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Earlier editions: 2026-09

Title 15 — BUILDINGS AND CONSTRUCTION›Chapter 15.40 — MOBILEHOMES

Napa County Municipal Code Art. I Mobilehomes and Trailers

Napa County Municipal Code · 2026-10 edition · updated 2026-10-04 · Napa County

Cite as: Napa County Municipal Code Article I · Text as of 2026-10-04

15.40.010 - Definitions.

For the purposes of this chapter, the following words and phrases are defined and shall be construed as hereinafter set out, unless it shall be apparent from the context that a different meaning is indicated.

"Building department" means the building division of the planning, building and environmental services department of Napa County.

"CCR" means the California Code of Regulations.

"Dead storage" means the maintaining of a mobilehome on any land where the mobilehome is not used for occupancy or business purposes. The connection of any utility or service connection, such as electrical, water, gas or sewage, to the mobilehome shall be prima facie evidence that the mobilehome is being used for habitation or business purposes.

"Farm labor trailer" means any mobilehome or mobilehomes used for housing or shelter of persons on a seasonal basis which is located either (a) on the premises of a farm where such persons are bona fide employees of such farm, or (b) in a permitted farmworker center.

"Health officer" means the county director of environmental health.

"HSC" means the California Health and Safety Code.

"Mobilehome" means a mobilehome as defined in HSC Section 18008, a manufactured home as defined in HSC Section 18007, a multiple family manufactured home as defined in HSC Section 18008.7, and a recreational vehicle as defined in HSC Section 18010.

"Mobilehome park" means any tract of land where two or more lots are rented or leased, held out for rent or lease, or were formerly held out for rent or lease and later converted to a subdivision, cooperative, condominium, or other form of resident ownership, to accommodate manufactured homes, mobilehomes, or recreational vehicles used for human habitation.

"Planning commission" means the Planning Commission of the County of Napa.

Exceptions & meaning →

15.40.020 - Location restrictions—Dead storage or temporary use permit.

A. It is unlawful for any person, firm or corporation to keep any mobilehome on any land situated in the county other than in an approved mobilehome park, unless such mobilehome is in dead storage or an administrative permit has been issued therefore, pursuant to the provisions of Section 18.126.060 of this code.

B. A trailer or mobilehome in dead storage shall not be stored in any front or side yard setback required by this chapter, or any applicable county ordinance or state law, nor shall any such vehicle be parked upon any public or private street for a period in excess of forty-eight hours. When in dead storage, all trailers and similar vehicles shall meet the minimum requirements of the state, and no person shall remove any tire or wheel from a mobilehome, whether such or similar vehicle is used for occupancy, business or dead storage, except for the purpose of making temporary repairs, nor shall any foundation be placed under a mobilehome or similar vehicle.

Exceptions & meaning →

15.40.030 - Seasonal housing for farmworkers.

Except as provided in Section 18.104.295:

A. A permitted farm labor trailer may be occupied for not more than ninety consecutive days, and for not more than one hundred twenty days in any calendar year.

B. A temporary use permit for a farm labor trailer issued pursuant to this chapter that is "farmworker housing" as that term is defined by the Zoning Ordinance (Title 18 of this code) may be issued for up to a ten-year period and may be renewed pursuant to then-current requirements of this code.

Exceptions & meaning →

15.40.040 - Enforcement authority.

The planning commission, the building department and the health officer shall enforce the provisions of this chapter jointly and in such a manner and as expeditiously as possible to prevent duplicating each other's services.

Exceptions & meaning →

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