It would depend on you local municipality parking codes, they vary some. For my local area we can use 9x18 as a standard or 8.5x16.5 for a compact (limit of 30% for the compact). Aisle will vary depending on angle of parking stalls.
I would figure this as a u-shaped lot if possible, would give you 4 rows( 2 of 24, 2 of 26) , 2 aisles, 1 back row of 9 with aisle, plus you would need an access aisle. this would take an area of 276x120' for 33,120 plus any other requirements, landscaping, lighting, HC stalls, turning, etc.
figuring a standard stall of 9' wide and a depth of 18' add half the aisle width(24') to the depth for 9x30 = 270' per , normally would have a landscaping requirement of 10-15% so at a min of 32-36,000
Hope this was able to help out
Jun 6, 2013