Rhode Island
Buying Land in Exeter, Rhode Island
The most rural and least developed of Washington County's inland towns -- Exeter's zoning runs the largest lot minimums of the five towns covered here, its ordinance spells out exactly how much dry, buildable land a lot needs before it counts as buildable at all, and nearly 40% of the town's land sits in a state tax program built around staying undeveloped.
The largest lot minimums of the five Washington County towns covered here
Exeter's zoning ordinance (Town Code Appendix A) sets four residential/rural districts by minimum lot size: RE-2 (2 acres), RU-3 (3 acres), RU-4 (4 acres), and CR-5 (5 acres). The ordinance is explicit about intent, not just numbers -- RE-2 and RU-3 are described as residential and rural development districts, while RU-4 and CR-5 are specifically designed to preserve farming, forestry, conservation, recreation, and rural character. Of the five towns covered on this site, Exeter's baseline runs the largest, consistent with it being described in town planning material as one of the more rural housing markets even within already-rural Washington County -- about 6,568 residents across 57.45 square miles, or roughly 112 people per square mile.
There's also a Planned Village Development Overlay District (PVOD) available for clustered development, but even that carries a minimum aggregate lot size of 10 acres for any newly proposed PVOD district -- underscoring that Exeter's zoning is built around large parcels even where it makes room for a different development pattern.
The wetlands rule: not every acre on paper counts as buildable
The single most concrete, and most easily overlooked, provision in Exeter's ordinance is its buildability threshold: no lot is considered buildable unless it can be shown to have at least 1 acre of contiguous, accessible land that is free of biological wetlands, water bodies, street rights-of-way, and electrical power line easements. That means a 3-acre RU-3 lot that looks like it satisfies the district minimum on a plat map can still fail to qualify as buildable if too much of that acreage is wetland, floodplain, or otherwise encumbered -- the lot-size minimum and the buildability minimum are two separate tests, and passing one does not guarantee passing the other.
For a buyer evaluating raw or lightly developed Exeter land, that makes an actual wetlands delineation and a review of easements and rights-of-way on a specific parcel more important here than a simple acreage count -- confirm buildable acreage with the town's Zoning office and, where wetlands are a live question, with RI DEM's Freshwater Wetlands program (which regulates wetlands directly, statewide) before assuming a parcel that meets district acreage is automatically buildable.
Nearly 40% of the town's land is enrolled to stay undeveloped
Exeter has roughly 14,300 acres -- about 39% of the town's total land, across 267 parcels -- enrolled in Rhode Island's statewide Farm, Forest, and Open Space Act (RIGL Ch. 44-27), a program that assesses qualifying farm, forest, and open land at its current use rather than its development value, in exchange for keeping the land in that use. Of that enrolled acreage in Exeter, over half is classified as forest, about 37% as open space, and roughly 11% as farmland. That 39% figure is genuinely high, and it means a meaningful share of the raw and undeveloped-looking land a buyer might consider in Exeter is likely enrolled.
The consequence for a buyer matters specifically if the plan is to develop enrolled land: withdrawing land from the program or converting it to a disqualifying use triggers a state land-use-change tax, calculated as a declining percentage of the land's fair market value depending on how many years it has been enrolled (from 10% in the first year down to zero after ten years). This is a statewide rule, not an Exeter-specific one, but Exeter's unusually high enrollment share makes it worth actively checking enrollment status for any specific parcel here rather than treating it as an edge case.
Arcadia Management Area and septic/well basics
Exeter shares the roughly 14,000-acre Arcadia Management Area with Richmond, Hopkinton, and West Greenwich -- Rhode Island's largest state-owned recreational tract. Land in Exeter's western reaches can border it directly; the boundary should be confirmed against the state's own mapping.
Septic follows the statewide Rhode Island pattern: RI DEM handles OWTS site evaluation and permitting directly, with no town health department in the loop (see the state hub). Exeter's own Zoning office issues the town's local well-construction permit and the building permit for the served structure, on top of the water-quality testing the RI Department of Health requires at construction and property transfer.
Who to Call Before Buying Land in Exeter
Exeter has no town-level septic or well-water-quality testing department -- RI DEM regulates and permits onsite wastewater (OWTS) and freshwater wetlands directly, statewide, and RI DOH sets private-well testing requirements statewide (see the Rhode Island state hub). Exeter's own Zoning office role is limited to the local well-construction permit, the building permit for the served structure, and the town's own buildability determination under its 1-acre contiguous dry-land rule.
Planning & Zoning
Exeter Planning Department
Zoning district and dimensional-standard questions, comprehensive plan and PVOD procedure, and Planning Board matters.
Building & Permitting
Exeter Zoning Office
Building permit applications, the buildability determination under the town's 1-acre contiguous dry-land rule, local well permit issuance, and Zoning Board of Review procedure.
GIS / Parcel Records
Exeter GIS / Mapping
Pulling a specific parcel's zoning district, wetlands and easement layers relevant to the buildability rule, and Farm/Forest/Open Space enrollment status.
Environmental Health
RI DEM Freshwater Wetlands Program
Wetlands delineation and permitting statewide -- directly relevant to whether a specific Exeter lot clears the town's 1-acre contiguous dry-land buildability threshold.
Roads / Driveway / Access
Exeter Department of Public Works / RIDOT (state roads)
Driveway and access permits for town-maintained roads; a RIDOT Physical Alteration Permit is required instead for any parcel fronting a state-maintained road.
Assessor / Property Tax
Exeter Tax Assessor
Assessed value, Farm/Forest/Open Space (current-use) enrollment status for a specific parcel, and property tax questions.
Recorder / Clerk / Land Records
Exeter Town Clerk
Recorded deed, easement, and plat history for a specific parcel, including any recorded Farm/Forest/Open Space classification.
Septic / Onsite Wastewater
RI DEM Office of Water Resources -- OWTS Program
Septic (onsite wastewater) site evaluation, design/construction approval, and permitting statewide -- a state function, not an Exeter department (see the Rhode Island state hub).
Wells / Private Water
RI Department of Health -- Center for Drinking Water Quality (Private Wells)
Private well water-quality testing requirements at construction and at property transfer, statewide. Exeter's own Zoning office separately issues the local well construction permit.
Other
RI DEM -- Farm, Forest, and Open Space Program
Confirming a specific parcel's Farm/Forest/Open Space enrollment and understanding land-use-change tax exposure before converting enrolled land to a non-qualifying use.
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Get local guidanceSources
- TOWN OF EXETER, RHODE ISLAND CODE OF ORDINANCES APPENDIX A, ZONING ARTICLE I — Town of Exeter, Rhode Island (accessed 2026-09)
- Exeter, RI Zoning Ordinance — Zoneomics (cross-checked against town ordinance) (accessed 2026-09)
- Country Living in Exeter RI: Land, Privacy & Homes — Phipps Realty (accessed 2026-09)
- Exeter, Rhode Island — Grokipedia (cross-checked against RI planning sources for population/enrollment figures) (accessed 2026-09)
- General Laws Chapter 44-27 -- Taxation of Farm, Forest, and Open Space Land — Rhode Island General Assembly (accessed 2026-09)
- The Farm, Forest and Open Space Act — RI Department of Environmental Management (accessed 2026-09)
- Arcadia Management Area — Rhode Island State Parks & Recreation (accessed 2026-09)
- Maps GIS — Town of Exeter, Rhode Island (accessed 2026-09)
Last reviewed 2026-09