Proctor's first theme residence, Carriage House is home to students dedicated to environmental responsibility. The cottage at the west end, now a faculty residence, housed horse-drawn carriages in the 19th Century. A new dormitory, built to exacting environmental standards, was completed in 1998. An environmental science classroom separates the east (boys) wing from the west (girls). Students in Carriage House pitch in with the upkeep of their home, feeding the wood burning furnace, preparing weekly dinners together and sharing housekeeping responsibilities. Leaders of Proctor Environmental Action, the school's student-run recycling and environmental stewardship club, tend to live in Eco-dorm.