An energy audit of the Historical Society Building identified ten energy conservation measures. DAE recommended night set-back, limiting steam demand, lower minimum variable air volume box set-points, time clocks for exhaust fans, reducing outside air, lighting upgrades, vending machine set-back timers, occupancy sensors in offices, restrooms and mechanical rooms, condensate heat and water recovery. The energy cost payback and return on investment to implement these measures are 1.4 years and 69.2% respectively, which will result in a 20.9% reduction in energy costs.