Completed ADU — aging in place on your property in Madison, WI
ADUs for Retirement & Aging in Place

Your Parents.
On Your Property.
In Their Own Home.

An ADU gives aging parents a fully independent space — without assisted living costs, without uprooting them, and without anyone losing their privacy.

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The Real Situation

The options most families consider aren’t great ones.

When a parent starts to need more support, the default choices are expensive, disruptive, or both. Assisted living can run $4,000–$7,000 per month. Moving in together strains relationships. Long-distance worry is constant.

An ADU built on your property changes the math entirely. Your parent has their own home — front door, kitchen, bathroom, everything — 30 feet from yours. Close enough to help immediately. Separate enough for both of you to live normally.

This is what “aging in place” actually means in practice. Not in a facility. On your property, in a home designed for their stage of life.

Assisted Living
$60k+
Per year, before care upgrades. Often $72,000–$84,000 annually in Wisconsin. Ongoing, escalating, with no equity.
ADU on Your Property
One Time
A one-time build cost that adds permanent value to your property. Your parent owns their space. No monthly facility fee.

Wisconsin assisted living cost estimates based on Genworth Cost of Care data, 2024.

Why It Works

Independent. Close. Built for the long term.

This isn’t a bedroom addition. It’s a complete, self-contained home built to function well as mobility and care needs evolve.

Full Independence
Their own entrance, kitchen, bathroom, living space. Not a suite, not a converted room. A complete home they control.
Help When It’s Needed
Proximity matters when it matters. You’re steps away, not a 40-minute drive. No emergency that waits until someone is reachable.
Privacy for Everyone
Shared walls erode relationships. Separate structures preserve them. Your household stays your household.
No Monthly Facility Fee
Assisted living costs compound year over year. An ADU is a one-time build that adds permanent equity to your property.
Grandchildren Nearby
The relationship between grandparents and grandchildren is one of the most valuable things a family can protect. Proximity makes it possible.
Designed to Adapt
Single-story. No stairs required. Wider doorways, accessible layout options. Built to function well as needs change over years, not just now.
Single-story ADU interior — accessible layout, vaulted ceiling, mini-split — Madison WI
Design for the Long Term

Built for how life actually works at this stage.

Most ADUs built for aging in place share a few design fundamentals. We think through all of them during the design phase — not as add-ons, but as built-in decisions.

Single-story, no stairs. The obvious one — and the most important. Every room, including bathroom and laundry, on one level.
Wider doorways. 36” clearance on key passages accommodates walkers and wheelchairs without feeling institutional.
Step-free entry. No threshold lips. A covered porch or covered entry to manage Wisconsin weather without risk.
Mini-split HVAC. Independently controlled. Consistent temperature. No ducting complexity. Efficient in Wisconsin winters.
Natural light. Well-placed windows and optionally vaulted ceilings keep the space feeling open rather than constrained.
Madison, WI & Dane County

ADUs for aging in place are permitted — and increasingly common here.

Most single-family lots in Madison and across Dane County allow ADUs as a permitted use. Zoning rules vary by municipality — setbacks, size limits, owner-occupancy requirements — but the regulatory environment in this area is more permissive than most of the country.

We know the municipality-by-municipality rules because we operate in them every day. Before you design anything, we verify what’s allowed on your specific parcel. No guessing. No surprises after you’ve already spent money on drawings.

Check Your Municipality →
Why Boundless

ADUs are all we build. Not a side offering.

A general contractor building an addition doesn’t bring the same depth to this project that we do. We’ve designed and built ADUs in Madison and across Dane County — for exactly this purpose. We know the permit process, the local zoning quirks, and the design decisions that make a small space work well for the long term.

✓ ADU-only design-build firm in Dane County
✓ Design, permitting, and build — all in one
✓ Single-story accessible designs, completed locally
✓ Built for Wisconsin climate — frost depth, energy code
Completed ADU interior
Start Here

Find out what’s possible on your property.

We start every project with a free feasibility check — your parcel, your zoning, your goals. Real information in one conversation, no commitment required.

Schedule a Free Consultation →