Build a Backyard Cottage in Madison, WI
A backyard cottage is a small, independent home built on the same lot as your primary residence. In Wisconsin, they’re called ADUs — and Boundless Tiny Homes builds them across Dane County.
Free Feasibility Check →What is a backyard cottage?
A backyard cottage is a small, self-contained home built in the rear or side yard of an existing property. In Wisconsin, the official zoning term is Accessory Dwelling Unit (ADU) — but backyard cottage, granny flat, and in-law suite all describe the same concept: a complete, permitted dwelling unit on your property.
A Boundless backyard cottage has its own entrance, kitchen, bathroom, and living space. It sits on a permanent foundation, meets Wisconsin energy code, and is designed to handle Dane County winters — not a prefab shed or temporary structure.
Backyard cottages are legal across most of Dane County. Madison, Fitchburg, Middleton, Verona, and most surrounding municipalities allow ADUs by right on qualifying lots. A feasibility check confirms what’s possible on your specific parcel.
What people build backyard cottages for
Boundless Tiny Homes offers 17 backyard cottage floor plans from 360 to 936 sq ft — all designed for Wisconsin climate, Dane County zoning, and long-term livability.
Built by Boundless Tiny Homes — Madison, WI
Boundless Tiny Homes is the only ADU-only design-build firm in Dane County. We design, permit, and build ADUs across Madison, Fitchburg, Middleton, Verona, Sun Prairie, and all surrounding municipalities. Every project is managed from feasibility check through Certificate of Occupancy — one firm, one contract, no handoffs.
Get a Free Feasibility Check →Learn more
Find out what’s possible in your backyard.
The feasibility check is free. We confirm what’s buildable on your lot, your municipality’s setback requirements, and what it will cost.
Get a Free Feasibility Check →