Buying Land in Connecticut: There Is No County Government to Call

Connecticut has no county government at all -- zoning is entirely a town matter

Connecticut is a genuine outlier nationally: the General Assembly abolished all county government effective October 1, 1960. The state's 8 counties -- Fairfield, Hartford, Litchfield, Middlesex, New Haven, New London, Tolland, and Windham -- still exist as geographic labels and judicial-district boundaries, but they have no government, no staff, no budget, and no regulatory authority of any kind. There is no county planning department, no county zoning office, and no county health department to call, because there is no county government behind any of those names.

Zoning authority instead sits entirely with each of Connecticut's 169 towns and cities, under the state's zoning enabling act, Connecticut General Statutes Chapter 124 (CGS Sections 8-1 and following), adapted from the early-20th-century model Standard State Zoning Enabling Act. A town establishes its own Zoning Commission (sometimes combined with the Planning Commission as a joint Planning and Zoning Commission), which divides the municipality into districts and regulates the use of land and buildings within them by local ordinance. Since 2022, the U.S. Census Bureau has recognized Connecticut's 9 regional planning areas as statistical "county-equivalents," and the state's regional Councils of Governments (COGs) coordinate planning across town lines on things like transportation -- but COGs are voluntary coordinating bodies, not governments, and they don't hold zoning authority themselves. For a land buyer, the only correct call is the specific town's Planning and Zoning office; there is no fallback county authority to check with if the town doesn't answer.

Septic permitting runs through a town or district health department under the state Public Health Code -- never a county

Connecticut's Public Health Code (Regulations of Connecticut State Agencies, Sections 19-13-B100a and following, administered by the Connecticut Department of Public Health) sets the statewide technical standards for subsurface sewage disposal -- soil testing, system sizing, and setbacks. But because counties don't function, the office that actually issues the permits is the local director of health: either a single town's health department, or -- since many smaller Connecticut towns are too small to run their own -- a multi-town health district formed by several towns jointly. No septic system may be constructed, altered, or put into use without an approval to construct and a discharge permit or approval issued by that local director of health.

An ordinary vacant residential lot in Connecticut falls squarely within local health-department jurisdiction under the Public Health Code. Larger design flows shift review up to the state: plans for higher-flow systems require Connecticut DPH approval, and systems above a still-higher design-flow threshold or using alternative treatment technology fall under the Connecticut Department of Energy and Environmental Protection (DEEP) instead. The exact gallons-per-day cutoffs separating these tiers have been adjusted by the legislature over time, so rather than rely on a specific number here, confirm current jurisdiction for a given lot directly with the local health department or district -- what matters for due diligence is knowing that a typical single-family raw-land purchase is a local health department process, not a county or (usually) a state one.

Inland wetlands and, near the shore, coastal management are separate statewide layers -- also enforced locally

The Connecticut Inland Wetlands and Watercourses Act (CGS Chapter 440, Sections 22a-36 through 22a-45), enacted in 1972, requires every one of Connecticut's 169 towns to establish, by ordinance, a local inland wetlands agency -- sometimes the town's Planning and Zoning Commission or Conservation Commission wearing that additional hat, sometimes a separate board. No regulated activity may take place in an inland wetland or watercourse without a permit from that local agency, independent of whatever the town's ordinary zoning regulations allow for the same parcel.

For a coastal parcel, the Connecticut Coastal Management Act (CGS Chapter 444, Sections 22a-90 through 22a-112) adds a further, statutorily defined layer: land within the state's coastal boundary is subject to Coastal Site Plan Review, conducted by the same municipal land-use board or commission that reviews other applications for that parcel, evaluating impacts on coastal resources and water-dependent uses. Anything actually in tidal wetlands or tidal, coastal, or navigable waters is separately regulated directly by DEEP under the state's tidal wetlands and structures/dredging/fill statutes -- a state, not municipal, permit layer that sits alongside the town's coastal site plan review rather than replacing it.

What this means for due diligence

On a Connecticut parcel, confirm zoning and permitted uses with the specific town's Planning and Zoning office -- there is no county fallback, because there is no county government at all. Confirm septic feasibility and permitting with the town's health department or the multi-town health district it belongs to, not a county health department (Connecticut doesn't have one). If any part of the parcel touches a wetland or watercourse, check with the town's inland wetlands agency before assuming what zoning alone allows you to clear or build. And if the parcel is within Connecticut's coastal boundary, budget for a Coastal Site Plan Review from the town's land-use board, plus possible separate DEEP jurisdiction if the parcel reaches tidal water or tidal wetlands.