Abstract: A multi-level building has a plurality of service bays each having upper and lower work floors both surrounded by walls. The upper work floor has a floor aperture with roller mounted horizontal gates to open and close the aperture. The gates are capable of supporting lift jacks and taking the weight of the motor vehicle. The upper work surface received the motor vehicle. A moveable door in one end wall of the bay precludes unauthorized removal of the motor vehicle. Tanks remote from the work surfaces are connected to fluid collectors operable from the lower work surface. Upper and lower access drives are connected by ramps for the entry and exit of vehicles and the delivery of supplies and removal of waste. Other doors and gates deny unauthorized access to the work surfaces. The bays may be arranged in side-by-side or tandem relationship with access ways between tandem bays such that a vehicle may move from one bay to another or be removed from the structure without passing through the second bay.