Buying Land in the Northwest Hills Planning Region, Connecticut

What the Northwest Hills Planning Region is, and which towns make it up

The Northwest Hills Planning Region is Connecticut's Census-designated county-equivalent for the state's northwestern corner, one of the state's 9 planning regions recognized as statistical counties since 2022 (see the Connecticut state hub for the full mechanism behind why Connecticut uses planning regions rather than traditional counties at all). It is coterminous with the service area of the Northwest Hills Council of Governments (NHCOG) and comprises 21 towns: Barkhamsted, Burlington, Canaan, Colebrook, Cornwall, Goshen, Hartland, Harwinton, Kent, Litchfield, Morris, New Hartford, Norfolk, North Canaan, Roxbury, Salisbury, Sharon, Torrington, Warren, Washington, and Winchester (whose village center is Winsted).

This roster is worth a specific note: it does not track the old, traditional Litchfield County line exactly. Burlington and Harwinton sit in this planning region despite having historically been part of Hartford County, while several towns that were historically part of Litchfield County -- Bethlehem, Bridgewater, New Milford, Plymouth, Thomaston, Watertown, and Woodbury -- fall instead into the separate Naugatuck Valley or Western Connecticut planning regions. If you're used to thinking in terms of the old 8 counties, don't assume "Litchfield County" and "Northwest Hills Planning Region" are simply two names for the same 26 towns -- they're not.

At roughly 787 square miles and about 112,500 residents at the 2020 Census, this is Connecticut's largest planning region by land area and one of its least densely populated -- genuinely the state's most rural, hilly, and forested corner, part of what's commonly called the Litchfield Hills. Working farms, large private forest and conservation holdings, and a real second-home/vacation-property market (long popular with buyers from the New York metro area) sit alongside the region's small town centers. For a raw-land buyer, this is the part of Connecticut where sizable rural acreage is most realistically available -- but also where large private conservation holdings genuinely reduce what's on the market (see below).

Zoning is town-by-town under CGS Chapter 124 -- name a few towns as examples, not a regional office

As explained on this project's Connecticut state hub, zoning statewide runs entirely through each town's own Planning and Zoning Commission (or separate Planning Commission and Zoning Commission) under Connecticut General Statutes Chapter 124 -- that mechanism is not repeated here. NHCOG is not a zoning authority and does not substitute for it. A parcel in Kent is zoned entirely by Kent's own Planning and Zoning Commission; a parcel in Litchfield is zoned entirely by Litchfield's Land Use Department and its Planning & Zoning Commission; a parcel in Washington or Salisbury is governed by that town's own separate zoning regulations and district map. Two towns bordering each other in this region -- say, Cornwall and Goshen, or Norfolk and Colebrook -- can and do apply materially different minimum lot sizes and permitted-use lists to otherwise similar rural land.

For a land buyer evaluating a specific parcel, this means contacting that town's own Planning and Zoning office directly -- there is no NHCOG zoning desk, no regional planning department, and no fallback county office. Each of this region's 21 towns also runs its own inland wetlands agency under the statewide framework described on the state hub, which matters here in particular given how much of the region's land is genuinely wet, wooded, or stream-crossed terrain.

Septic goes through a genuinely fragmented mix of town and multi-town health districts

Septic permitting in Connecticut runs through a local director of health under the state's Public Health Code (see the state hub for the full mechanism), and in this region that authority is split across several overlapping multi-town health districts rather than one clean regional structure. The Torrington Area Health District (TAHD) covers the largest share -- this region's Canaan, Cornwall, Goshen, Harwinton, Kent, Litchfield, Morris, Norfolk, North Canaan, Salisbury, Torrington, Warren, and Winchester (13 of the region's 21 towns) -- though TAHD's service area also reaches several towns outside this region (Bethlehem, Middlebury, Plymouth, Thomaston, and Watertown) plus the Boroughs of Bantam and Litchfield.

Two more of this region's towns are served by districts based partly outside it: the Housatonic Valley Health District covers this region's Sharon and Washington (its other member towns -- New Milford, Oxford, Southbury, and Woodbury -- sit in the Western Connecticut and Naugatuck Valley planning regions instead), and the Newtown Health District covers this region's Roxbury (its other two member towns, Newtown and Bridgewater, sit in the Western Connecticut Planning Region, also covered in this batch). That leaves 5 of this region's towns -- Barkhamsted, Burlington, Colebrook, Hartland, and New Hartford -- not confirmed in this research pass to belong to any named multi-town district; given their small size, they most likely run individual town health departments, but verify directly rather than assume.

NHCOG's real, limited coordinating role, and this region's conservation-land footprint

The Northwest Hills Council of Governments (NHCOG) is the voluntary regional body that coordinates planning, transportation, and shared services across this region's 21 towns, guided by their chief elected officials. NHCOG's actual functions -- regional transportation planning, shared GIS and mapping resources, and regional emergency-preparedness coordination -- are real and useful for understanding the area, but none of them include zoning, septic permitting, or wetlands authority. NHCOG's own site is nhcogct.gov; it is the right place to understand regional context, not the right place to check a specific parcel's permitted uses.

One more factor worth knowing before assuming raw acreage is freely available here: this region hosts two of Connecticut's largest private land-conservation holdings, the roughly 4,034-acre White Memorial Foundation in Litchfield and the Northwest Connecticut Land Conservancy (Connecticut's largest land trust, protecting roughly 12,500 acres regionally, accredited and headquartered in Kent). Neither is a government body, but a parcel bordering or historically part of either holding may carry a recorded conservation easement restricting its use regardless of underlying zoning, and a recorded easement is a separate thing from a PA 490 farm/forest/open-space tax classification -- confirm both questions separately against town land records and the specific holder before assuming a wooded lot's full development potential or tax treatment.