The EC32-8-VEM-SS78 BAT CAVE has a 4000 square foot first floor configuration which provides long term living quarters for 1 to 2 families. The structure includes a garage for six cars, two 6 KW diesel generators, two 2000 gal diesel tanks, two MCAS 600 air filtration units, hydraulic 8000 lb vehicle elevator, ample storage, hydraulic hatch on a spiral stairwell, and a 2nd story expansion with a 10 year off-grid power supply.