Newton St ADU

This 300-square-foot ADU transforms an existing single story garage into a secluded "urban treehouse." The ADU addition seamlessly integrates with the original structure through matching cedar shingle siding and a complementary gabled roofline, so the project feels like a natural evolution on the site rather than a cramped afterthought. A private wooden staircase leads to an elevated entry that reinforces the home's sense “treehouse” feel.

Inside, the compact floor plan defies its small footprint through the use of vaulted ceiling, strategic placement of windows, and the use of dormers to create essential headroom and floor area at the loft. These design moves help create the feel of a large space. The main level has a light-filled living area and kitchen that utilizes built-in cabinetry throughout for efficiency. Despite the limited square footage, the design successfully integrates a full bathroom and a tucked-away washer/dryer unit, ensuring the unit functions as a self-contained residence.

The sleeping loft has a custom wood-slat partition that provides safety and separation without blocking sight-lines or natural light to the living areas below. This upper loft is large enough to house both a queen-sized bed and a dedicated desk/work area. Positioned directly beneath large skylights and framed by the gabled roofs, the loft offers a literal "treetop" perspective, proving that thoughtful spatial planning and light can make 300 square feet feel remarkably expansive.