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Buttrick Projects Architecture+Design: Hazel Road Residence, a renovation and addition to a 1950s home in Berkeley, CA

Project name:
Hazel Road
Architecture firm:
Buttrick Projects Architecture + Design
Berkeley, California, USA
Cesar Rubio, Matthew Millman (Kitchen), Buttrick Projects A+D (Stair window)
Principal architect:
Design team:
Interior design:
Buttrick Projects Architecture + Design
Built area:
Size of Current House: 2,392 ft2 (House) + 439 ft2 (Garage) = 2,831 ft2 (Total)
Site area:
Design year:
Completion year:
Civil engineer:
Structural engineer:
IDA Structural Engineers
Environmental & MEP:
Envision Landscape Studio
Tools used:
Jetton Construction, Inc.
Residential › House

Buttrick Projects Architecture+Design: This 1950s-era house was long in need of an upgrade and expansion to capitalize on otherwise ‘good bones’ and to satisfy the needs of a family with young children. A kitchen remodel was the first problem to tackle. At that time the foundation work for the future upstairs addition was also put in place, so that the second level master bedroom addition would proceed more smoothly. The organizing element to the plan is the stair, which replaces storage and mechanical closets, and otherwise opens a previously narrow and dark hallway. Combining storage, access, craftsmanship, materiality, a bar, transparency, and daylighting from above, the attitude towards the stair nodule combines many features that carry through the project. Another unifying concept to the project was to use the yard to greater effect. This meant adding flush sliders to the family room/kitchen blurring the line between indoor and outdoor space. Basalt paving in the yard transitions to wide wood and concrete steps providing spectator seating when the kids perform on the lawn. An exuberant magnolia gives the new upstairs primary bedroom a treehouse feel with full wall sliding windows that have an ‘invisible’ glass safety rail. Direct western light and glare are controlled by exterior shades and deep overhangs. The new, second level 700 square foot addition integrates with the humble wood siding/composition shingle exterior of the original house, yet is set apart through its use of a state-of-the-art rainscreen wall featuring cementitious panel siding. The new addition brings the house's total size (including garage) to 2,831 square feet.

By Liliana Alvarez

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