Special Structures

If you're considering building a unique, owner-occupied residence in a rural area without public utilities, our Modified Limited Density Owner-Built Rural Dwelling Regulations (AOB) may suit your needs. Ideal for those looking to creatively manage their construction projects, these permits are not for properties with public water or sewer services, nor can the homes be used for short-term rentals. This permitting route emphasizes flexibility in design while maintaining safety standards, offering a self-reliant approach to rural living. See our AOB Webpage for more info.

Agricultural buildings, as defined by the Uniform Building Code, are structures meant for storing farm-related items like implements, hay, and livestock, but not for human habitation, employment involving processing agricultural products, or public use. To qualify for an agricultural exemption, such buildings must be on agriculturally zoned land. Residential accessory greenhouses up to 400 square feet, used for growing food or personal-use cannabis, can be constructed without an ag-exemption on residential parcels as accessory to an existing home, with a limit of two per parcel. See our Agriculture Exempt (Ag-Exempt) webpage for more information.

Manufactured homes are permitted as residences primarily within designated manufactured and special occupancy parks, or public camping areas, in accordance with Humboldt County Code 314-81 and the Health and Safety Code of California. They may also be located outside these parks in specific zoning districts where such use is authorized. When installed outside of parks, manufactured homes must comply with standard building and zoning regulations, which include being enclosed with skirting at ground level, and, depending on the home’s manufacture date, may require attachment to a permanent foundation or meet other specific safety standards. See our Manufactured Home webpage for more information.

Recreational vehicles (RVs) are only allowed within manufactured home parks, special occupancy parks, and public camping areas as per Humboldt County Code 314-81 and the Health and Safety Code of California. Additionally, special permits can be issued for temporary use of an RV as a residence or office in specific circumstances, such as during construction projects. These permits are typically valid for six months, with possible extensions if substantial progress is shown. RVs used under these permits must not be connected to permanent structures, and must be removed upon permit expiration to avoid being classified as public nuisances. See our Recreation Vehicles (RV's) page for more information.

In Humboldt County, all swimming pools deeper than 18 inches must be enclosed by a durable, six-foot fence with gaps no wider than two inches, except for doors or gates. These gates must have self-closing, self-latching devices positioned at least 4 feet 9 inches above ground. Additional safety features required include exit alarms, approved pool covers, and water immersion alarms. Electrical installations must comply with the National Electric Code. Final approval of pool construction is contingent on meeting these safety standards. See our Swimming Pools, Tubs, and Spas page for more information.