Buying Land in Arlington County, Virginia

Why Arlington does not fit the rest of this site's framework

Most of the county-level pages on this site are written for someone evaluating raw or rural acreage -- farmland, recreational land, a homestead site, a subdividable tract. Arlington County does not fit that picture, and this page says so directly rather than stretching to find a rural-land angle that isn't really there. Arlington is the smallest self-governing county in the United States by land area, sitting directly across the Potomac River from Washington, DC, and its 2020 Census population of 238,643 -- at a density of roughly 9,375 people per square mile -- reflects a jurisdiction that is essentially entirely urbanized and suburbanized.

There is no meaningful unincorporated rural land left in Arlington, and no agricultural zoning district comparable to the A-1, A-5, or similarly named districts found in most other Virginia counties covered on this site. If your goal is buying acreage to farm, homestead, or hold as recreational land, a neighboring or nearby more rural Virginia county is almost certainly a better fit for that goal than Arlington.

Zoning and land use: entirely urban and suburban

The Arlington County Zoning Ordinance (ACZO) governs the use and development of all land in the county, and it has been amended repeatedly since zoning was first adopted in 1930, with the most recent comprehensive version effective January 12, 2022. Its districts run from dense mixed-use and commercial corridors near the county's Metro stations to single-family and multifamily residential neighborhoods -- there is no rural-residential or agricultural tier in that structure, because there is essentially no rural land left to zone that way.

Arlington does run an Urban Agriculture program, and the historic Reevesland site is documented as the location of the county's last operating dairy farm before that use ended -- a genuine piece of the county's agricultural past, but a marker of how completely that land use has receded rather than evidence of an ongoing rural land market. Urban agriculture in this context means small-scale community gardens and similar uses within an urban zoning framework, not farmland acquisition.

Septic and utilities: a residual program, not the default

Because nearly the entire county is served by public water and sewer, septic systems are the exception rather than the rule in Arlington -- a sharp contrast with most of the rural Virginia counties covered on this site, where Virginia Department of Health (VDH) septic and well permitting is the default path to a buildable home site. Arlington's own Environmental Health division administers what functions as a residual septic program for the small number of properties still on individual systems, working in coordination with the state framework described on our Virginia state page rather than replacing it entirely.

If you are specifically evaluating an older Arlington property that happens to still have a septic system rather than a connection to public sewer, treat that as an unusual situation worth a direct call to the county's Environmental Health division rather than something to assume works the same way it would in a rural county.

The real live zoning question: Missing Middle redevelopment

If anything in Arlington resembles a genuine land-buying decision, it's this: the county's 2023 Expanded Housing Options ("Missing Middle") ordinance allows duplexes, triplexes, and quadplexes to be built on lots previously zoned exclusively for single-family homes, which changes the redevelopment math on an existing Arlington lot far more than the underlying single-family district name alone suggests. That ordinance has been in continuous litigation since it passed -- a 2024 circuit-court ruling struck it down, a June 2025 appeals-court ruling reinstated it, and the Virginia Supreme Court agreed in May 2026 to review the case, with EHO permitting continuing in the meantime. See our dedicated zoning standalone for the current, actively evolving legal status before relying on EHO eligibility as part of any purchase decision.