reasonable relationship to the existing principal use of the property;

  1. The mobile home shall be removed from the premises at any time the principal use to which it is accessory is discontinued for a period of six months;

    1. The installation of a new mobile home or any replacement of the existing mobile home shall comply with the eligibility and compatibility criteria established under this chapter.
  • E. On property located in an A-2, R-A, R-1, R-2, or R-3 district for temporary residential purposes when constructing a dwelling on the same property, as allowed under Chapter 21.100 .

  • F. On property located in an R-2, R-3, H-1, C-1 or C-2 district following approval of a use permit for a mobile home park by the planning commission pursuant to Chapter 21.96 .

(Ord. CS 106 §14, 1984; Ord. CS 738 §§1—7, 2000; Ord. CS 1290 §19, 2021; Ord. CS 1408, 12/9/2025)

§ 21.72.030. Nonconforming uses.

Any mobile home which on October 19, 1973, had a valid zoning use permit, mobile home permit, or variance, shall become a valid nonconforming use under the provisions of Chapter 21.80 . This section shall not be applicable to mobile homes for which such a permit had not been secured or for which a permit had expired prior to such date.

(Ord. CS 106 §14, 1984)

§ 21.72.040. Effect of noncompliance.

Failure to comply with all applicable federal, state and county regulations with respect to transportation, location, and occupancy of the mobile home shall invalidate any approval obtained pursuant to this chapter.

(Ord. CS 106 §14, 1984)

§ 21.72.050. Expiration of permits.

If the required site permits, installation permits, and any other required permits are not obtained within three months, an accessory mobile home permit approved pursuant to this chapter shall automatically expire.

(Ord. CS 106 §14, 1984)

§ 21.72.060. Reapplication waiting period.

No application for a mobile home permit which has been denied wholly or in part by the director of planning and community development, or the planning commission or the board of supervisors on appeal, shall be resubmitted for a period of one year from the date the order of denial became final, except on grounds of new evidence or proof of changed conditions found to be valid by the planning commission or the board of supervisors, whichever issued the order of denial. (Ord. CS 106 §14, 1984)

§ 21.72.070. Mobile homes in Historical Site District.

Mobile homes located in the Historical Site District shall comply with standards listed in Chapter 21.44 .

(Ord. CS 1408, 12/9/2025)

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Contents — Stanislaus County Zoning Code
Stanislaus County Zoning Code
  1. Title 21 — Zoning
    Overview
    1. Chapter 21.04 — COMPREHENSIVE PLAN
    2. Chapter 21.08 — GENERAL PROVISIONS
    3. Chapter 21.16 — DISTRICTS GENERALLY
    4. Chapter 21.20 — GENERAL AGRICULTURE DISTRICT (A-
    5. Chapter 21.24 — RURAL RESIDENTIAL DISTRICT (R-A)
    6. Chapter 21.28 — SINGLE-FAMILY RESIDENTIAL DISTRICT (R-1)
    7. Chapter 21.32 — MEDIUM DENSITY RESIDENTIAL DISTRICT (R-2)
    8. Chapter 21.36 — MULTI-FAMILY RESIDENTIAL DISTRICT (R-3)
    9. Chapter 21.38 — SPECIFIC PLAN DISTRICT (S-P)
    10. Chapter 21.40 — PLANNED DEVELOPMENT DISTRICT (PD)
    11. Chapter 21.42 — PLANNED INDUSTRIAL DISTRICT (PI)
    12. Chapter 21.44 — HISTORICAL SITE DISTRICT (HS)
    13. Chapter 21.48 — HIGHWAY FRONTAGE DISTRICT (H-1)
    14. Chapter 21.52 — NEIGHBORHOOD COMMERCIAL DISTRICT (C-1)
    15. Chapter 21.56 — GENERAL COMMERCIAL DISTRICT (C2)
    16. Chapter 21.58 — MIXED-USE DISTRICT (M-U)
    17. Chapter 21.60 — INDUSTRIAL DISTRICT (M)
    18. Chapter 21.61 — INDUSTRIAL BUSINESS PARK (IBP)
    19. Chapter 21.62 — LIGHT INDUSTRIAL (LI)
    20. Chapter 21.64 — LIMITED INDUSTRIAL DISTRICT (LM)
    21. Chapter 21.66 — SALIDA COMMUNITY PLAN DISTRICT
    22. Chapter 21.68 — ADULT BUSINESSES
    23. Chapter 21.70 — URBAN SERVICE DISTRICT (US)
    24. Chapter 21.72 — MOBILE HOMES
    25. Chapter 21.74 — ACCESSORY DWELLINGS
    26. Chapter 21.76 — OFF-STREET PARKING
    27. Chapter 21.80 — NONCONFORMING USES
    28. Chapter 21.82 — DENSITY BONUS FOR AFFORDABLE HOUSING
    29. Chapter 21.84 — VARIANCES
    30. Chapter 21.86 — REASONABLE ACCOMMODATION
    31. Chapter 21.88 — SURFACE MINING AND RECLAMATION
    32. Chapter 21.89 — TRUCK PARKING FACILITIES
    33. Chapter 21.90 — PRODUCE STANDS AND PRODUCE MARKETS
    34. Chapter 21.91 — COMMUNICATION FACILITIES
    35. Chapter 21.92 — RACING HOMING PIGEONS
    36. Chapter 21.94 — HOME OCCUPATIONS
    37. Chapter 21.96 — USE PERMITS
    38. Chapter 21.100 — STAFF APPROVAL PERMITS
    39. Chapter 21.102 — LANDSCAPE AND IRRIGATION STANDARDS
    40. Chapter 21.104 — AMENDMENT AND REVOCATION OF PERMITS
    41. Chapter 21.108 — ORDINANCE AMENDMENTS
    42. Chapter 21.112 — APPEALS
    43. Chapter 21.118 — 30-YEAR LAND USE RESTRICTION

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