ESD, located on three campuses, continues to develop, currently with 248,000 sq.ft. in facilities. The latest additions to the Merrell Road campus are a 55,000 sq. ft. center for arts and humanities and a new stadium complete with state-of-the-art athletic turf, locker rooms, and accommodations for home and visiting fans. The Lower, Middle and Upper School campuses are located in the Preston Hollow-area. The Merrell Road campus spans more than 39 acres. ESD's rural outdoor education center, located in northern Collin County, is comprised of 159 acres.