Built Work / Aging-in-Place ADU
Vaulted great room in a Madison, WI aging-in-place ADU, with the kitchen, living area, and entry in one open space
Aging-in-Place ADU All Projects

Aging-in-Place ADU, Madison

436 sq ft ADU Size
~4.5 months Slab to CO
1 bed / 1 bath Program
Madison, WI Location
The Starting Point

One move across the country. One short walk next door.

Built so Dad could come home. He moved from California to live right next door, in a space designed for the years ahead.

The homeowners had a specific goal: bring a parent from California to Madison and give him a home of his own, close enough to share dinners and far enough to keep his independence.

They didn’t want an addition, and they didn’t want a spare room in the main house. They wanted a fully independent home a few steps from their back door, built for how he lives now and for how his needs will change.

That’s what an ADU does best. This project is about as clear an example of aging in place as we’ve built.

The Design

Small on purpose.

At 436 square feet, this is one of the smallest ADUs we’ve built. We based it on our B-436 model, whose L-shaped plan keeps the bedroom separate from the living space, so the home feels like real rooms instead of one compact box.

Every square foot had to work, so the design leans on a few deliberate moves:

  • Vaulted kitchen and living area. Raising the ceiling plane over the main living space adds air and light without adding floor area.
  • Accessibility built in from day one. The bathroom has a curbless walk-in shower, grab bars, and a handheld shower head, so the home doesn’t need retrofitting later.
  • Laundry where it’s used. A stacked washer and dryer sits right off the bathroom.
  • Ductless mini-split heating and cooling, with an indoor unit in the living area and one in the bedroom.
  • Natural light on every side. Sliding windows line the living area, and there’s a window above the kitchen sink.
Vaulted great room in a Madison, WI aging-in-place ADU, with the kitchen, living area, and entry in one open space
Vaulted great room, with the kitchen, living area, and entry in one open space
Kitchen and living area with sliding windows on two walls — aging-in-place ADU, Madison WI
Kitchen and living area with sliding windows on two walls
Gray shaker cabinets, black hardware, and a window over the sink — aging-in-place ADU, Madison WI
Gray shaker cabinets, black hardware, and a window over the sink
Living area looking toward the bath and laundry hall, with the mini-split overhead — aging-in-place ADU, Madison WI
Living area looking toward the bath and laundry hall, with the mini-split overhead
Bedroom with ceiling fan, mini-split, and a wide sliding window — aging-in-place ADU, Madison WI
Bedroom with ceiling fan, mini-split, and a wide sliding window
Bedroom closet and ceiling fan — aging-in-place ADU, Madison WI
Bedroom closet and ceiling fan
Closet with built-in shelving — aging-in-place ADU, Madison WI
Closet with built-in shelving
Curbless walk-in shower with grab bars and a sliding glass door — aging-in-place ADU, Madison WI
Curbless walk-in shower with grab bars and a sliding glass door
Matte black shower valve, handheld head, and grab bars against white subway tile — aging-in-place ADU, Madison WI
Matte black shower valve, handheld head, and grab bars against white subway tile
Wood-tone vanity, black faucet, and a window for natural light — aging-in-place ADU, Madison WI
Wood-tone vanity, black faucet, and a window for natural light
Detail of the two-light vanity fixture — aging-in-place ADU, Madison WI
Detail of the two-light vanity fixture
Bathroom vanity with the stacked washer and dryer beside it — aging-in-place ADU, Madison WI
Bathroom vanity with the stacked washer and dryer beside it
Hallway to the bath and laundry — aging-in-place ADU, Madison WI
Hallway to the bath and laundry
Stacked washer and dryer — aging-in-place ADU, Madison WI
Stacked washer and dryer
Finishes

Finishes that read like a house, not a unit.

  • Light wood-look luxury vinyl plank floors throughout the living areas, with tile in the bath
  • Gray shaker cabinets with soft-close doors and drawers, and black bar pulls
  • Light quartz countertops
  • Full-size kitchen with range, over-the-range microwave, and refrigerator
  • Matte black plumbing fixtures and hardware throughout
  • Wider baseboard and door casing than our standard trim, an upgrade made on this build
  • White subway tile shower surround
The Build

From slab to move-in.

  • Nov 2025: Contract signed after a site visit and proposal for the B-436
  • Dec 2025 – Jan 2026: Plans engineered and stamped, and zoning approved (zoning final 1/9/26)
  • Late Mar 2026: Excavation, then the monolithic slab was poured
  • Mid-Apr 2026: Framing, trusses, roof, windows, and siding, with the shell closed in within about a week
  • May 2026: Insulation, drywall, cabinets, and flooring
  • Jun – Jul 2026: Finishes and final inspections, with the building final on 7/14/26
  • Jul 16, 2026: Public open house, with roughly 75 visitors
  • Aug 17, 2026: Certificate of occupancy issued
How We Run the Job

Utility coordination: worked around, not waited on.

The project needed a new underground electrical service for both the main house and the ADU, which meant coordinating with the utility to cut the existing home over to the new line. As with every job, we kept interior work moving while utility scheduling caught up.

The Outcome

A home for the next chapter.

A 436-square-foot, one-bedroom, one-bath ADU with a vaulted great room and an accessible bathroom, built so a family could be together without giving up anyone’s independence.

He didn’t move into a spare room. He moved into his own home, right next door.

~4.5mo Slab to occupancy
436 Sq ft delivered
1 Bedroom
1 Accessible bath

Planning for a parent, or for your own future?
We’ll walk your property, confirm what’s possible, and give you clear pricing in days, not weeks.

Related: Accessible ADUs in Madison · ADUs for Retirement · B-436 Model · Multigenerational Living