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Ellen Cassilly Architect

Ellen Cassilly Architect

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About Us

Founded in 1999, Ellen Cassilly Architect is an architectural design firm specializing in intelligent design that fosters vibrant urban communities. Our design work includes renovation, new construction, adaptive reuse (upfitting older buildings for new uses), and urban infill (new building design that compliments surrounding architecture). We believe that smart urban design should focus on individual buildings and spaces and the impact each has on the surrounding community. We design to inspire connections between people, community and the environment. We place a high priority on creating walk-able urban neighborhoods that minimize sprawl, preserve natural open spaces and attract lifelong residents while simultaneously protecting the environment. Whenever possible, we use recycled or low embodied energy materials and reuse buildings with existing connections to the urban infrastructure. Abundant natural light, sight lines through rooms and views outside are hallmarks of our designs. Good site planning allows us to create buildings that are climatically comfortable as well as energy efficient. Our goal is to help our clients transform their creative vision into homes, buildings and landscapes they love to live in. We welcome your ideas and input throughout the design process.

Services Provided

3D Rendering, Architectural Design, Architectural Drawings, Building Design, Custom Homes, Energy-Efficient Homes, Home Additions, Home Extensions, New Home Construction, Sustainable Design

Areas Served

Chapel Hill, Durham, Raleigh


Triangle AIA Merit Award - Poland-DeFeo House 2004 NCAIA Honor Award - Poland-Defeo House 2005 Indy Awards Best Green architect Durham County 2012, '13, '14 Indy Awards Best Architect Durham County 2015 Durham Magazine Best Architect Durham County 2015 Leadership Triangle Goodmon Fellow 2011


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Business Details

Business Name

Ellen Cassilly Architect

Phone Number

(919) 530-1149


600 Foster Street
Durham, NC 27701

Typical Job Cost

$150,000 -


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