Build an In-Law Suite in Madison, WI
An in-law suite on your property — fully independent, code-compliant, and purpose-built for family life. Here’s what that actually means in Dane County.
Free Feasibility Check →The modern in-law suite is an ADU
When people search for “in-law suite,” they’re usually imagining a bonus room with a kitchenette, or a finished basement with a separate entrance. What they actually want — and what serves aging parents best — is something different: a fully independent dwelling unit on their property, with no shared walls, no shared entrance, and no shared kitchen.
That’s an ADU. In Wisconsin, Accessory Dwelling Units are the official term for what most families call an in-law suite, in-law apartment, or in-law cottage. The key difference: an ADU is a permitted, code-compliant home — not an informal conversion.
A detached ADU gives aging parents real independence. Their own front door, their own kitchen, their own thermostat. Not a converted garage. Not a basement bedroom with a mini-fridge. A complete home — 30 feet from yours.
ADU vs. traditional in-law suite: why it matters
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 if an in-law ADU is possible on your property.
Most Dane County lots qualify. The feasibility check takes 20 minutes and is completely free.
Get a Free Feasibility Check →