28' x 18' Guest Suite Addition: A Custom Timber Frame ADU

We worked closely with our client to design an 800-square-foot addition that maximizes a compact site without sacrificing style. This energy-efficient timber frame structure provides universal access on the main level—including a kitchen, living room, and full bath—and a second-floor bedroom loft with a half-bath. With its own separate entrance and garden-view windows, this versatile suite is perfectly suited for extended family or as a standalone rental unit. It’s a seamless expansion that adds both significant square footage and long-term value to the property.

With a separate entrance, kitchen, bathroom and living space, the addition is well-suited to be used for extended family, guests or as an Airbnb.

Floor Plan and Elevations: Click a thumbnail to start this slideshow.