Seattle firm Coates Design has completed a home in Washington's Cascade mountain range that serves as a hub for members of a large extended family.

Tumble Creek Cabin is a vacation home designed to provide generous communal spaces for family gatherings, as well as more intimate spaces for members to be alone.

"The retreat provides ample nooks for those seeking a peaceful hideaway – and warm, light-filled spaces for lively groups," according to the studio.

The residence's main volume contains two bedrooms, a bunk room, and the home's social areas. These sleeping quarters are laid out on a longitudinal corridor, and their windows face north.

An open-concept kitchen, living, and dining room occupies the eastern portion of the home. This double-height space opens out onto a terrace, which is sheltered by the roof's dramatic overhang.

"Vaulted ceilings in the main living and dining area are supported by exposed steel and wood structural elements, and floor-to-ceiling windows look out on the landscape beyond," said the firm.

A board-formed concrete hearth sits in the centre of the living room. According to the architects, this feature "commands attention as the focal point of the main living area".

"This solid mass, along with areas of concrete floor, serve as a thermal heat sink to help maintain a stable and comfortable temperature inside," they explained.

Additional guests can be accommodated in a pavilion that lies just south of the main part of the home. Here, the architects included a games room and guest bedroom on the ground floor, and more bunk beds for children upstairs.

Wooden cladding covers the sides of the home, and echoes the interior finishes. Accent materials such as weathering steel and concrete were used in certain areas.

Other projects in the vicinity of Seattle include a floating home that allows residents to go for a swim from their bedroom and a home hidden amongst the trees, deliberately concealing its best lakefront views in order to accentuate their effect.