Washington County, AR
Zoning in Washington County, Arkansas
Washington County's zoning picture splits sharply along a city/county line: Fayetteville has actively rewritten its own code, most notably a 2021 ordinance opening duplex construction to any residential lot, while unincorporated county land still runs under Arkansas's much lighter, county-optional framework. Here's what that split means for a parcel here.
This page covers what's specific to Washington County. For the general explanation, see the national guide.
Fayetteville's 2021 duplex ordinance, and why it drew national attention
In 2021, the City of Fayetteville passed an ordinance permitting duplex construction on any residential lot citywide, regardless of whether that lot had previously been zoned for single-family use only. The move was part of a broader, closely watched national trend of cities loosening exclusionary single-family zoning to allow more housing types -- sometimes called "missing middle" reform -- and Fayetteville's version was notable for applying the change broadly rather than limiting it to a narrow pilot area or overlay district.
For a buyer evaluating an in-city residential lot, this means the underlying zoning designation may permit more density than an older listing description or a pre-2021 comparable sale would suggest. It's a genuine, city-specific policy shift rather than a general statewide trend -- most Arkansas municipalities have not made a comparable change -- so don't assume it applies anywhere else in the state, or even to every parcel inside Fayetteville without checking the current code against the specific lot.
A sharp contrast with unincorporated county zoning
Outside Fayetteville's city limits (and those of the county's other incorporated towns), Washington County's unincorporated land is governed by Arkansas's ordinary county-optional zoning framework, which tends to be considerably lighter than an actively managed city code. That contrast matters more here than in a typical rural Arkansas county specifically because Fayetteville has been an unusually active participant in zoning policy debates, meaning the city and county sides of the same market can diverge meaningfully on what's buildable and at what density.
For a parcel near, but outside, Fayetteville's city limits, it's worth checking not just current zoning but any pending annexation, since annexed land typically becomes subject to the city's own code (including whatever the current duplex/density rules are at that time) rather than the lighter county framework it may have operated under previously.
What to check before buying in Washington County
- Confirm whether the parcel sits inside Fayetteville (or another incorporated city) or in unincorporated county territory -- this determines which zoning authority and code actually applies.
- For an in-city Fayetteville lot, get the current zoning designation and confirm directly with the city's Development Services division exactly what the 2021 duplex ordinance and any subsequent amendments permit on that specific lot today.
- For unincorporated county land, confirm with the Washington County Planning Department whether any county zoning or subdivision regulation applies, since Arkansas doesn't require it and coverage can be partial.
- Ask about any pending or recent annexation affecting the parcel, since annexation into Fayetteville changes the applicable zoning framework.
- If building density or a duplex/multi-unit plan is part of your intent, get the current code requirements in writing rather than relying on a real estate listing's characterization of the zoning.
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Connect with a local land specialistSources
- City of Fayetteville, Arkansas — City of Fayetteville, AR (accessed 2026-09)
- Fayetteville, Arkansas — Wikipedia (accessed 2026-09)
- Arkansas Code Title 14, Subtitle 2, Chapter 17 -- County Planning — Arkansas Code (via Justia) (accessed 2026-09)
Last reviewed 2026-09