how much bigger is the renovated sanctuary?

Floor space is now 20% more (440 sq ft).
Interior volume increases almost 7,000 cubic feet (28%).
Original sanctuary:  32' wide and 70' long, with 10' walls (ceiling vaulting to 12'6" in center).
Renovation:  40' wide for front 55', original 32' width for back 15'.  Walls and ceiling are now 12' across.
And yet our air conditioning bill should go down due to more efficient air flow and better insulation!