Just checked a city lot I use. The spots are small, and trucks don't really fit. But even these tiny spots use 510sqft for each pair of parking spots on an ai

Just checked a city lot I use. The spots are small, and trucks don't really fit. But even these tiny spots use 510sqft for each pair of parking spots on an aisle, so ~250sqft each (without accounting for ramps, and other shared spaces).