Home / Design Tools / ADU Sizer
Panelized shells price close to linearly by footprint. Set the size and configuration to see the shell, the finished cost, and what it might rent for.
Local rent is per square foot per month — check comparable small rentals in your town. "Turnkey" is a finished, move-in unit.
Excludes land, site work, utility runs and impact fees, which vary more than the building does. NH allows an ADU on most single-family lots.
Price an ADU
We discount gross rent by about 30% for vacancy, maintenance and taxes, then divide the finished cost by that annual figure. Add the property-value bump the whole time, and most ADUs on land you already own pencil out over a 10+ year hold.
See the Thermasteel systemTell us the room, a rough budget range and when you'd like to start. We'll come back with next steps and a realistic timeline — no pressure, no mystery pricing.
