ADUs - Accessory Dwelling Unit

An accessory dwelling unit, or ADU, is a smaller, self-contained living space on the same property as a single-family home — attached, built into an existing structure like a garage or porch, or fully detached, but always with its own kitchen, bathroom, and living space.

As zoning has opened up across Fairfield and Westchester Counties, more homeowners are adding ADUs for rental income, aging parents, adult children, or a separate home office. Carlson Architects designs ADUs that work with the site they're built on — not a one-size-fits-all model. Below are three of our current designs, including one currently under construction.

Under Construction: "Wrap Around"

630 sf | Flat roof | Full kitchen | ADA-compliant bathroom

Wrap Around is designed to fit around an existing porch, extending the home's footprint without disrupting its relationship to the yard. Its flat roof is planted as a green roof, visible from the adjacent deck, and doubles as a stormwater management feature — reducing runoff into nearby wetlands. An in-slab hydronic heating system keeps the space efficient and comfortable year-round.

Latest Update: The foundation is poured. Next up: rough-in for the in-slab hydronic heating system, followed by the slab pour. Check back for progress photos as construction continues.

 

737

737 sf | 2 bed | 1.5 bath | Two stories

737 is designed around affordability, using a compact two-story footprint to reduce the size of the foundation and roof — typically the most expensive parts of any build. The layout flips convention: living space is upstairs, taking advantage of light and views, while both bedrooms sit on the ground floor. A cantilevered balcony off the upper level adds outdoor space without adding foundation.

751

751 sf | 1 bed | 1 bath | Single story

751 is a single-story ADU built for comfortable, everyday living. The kitchen is organized around a central island, opening into generous living space. A walk-in closet and separate utility closet add storage that's often missing from smaller units.