C. Unit costs:

1. The community room is part of the structure, while the rest of the non-attributable features are exterior. The unit cost for the community room will be the Total Structures cost per gross square foot of building area. In form HUD-92264, divide $1,665,000 (Line 41 of Section G) by 30,000 sf (Line 33 of Section C), giving a cost per gross square foot of $55.50.

2. Determine unit costs for exterior features from the Office benchmark data bank or a published data source. The exterior unit costs used in this example are typical.

• D. Parking lot:

Asphaltic concrete parking lot paving: $1.25 per sf Concrete perimeter curbing (500 lin. $10.50 per lin. ft. ft.): Concrete parking bumpers: $30 ea. Stormwater catch basins (4): $1,500 ea. Storm drain line (350 lin. ft): $27 per lin. ft. Parking lot striping: $4 per car