Building 26, located in the Philadelphia Naval Shipyard Historic District, was constructed in 1909 as the Ordnance Building where military supplies were stored.  Powers & Company provided historic preservation consulting so that Building 26 could be rehabilitated for office use with Federal Historic Preservation Tax Credits.  This 3-story, red brick, Classical Revival style building is one of the earliest extant buildings on the campus of the Naval Shipyard. The existing site plan of Building 26 included several other associated buldings such as a garage, a bus shelter, two quarters buildings, a gas mask training center.

In the course of the rehabilitation process that began in 2003, the buildings associated with Building 26 were evaluated and researched by Powers & Company, Inc. Many of these buildings were subsequently removed in order to create a new entrance on the east elevation and the expansion of a new parking/drop-off area.

Prior to rehabilitation, the interior of Building 26 was divided into three levels: a first floor that contained a two-story volume, an enclosed mezzanine on the second floor and a full third floor. In the rehabilitation, the first floor was altered to allow for the expansion of the mezzanine to the eastern wall.

With the assistance of Powers & Company, Inc., the key historic features of the monumental first floor were identified and retained, including: two large full-height areas that exhibit the full volume of the space, exposed brickwork, the paneled and glazed mezzanine wall, structural steel members, and the complete overhead crane rails and crane.