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Title 18 — BUILDING REGULATIONS

§ 18.12

Mendocino County Building Code · 2026-07 edition · updated 2026-09-02 · Mendocino County

Sec. 18.12.010 - Purpose and Scope.

The purpose of this Chapter is to provide rules and regulations for the erection, construction and enlargement, alteration, repair, removal, moving, conversion, occupancy, equipment, use, height, area and maintenance of all residential, commercial and industrial type buildings or structures within the unincorporated area of this County except those structures regulated by Chapter 18.20 hereof. Regulations

imposed by this Chapter are intended to be equal to those imposed by Part 1.5, Division 13, of the Health and Safety Code.

(Ord. No. 465, Sec. 201, adopted 1965.)

Sec. 18.12.020 - Regulations.

Pursuant to and for the purpose and scope of this Chapter as declared in Section 18.12.010, supra, the County of Mendocino adopts and incorporates into the Mendocino County Code by reference, and as having the full legal effect as if their respective contents were set forth verbatim herein, each of the uniform codes referred to in Section 18.04.040, supra.

(Ord. No. 465, Sec. 201, adopted 1964, and amended by Ord. No. 819, adopted 1971.)

Sec. 18.12.030 - Exemption for Agricultural Buildings.

(A)

Exemption. The regulations imposed by Section 18.12.020, supra, except for Sections 203 and 204 of the Uniform Building Code, 1991 Edition, and any other provisions of any of the uniform codes adopted by this Title that pertain to unsafe or dangerous buildings, shall not apply to any agricultural building for which a written exemption, referred to as an agricultural building exemption, has been secured from the Chief Building Inspector or his/her designee.

(B)

Definition. For purposes of this Title, an "agricultural building," shall be defined as any building which is designed and constructed primarily for use in housing livestock, poultry, hay, or grain and which is located on a parcel of land that is currently zoned or primarily used for agriculture. None of the following structures shall be considered an agricultural building:

(1)

Any building which has workers or customers present, bathrooms, assemblages, display of products, packaging or processing, sales, work stations or storage warehousing of processed products in quantity, within said building.

(2)

Any building located on a parcel of land under one (1) acre in size.

(3)

Any building, any part of which is within fifty (50) feet of a property line regardless of the size of the parcel.

(4)

Any building, any part of which is within forty (40) feet of a residence.

(5)

Wineries, sawmills, dairies, commercial greenhouses, warehouses and firewood storage structures.

(6)

An addition to any structure or building not designated "Agricultural Exempt."

(C)

Standards.

(1)

Agricultural buildings located on parcels of one (1) to ten (10) acres in size are limited to six hundred (600) square feet and fifteen (15) feet in height. Agricultural buildings located on parcels in excess of ten (10) acres have no maximum square footage restrictions, however, the height of a structure shall not exceed twenty-five (25) feet.

(2)

The ground floor of an agricultural building shall be on grade and must be concrete, dirt or asphalt concrete.

(D)

Standard permits and inspections are required for electrical and plumbing installations. Electrical

installations are limited to one hundred (100) amp services. Plumbing installations are limited to exterior hose bibbs and a clean up sink (commercial or residential rated). Mechanical installations are prohibited. Waste systems for plumbing installations require approvals prior to issuance from the Division of Environmental Health.

(E)

Where plastic panels are used as skylights, the panels shall comply with Chapter 52 of the 1991 Uniform Building Code.

Exiting from agricultural exempt structures shall be arranged so that no point in the building is more than three hundred (300) feet from an exit. There shall be one exit for each fifteen thousand (15,000) square feet of building area.

(F)

Application. A person desiring an agricultural building exemption shall file with the Planning and Building Services Department, a written application containing the following information:

(1)

Name and address of applicant and of the owner of the land;

(2)

Description of the building or structure to be exempted;

(3)

Description of the present and primary use of the land;

(4)

A precise plot plan showing all buildings, structures, property lines, streets and roads;

(5)

A verified statement in writing signed by the owner of the land stating that the building meets the definition of an agricultural building in paragraphs (B) and (C);

(6)

Such further information as the Planning and Building Services Department may require;

(G)

The application for an agricultural building exemption shall be accompanied by a fee as established by resolution of the Board of Supervisors:

(H)

Permit Expiration. Permit is valid for a maximum of three (3) years.

(Ord. No. 819, adopted 1971; Ord. No. 1652, adopted 1976; Ord. No. 3054, adopted 1978; Ord. No. 3389, adopted 1982; Ord. No. 3828 (part), adopted 1992.)

Sec. 18.12.040 - Timber Processing Plants.

Repealed by Ord. No. 3828 (part), 1992.

CHAPTER 18.14 - RELOCATION ASSISTANCE TO TENANTS EVICTED DUE TO UNSAFE OR HAZARDOUS CONDITIONS

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