Buying Land in Virginia: The State-Level Rules Behind Every County

Who actually issues your septic and well permit

In Virginia, onsite sewage (septic) and private well permitting is a state government function, not a county one. The Virginia Department of Health (VDH) -- through its Division of Onsite Sewage and Water Services and a statewide network of local health districts -- reviews the site, approves the system design, and issues the construction permit. Those local health departments are staffed as VDH field offices, operating in cooperation with the city or county they serve rather than as employees of that county government.

For a typical single-family home discharging less than 1,000 gallons per day, the health department issues the permit; anything larger, or anything other than a single-family home, falls under the Department of Environmental Quality (DEQ) instead. A combined well-and-septic construction permit is generally valid for 18 months, so timing your health department application matters if your closing or construction schedule slips.

The practical upshot: when you call about septic feasibility on a Virginia parcel, you are calling a state agency office, and the underlying regulations are the same statewide -- but scheduling, site-visit turnaround, and local soil conditions still vary a great deal district to district. See our national guide to septic systems for the general process.

Water rights: riparian doctrine, plus a permit threshold worth knowing

Virginia is a riparian-rights state, not a prior-appropriation state. Under the Code of Virginia, the right to use surface water generally attaches to land bordering a watercourse, and a riparian owner is entitled to reasonable use of that water so long as it does not unreasonably interfere with other riparian owners on the same stream. Groundwater is treated differently under a separate, older body of common law that distinguishes defined underground channels from ordinary percolating groundwater.

That underlying property right is layered with a state permitting program: DEQ requires a Virginia Water Protection Permit for most nontidal surface water withdrawals averaging more than 10,000 gallons per day in a month (a higher, roughly one-million-gallon-per-month threshold applies to agricultural withdrawals). If you are buying land specifically for irrigation, aquaculture, or another water-intensive use, that threshold -- not just the general riparian right -- is what determines whether you need a state permit before you can draw the volume you are planning on.

Zoning is a local choice, not a state mandate

The Virginia Zoning Enabling Act (Title 15.2, Chapter 22 of the Code of Virginia) grants localities the authority to adopt zoning -- the statute's language is permissive ("any locality may"), not mandatory. In practice, essentially every Virginia county, city, and town has adopted some form of zoning ordinance, but each one wrote its own, and the same district name (say, "Agricultural" or "Rural Residential") can carry a different allowed-use list from one county to the next.

Because zoning is entirely locally drafted under the state framework, there is no substitute for calling the specific county's planning or zoning office and asking about your intended use directly -- see our national guide to zoning for the general process of how that conversation should go.

Right-to-farm protection

Virginia's Right to Farm Act (Code of Virginia § 3.2-302) provides that an agricultural operation is not a public or private nuisance if it is run in substantial compliance with applicable best management practices and law at the time of the alleged nuisance, and it voids any local ordinance that would otherwise treat that operation as a nuisance. The protection does not extend to nuisances caused by negligent or improper operation, and it does not apply against someone whose nuisance claim predates a material change in the farm's operation.

Agritourism liability law

If your land plan involves a farm stand, corn maze, u-pick operation, or similar venture, Virginia's Agritourism Activity Liability law (Code of Virginia § 3.2-6401 and § 3.2-6402) limits an agritourism professional's liability for a participant's injury or death resulting from the inherent risks of the activity -- but only if the required warning notice is posted, in black lettering at least one inch tall, at the entrance to the property and at the site of the activity itself. The limitation does not cover injuries caused by the operator's own negligence or willful misconduct.

Manufactured and modular homes

Virginia's Department of Housing and Community Development (DHCD) regulates two legally distinct categories that buyers often lump together. HUD-code manufactured homes are federally certified and regulated in Virginia under the state's Manufactured Home Safety Regulations; "industrialized buildings" (factory-built modular homes built to the state building code rather than the federal HUD code) fall under a separate set of DHCD regulations and are explicitly not treated as manufactured homes under state law.

Taxation follows a similar fork: a manufactured home installed in compliance with the Uniform Statewide Building Code is assessed alongside the real property it sits on, using the same methods as any other improvement. A manufactured home that has not been affixed to real estate is instead taxed as a separate class of tangible personal property -- which matters for financing, since a lender treats "real property" and "personal property" collateral very differently. Moving a manufactured home also requires a local permit and, generally, that property taxes on it be current first.

What this page does not tell you

Everything above is the state-level layer. The specifics that actually make or break a given parcel -- minimum lot size, exact setback distances from wells and property lines, septic system design approval for that soil, and permit fees -- are set locally, county by county (or, for a handful of programs, city by city), and are not standardized across Virginia. Once you have a specific county in mind, confirm those numbers directly with that county's health department and planning office; see our national guides to perc tests, septic systems, and zoning for how those conversations typically go.