Axis Architects and Interiors logo located in Rockville, MD
Front exterior of a white renovated DC townhouse with historic brick details and modern third-floor addition

Home Addition in Near Northeast Neighborhood

Project Overview

Nestled in DC’s vibrant Near Northeast neighborhood—just north of the bustling H Street corridor and close to Union Market—this renovation and third-floor addition reconfigure an existing townhouse into a two-unit residence: a one-bedroom, one-bath apartment at the basement level, and a spacious upper unit with four bedrooms, three and a half bathrooms, and a private roof terrace. The design approach prioritized spatial efficiency, increased natural light, and massing that responds sensitively to the surrounding context and traditional urban fabric of Washington, DC.

Architecture

Washington, DC’s historic townhouses are an essential part of the city’s urban character, and this Northeast property is no exception with its ornate brick façade. The client’s program called for increased livable space and the addition of a separate basement unit. A third-floor addition—or “pop-up”—was necessary to meet these needs.

Pop-ups present a unique challenge: adding square footage to meet contemporary standards while preserving the character of the townhouse and the rhythm of the streetscape. To address this, the new volume was set back from the front façade to minimize its visibility from the street. This setback also allowed for a private terrace off the primary bedroom. At the rear, the new level includes a home office with a balcony and stair access to a roof deck, offering extended outdoor space and unobstructed views of Washington, DC.

Front exterior of a white renovated DC townhouse with historic brick details and modern third-floor addition

The main level features an open-plan configuration with added side windows to increase daylight access. A rear mudroom provides both storage and a transition zone from the detached garage to the interior. On the second floor, three bedrooms and two bathrooms are organized around a central hallway for efficient circulation.

The basement unit functions as a fully independent apartment, with its own entrance, open living and kitchen area, one bedroom, and one bathroom. This configuration introduces flexibility and contributes to housing alternatives in the heart of the city.

The project balances the need for additional space in a dense urban setting with a respect for neighborhood character. Through careful massing, spatial clarity, and an emphasis on natural light and outdoor connections, the design extends the life of a historic structure while adapting it for contemporary living.

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