Calistoga Weekend House by Signum Architecture

Calistoga Weekend House by Signum Architecture

Project: Calistoga Weekend House
Architects: Signum Architecture
Builder: Fairweather Construction
Modular Construction: Method Homes
Interior Design: Alison Damonte
Landscape Design: Terremoto Landscape Architecture
Location: Calistoga, California
Square Footage: 5200
Completed 2020
Photo Credits: Bruce Damonte
Text by Signum Architecture

Set in the mountains between Sonoma and Napa, this weekend home is just 10 minutes from downtown Calistoga, but it seems much further removed.

Our involvement with the project began early. Familiar with the valley and the site from regular bike-riding excursions in the area, we walked the site with our client before the purchase was complete.

Calistoga Weekend House by Signum Architecture

Though the parcel of land is much larger, the building site was constrained by a pre-existing building envelope, stands of manzanitas and dense woodlands. Comprising two small knolls with a gentle swale in between, the building site backs up to the woodlands, with a creek running below and sweeping views in multiple directions. In one direction lay views down the valley, in the other lay views of Pepperwood Preserve, a 3,000-acre nature preserve that includes the headwaters of three creeks that feed into the nearby Russian River.

Calistoga Weekend House by Signum Architecture

“Our client was keen on the modular concept and Method Homes was one of the two or three companies that we initially considered,” says Jarrod Denton, a partner at Signum Architecture. “After reviewing their ability to customize the modules and accommodate a site-built living room, Method Homes was the clear choice.”

Calistoga Weekend House by Signum Architecture

In order to build sustainably, we designed the Calistoga Weekend House using a combination of prefabricated modular units and custom construction. With a ratio of roughly 80% prefab to 20% site-built construction, we used six prefabricated modules downstairs and five above. Given the remote and delicate nature of the site, delivery and placement of the modules was carefully orchestrated. After delivery, the modules were stitched together, and the custom elements and parapet roof were constructed onsite. Conditioned, ventless attic space, highly fire-resistant materials and an emphasis on minimizing fuel near the home mitigate fire risk.

kitchen, Signum Architecture

Calistoga Weekend House by Signum Architecture

“While we were responsible for pushing boundaries with the furnishings, the client’s own art collection brought a very unique and personal perspective to a project that is, at its very basic level, constructed from a preselected kit of parts,” says Alison Damonte of the interior design. “This client is a dreamer, an entrepreneur and a visionary, and those ideas are absolutely apparent in their art collection, which includes cutting-edge photography and video art by contemporary artists including Leo Villareal, Laurie Simmons, Philip-Lorca diCorcia and Roe Ethridge.”

bedroom, Signum Architecture

Placing the home between the two knolls allowed us to create an indoor/outdoor environment that communed with the site rather than dominating it. The central entry, directly aligned with the views of the preserve, opens to a custom-built living area, while private living areas enjoy upvalley views. A strong sense of horizontality and a palette of wood-on-wood, punctuated with metal, relate to the wooded hillside behind the house. The palette of materials is purposefully restrained, primarily concrete, glass and wood. Aluminum siding on the modular units is framed with borders of stained cedar and Shou Sugi Ban, a traditional charred wood finish that resists insects and fire. We pulled the charred wood finishes into the dining area to create a strong connection between the exterior and interior. A carport replaces the traditional garage, to keep the impact of the house as open and transparent as possible.

bathroom, Signum Architecture

bathroom, Signum Architecture

bathroom, Signum Architecture

home office, Signum Architecture

Calistoga Weekend House by Signum Architecture

Calistoga Weekend House by Signum Architecture

Calistoga Weekend House by Signum Architecture

Calistoga Weekend House by Signum Architecture

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