Located next to the existing Comcast Center, the Comcast Technology Center rises 1,121 feet (341 meters) as Philadelphia's tallest building. Designed by Foster + Partners, the Comcast Technology Center is vertically stepped, with loft-like workspaces and state-of-the-art television studios for NBC10 and Telemundo62, with a 12-story Four Seasons Hotel above. At an urban scale, the project is conceived as a welcoming addition to the neighborhood, integrated with its shops, bars and restaurants.

The 1800 Arch Street site is between the residential and social hub of Rittenhouse Square and the cultural district around Benjamin Franklin Parkway. Reflecting Philadelphia’s great civic tradition of public spaces, the base of the building features a sheltered winter garden that foregrounds the main entrance. This ‘urban room’ combines the best elements of a lobby, a plaza and social spaces to create something completely new for residents and visitors of the city, featuring several site-specific works of art such as For Philadelphia by Jenny Holzer and Exploded Paradigm by Conrad Shawcross that animate the space.

The LEED Platinum design takes advantage of the city’s pleasant climate, offering protection from the harsh winters. The building utilizes an active chilled beam system which reduces the energy loads and creates a healthier working environment. The typical floorplate has been designed to optimize and control light levels through efficient glazing with high light transmittance and an automated blind system. Daylight penetrates into the interior spaces through triple-height sky gardens. The building also features systems to ensure water efficiency with green roofs and high-performance cooling towers.