What are the tiny house laws in West Virginia?

Your tiny house can be legal in West Virginia, depending on its type and location^2,5. Local governments enforce the State Building Code where they adopt it². County and municipal land-use ordinances can also apply to HUD-compliant factory-built homes⁵. Ask the local building office to classify your proposed home before you order it.

West Virginia accepts federally certified standards for HUD-compliant factory-built homes under state law⁵. Local design standards and review procedures must apply equally to factory-built and other single-family constructed homes⁵. Applicable flood-zone installation rules still apply to those homes⁵. Ask which approvals you need for the structure, its installation and residential use.

We could not confirm a statewide minimum total dwelling size in West Virginia. The State Building Code applies where a county or municipality adopts it, and that government enforces it². Ask the local building and zoning offices for your parcel's floor-area rule. Ask which code requirements apply to your proposed layout, too.

A small storage shed exemption does not let you use the shed as a residence⁶. West Virginia's inspection exemption covers residential storage structures no larger than 200 square feet, without plumbing or electrical connections⁶. You must use the structure only for residential storage⁶. Ask the building office to review your intended dwelling use before you buy a shed to convert.

West Virginia's municipal accessory-dwelling protection applies to ordinances in effect on or after January 1, 2027⁴. The law protects at least one qualifying accessory dwelling on a parcel with a single-family home inside a municipality⁴. It does not give you the same municipal right for a standalone rural dwelling⁴.

Your attached or detached accessory unit cannot exceed 75 percent of the main home's gross floor area or 1,000 square feet, whichever is less⁴. Municipal application-review fees can reach $250, plus usual building fees⁴. You still need to meet applicable building, fire and other regulatory requirements⁴. Before you rely on this option, ask the municipality about independent access, cooking and sanitation facilities, and water and sewer approval⁴.

Your West Virginia tiny house needs an approved way to handle sewage. You need a written permit before installing a new septic system or modifying an existing system³. Have your application, plans and specifications reviewed before installation³. Call the West Virginia On-Site Sewage Program listed above for help with the rules and technical details⁷. Ask how to apply locally and what you would pay for your proposed system.

Under West Virginia sanitation law, you also need written approval before installing or establishing an off-grid disposal method⁸. A municipality or board of health can require sewer connection for qualifying properties along a sewer line, changing your plan⁹. You have 30 days to connect after municipal notice⁹. Ask about sewer service before you commit to septic.