This urban school began with a large building by a Houston firm (1973–1974, Caudill Rowlett Scott). The addition of 1999 won an AIA Delaware award. Brown bricks at the foundation relate to the original building, but everything else is Postmodern, including the use of curved walls, strong color, and varied materials: tan and orange bricks, gray aluminum panels, and green window glass. The campus entrance pavilion, with its patterned brick-work and bright-green metal (the school color), is eye-catching. The college was built on the site of the Thomas Garrett House, from which the abolitionist is said to have ferried 2,700 slaves north via the Underground Railroad.