Litchfield County siding facts, town by town
Each town links to our roofing page for that town, with its permit, snow load and building official details. “Local historic review” means a district or property adopted by town ordinance under Connecticut law; National Register listing alone does not count.
| Town | Local historic review | Built before 1980 | Design wind | Building dept. |
|---|---|---|---|---|
| Barkhamsted | None adopted | 53.8% | 115 mph | 860-379-1314 |
| Bethlehem | Historic District No. 1 | 58.7% | 120 mph | 203-266-7510 x4 |
| Bridgewater | None adopted | 55.1% | 120 mph | 860-355-4467 |
| Canaan | None adopted; study committee since 2023 | 75.5% | 115 mph | 860-309-7852 |
| Colebrook | Colebrook Center; North Colebrook | 62.4% | 115 mph | 860-379-3359 x201 |
| Cornwall | None adopted | 67.6% | 115 mph | 860-672-0711 |
| Goshen | None adopted | 35.1% | 115 mph | 860-491-2308 x231 |
| Harwinton | Catlin Corners; Center Corners; Samuel Peck House | 71.9% | 120 mph | 860-485-3892 |
| Kent | Flanders | 60.5% | 115 mph | 860-927-4872 |
| Litchfield · siding | Borough of Litchfield; Milton | 69.4% | 115 mph | 860-567-7567 |
| Morris | None adopted | 62.9% | 115 mph | 860-567-7434 |
| New Hartford | Pine Meadow | 56.1% | 115 mph | 860-379-8830 |
| New Milford | Town Hall only; no district | 58.7% | 115 mph | 860-355-6090 |
| Norfolk | Norfolk Historic District | 79.2% | 115 mph | 860-542-6986 |
| North Canaan | None adopted | 70.6% | 115 mph | 860-824-7313 x191 |
| Plymouth | Terryville Waterwheel only; no district | 64.0% | 120 mph | 860-585-4007 |
| Roxbury | Roxbury Historic District | 47.2% | 120 mph | 860-355-2948 |
| Salisbury | Designated properties in Salisbury, Lakeville and Lime Rock | 64.9% | 115 mph | 860-435-5177 |
| Sharon | Sharon Historic District | 67.3% | 115 mph | 860-364-0909 |
| Thomaston | None adopted | 69.1% | 120 mph | 860-283-8411 |
| Torrington | City Hall only; no district | 74.0% | 115 mph | 860-489-2245 |
| Warren | None adopted | 43.1% | 115 mph | 860-868-7881 |
| Washington | Washington Green; Sunny Ridge; Calhoun-Ives Street | 65.7% | 115 mph | 860-868-0844 |
| Watertown | Watertown Historic District | 68.2% | 120 mph | 860-945-5264 |
| Winchester | None adopted | 72.5% | 115 mph | 860-379-3818 |
| Woodbury | Districts No. 1 and No. 2 | 51.9% | 120 mph | 203-263-5717 |
Historic review: town ordinances, commission pages and Preservation Connecticut’s district list, checked September 17, 2026. Built before 1980: Census ACS 2020–2024 5-year estimates (table B25034). Wind: 2022 Connecticut State Building Code, Appendix AY. Confirm details with the town.
Historic district review in Litchfield County
Thirteen towns have local historic districts: Bethlehem, Colebrook, Harwinton, Kent, Litchfield, New Hartford, Norfolk, Roxbury, Salisbury, Sharon, Washington, Watertown and Woodbury. Inside one, no building permit to alter an exterior feature open to view from a public street, way or place may be issued until the commission grants a Certificate of Appropriateness, which is required “whether or not a building permit is required” (CGS 7-147a, 7-147d). Ordinary maintenance or repair that does not change appearance or design is exempt (CGS 7-147j), though Kent and Woodbury want documentation first. New Milford, Plymouth and Torrington regulate one designated property each (the Town Hall, the Terryville Waterwheel and City Hall), and Harwinton also has one designated house.
National Register listing is different: the State Historic Preservation Office says registration alone “does not prevent an owner from altering a property.” The Downtown Torrington, Winsted Green, Falls Village, New Milford Center, Bridgewater Center and Barkhamsted Center districts are listed but have no local district review. Canaan formed a Village Historic District Study Committee in 2023; its July 2026 minutes describe a building inventory nearly finished, and no district has been adopted.
What commissions say about siding
- Kent and Woodbury: low-maintenance aluminum or vinyl clapboard siding “is by nature inappropriate on historic buildings” (Kent regulations effective August 1, 2011; Woodbury’s, revised March 1, 2021, say the same).
- Roxbury: man-made siding that visually imitates the required siding “will not be acceptable on historic structures,” though it may be considered on new ones (guidelines revised 2018).
- Harwinton: the commission handbook says vinyl or aluminum “may be permitted, but is not recommended for historic buildings.”
- Watertown: “Synthetic siding should be avoided whenever possible,” and so should highly textured or wood-grain patterns.
- Washington: 2020 guidelines call wood shingle and smooth wood clapboard appropriate on houses.
- Salisbury and Sharon: “extensive or total replacement of siding, whether similar to or different from the original” needs a certificate.
- Borough of Litchfield: approvals in 2022, 2025 and 2026 ended with wood clapboard where vinyl had been proposed or discussed; smooth vinyl was approved on a new garage in 2023 (Litchfield siding page).
Housing age and the EPA lead rule
Census estimates (ACS 2020–2024) put 57,290 of the 88,123 homes in the county’s 26 towns, 65.0 percent, as built before 1980, and 23.4 percent before 1940. The share runs from 35.1 percent in Goshen to 79.2 percent in Norfolk; Torrington, with the most homes, sits at 74.0 percent. The Census Bureau replaced Connecticut’s counties with planning regions starting in 2022, so the county figures are our sum of the 26 town estimates. Small-town margins of error reach 14 points, and the Census groups the 1970s together, so the shares include homes built in 1978 and 1979.
For homes built before 1978, the EPA’s Renovation, Repair and Painting rule covers paid work disturbing more than 20 square feet of painted exterior surface, or any amount if painted surfaces are demolished, unless they are shown to be lead-free. It requires an EPA-certified firm, a certified renovator, and plastic sheeting on the ground at least 10 feet beyond the work. EPA, not Connecticut, administers it.
Wind and code requirements for new siding
Every town here enforces the 2022 Connecticut State Building Code (2021 IRC, effective October 1, 2022); the legislature’s Regulation Review Committee rejected its replacement on April 28, 2026, leaving the 2022 code in force. The code’s only siding permit exemption, amended R105.2, covers “repairs that are limited to 25 percent of roof covering and building siding within one calendar year.” Appendix AY sets an ultimate design wind speed of 115 mph in 18 towns and 120 mph in eight: Bethlehem, Bridgewater, Harwinton, Plymouth, Roxbury, Thomaston, Watertown and Woodbury.
- Wind (R703.1.2, R703.3.2): siding and its attachments must resist the code’s wall wind loads, and attachment must be designed above 30 psf, or in Exposure C above a 50-foot mean roof height at 115 mph and 30 feet at 120 mph; in Exposure D, above 20 feet at 115 mph and at any height at 120 mph. Exposure is set lot by lot.
- Vinyl over foam sheathing (Table R703.11.2): in Exposure B with interior drywall, the rating must reach 35.5 psf at 115 mph or 37.4 psf at 120 mph (mean roof height up to 30 feet).
- Water-resistive barrier and flashing (R703.2, R703.4): at least one layer on every exterior wall, continuous to the top, plus flashing at windows, doors, trim, decks and roof intersections.
- Materials: vinyl labeled to ASTM D3679 (R703.11); fiber cement to ASTM C1186 Type A, Grade II minimum (R703.10).
Siding we install
We install vinyl (including CedarMAX and CedarPEAK), HeartTech insulated siding, fiber cement, engineered wood and manufactured stone veneer, from ProVia, James Hardie and other brands. Your rep builds a 3D model from photos of your home, compares complete looks side by side, and brings full-size samples.
Also in Litchfield County: our Litchfield County roofing page, with snow loads and building officials for the same 26 towns.
Get a straight answer on your siding
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Common questions about siding in Litchfield County
Do I need a permit to re-side a house in Litchfield County?
Yes, in all 26 towns, unless the work is a repair limited to 25 percent of the siding within one calendar year (Connecticut's amended IRC R105.2). Inside a local historic district, the commission's Certificate of Appropriateness must come before the building permit.
Which towns across Litchfield County have local historic districts?
Thirteen: Bethlehem, Colebrook, Harwinton, Kent, Litchfield, New Hartford, Norfolk, Roxbury, Salisbury, Sharon, Washington, Watertown and Woodbury. New Milford, Plymouth and Torrington protect a single designated property each, and the other 10 towns have no local historic review.
Is vinyl siding allowed in Litchfield County's historic districts?
It depends on the commission. Kent's and Woodbury's regulations call aluminum or vinyl clapboard siding inappropriate on historic buildings, and Roxbury's guidelines reject imitation siding on historic structures, while Harwinton's handbook says vinyl or aluminum may be permitted but is not recommended.
Does the EPA lead rule apply to re-siding older homes across Litchfield County?
Yes, for homes built before 1978 when paid work disturbs more than 20 square feet of painted exterior surface, or any amount if painted surfaces are demolished, unless shown to be lead-free. An estimated 65.0 percent of homes in the county's 26 towns were built before 1980.
What Connecticut law requires of any siding contractor
Siding work on a home over $200 is a home improvement (CGS 20-419), and a contractor offering it must be registered with the Department of Consumer Protection (CGS 20-420). The contract must be in writing and signed by both sides, with the contractor’s name, address and registration number and start and completion dates (CGS 20-429). The owner may cancel until midnight of the third business day after signing; since July 1, 2025, Saturdays, Sundays and legal holidays do not count (CGS 42-134a).
Sources: 2022 Connecticut State Building Code, Appendix AY, and the 2021 IRC as adopted; Connecticut General Statutes chapters 97a, 400 and 740; ordinances, regulations and guidelines of the Harwinton, Kent, Roxbury, Salisbury, Sharon, Washington, Watertown and Woodbury commissions and the Borough of Litchfield; Preservation Connecticut; National Park Service National Register data (May 22, 2026); Census ACS 2020–2024, summed across the 26 towns; 40 CFR Part 745. Checked September 17, 2026; confirm current details with the town. Stallion Ridge Exteriors is a service-area business based in Bethel, Connecticut.