Additions to House in Spring Valley
Exterior addition
Brick facade
Library area
Library area
Library area
Living room area
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Project Description

An existing contemporary carport and a screened porch addition were removed from a mid-nineteenth century farmhouse—a DC Historic Landmark building—and replaced with a two-story addition for the creation of more desirable spaces on a very limited site overlooking the Potomac River valley.

The addition is compatible in style and scale with the existing structure and connects to the house at the ground floor by a covered walkway and, at the second floor, by a continuous open-air wood patio.

The addition also contains a garage on the lower level and a single large open room on the upper level offering views up and down the river. Extensive alterations and renovations were made to the existing house including the bathrooms and kitchen.

A new entry porch was created on the driveway side of the house, and a new porch was added to the front of the original house. The result is a well-laid out addition that connects the existing home and interior spaces to the extensive surrounding landscape and the new swimming pool.


Washington, DC

General Contractor

RSB Builders

Landscape Design

Crowther Associates

Interior Design

Sara Bengur Associates


Anne Gummerson

Maxwell Mackenzie

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