What are the tiny house laws in Virginia?

Virginia allows tiny dwellings under its building code, subject to local land-use rules¹. You can use Appendix AQ instead of the applicable code requirements for a dwelling of 400 square feet or less¹. That size is the upper limit for this alternative, not a statewide minimum house size¹.

Your local building inspections department enforces Virginia’s Uniform Statewide Building Code². Ask that department to review your design before you order a house¹. Ask the local zoning office whether you can use the parcel for your intended residential purpose¹. Meeting Virginia’s building code does not override local floodplain rules or specified special-use conditions².

Virginia’s bedroom-area rule does not set a minimum size for your entire home³. Each bedroom must have at least 70 square feet under state law³. A bedroom shared by more than one person must have at least 50 square feet per occupant³.

These provisions do not confirm a single statewide minimum total dwelling size for Virginia³. Ask your local building official how room-area rules apply to your layout, especially a sleeping loft¹. Ask the zoning office about any separate dwelling-size rule for your parcel¹. The 400-square-foot Appendix AQ threshold alone does not tell you whether your floor plan qualifies¹.

Calling a wheeled unit a tiny home does not give you permission to live in it in Virginia¹. Virginia’s tiny-house provision covers dwellings built under the building code¹. Local zoning controls how you can use land for housing¹. Ask your building official which code category covers your unit, then ask zoning whether you can live there permanently¹.

Virginia county RV answers cover different situations, including temporary camping, approved campgrounds and flood-hazard areas⁶. A campground allowance does not establish your right to live in an RV on an ordinary private lot⁶. Start with the Virginia RV-living list, then check which situations the local rule covers⁶.

Virginia’s statewide accessory-dwelling law takes effect July 1, 2027⁵. Your accessory dwelling must share a lot with a proposed or existing primary residence and have independent living facilities⁵. This option covers an additional home on a residential lot, rather than a stand-alone house on vacant land⁵.

Virginia’s law provides for an ADU permit costing no more than $500, plus applicable building, inspection or site fees⁵. You still need to meet building-code, water, sewer and septic requirements⁵. The law excludes localities that adopted an ADU ordinance before January 1, 2026⁵. Private declarations and contracts also remain relevant to your project⁵. If you are planning now, ask your local zoning office which ordinance applies to your lot and proposed installation date⁵.

You still need to meet sewage-system requirements under Virginia’s tiny-house code provision^1,4. You need a written construction permit before you build, expand or modify an onsite sewage system⁴. You also need an operation permit for systems built after the sewage regulations took effect⁴. Ask your local health department about onsite sewage and private wells⁷.

Before you commit, take the parcel address and your proposed design to the local building official and zoning office¹. Virginia’s DHCD code-official directory helps you find your building official². Ask that office what the building permit costs and what you need to submit for your design¹. Ask the health department about sewage application fees and site requirements before you budget for installation⁷.