Build an ADU in Bartlett.
New Hampshire's HB 577 lets you add one accessory dwelling unit on your single-family lot in Bartlett — by-right. A detached ADU can be up to 950 sf, and ADU setbacks match your lot's single-family setbacks.
6 districts
Each district's single-family setbacks — which your ADU follows. The primary residential district is highlighted.
Verified against the official Bartlett zoning ordinance · source · 2026-07-06
- Front
- 60 ft
- Side
- 15 ft
- Rear
- 15 ft
- Max coverage
- —
- Min lot
- 30,000 sf (~0.69 ac)
PRIMARY single-family residential district: the town-wide catch-all covering all land NOT in the Commercial, Residential B, Industrial, or National Forest districts (Art III.C.5). FRONT SETBACK IS MEASURED FROM ROAD CENTERLINE, not the front lot line: for a single home ('all…
- Front
- 115 ft
- Side
- 15 ft
- Rear
- 15 ft
- Max coverage
- —
- Min lot
- 30,000 sf (~0.69 ac)
Substantially residential area along West Side Road, bounded by the Saco River (N/E) and White Mountain National Forest (S/W), excluding the Industrial District parcels (Art III.C.2). FRONT SETBACK IS MEASURED FROM ROAD CENTERLINE, not the front lot line: for a single or…
- Front
- 115 ft
- Side
- 15 ft
- Rear
- 15 ft
- Max coverage
- —
- Min lot
- 40,000 sf (~0.92 ac)
Commercial corridor: land fronting on / with direct or qualifying indirect access within 400 ft of the rights-of-way of Routes 302 and/or 16 within Bartlett (Art III.C.1); purpose is selected commercial services.
- Front
- 115 ft
- Side
- 15 ft
- Rear
- 15 ft
- Max coverage
- —
- Min lot
- 40,000 sf (~0.92 ac)
Small industrial district: specific West Side Road parcels only — Map 6WSTSD parcels 371R00, 371R01, 399R00, 399R01, 401R00 (Art III.C.3); purpose is clean/light industry. FRONT SETBACK IS MEASURED FROM ROAD CENTERLINE, not the front lot line: single/duplex home (Art XI.A.3)…
- Front
- —
- Side
- —
- Rear
- —
- Max coverage
- —
- Min lot
- —
All land in Bartlett that is part of the White Mountain National Forest (Art III.C.4); purpose is to maintain and protect the national forest (Art X.E). All dimensional fields null (no applicable private-development standards stated); the general Art XI.D water setback (20…
- Front
- —
- Side
- —
- Rear
- —
- Max coverage
- —
- Min lot
- —
OVERLAY district (labeled 'Overlay' in the Art III.A symbol table; added 3/12/01). All base dimensional fields null because RHOD carries no independent setback/lot/coverage numbers — it overlays whatever base district (usually TRDA) applies; use that base district's…
Form-based and downtown districts may use build-to lines instead of fixed setbacks (shown as “—”); verify your parcel's district before you build.
Bartlett ADU FAQ
Yes. Under NH RSA 674:71-73 (HB 577), one accessory dwelling unit is allowed by-right on single-family lots statewide, including Bartlett (Carroll County). A detached ADU can be up to 950 sf.
In Bartlett's TRDA zone, ADUs follow the single-family setbacks: 60 ft front, 15 ft side, and 15 ft rear. Bartlett has 6 zoning districts in total — see the full table below. Confirm your exact zone with the town.