Single-family new house construction building permits: 1  1997: 19 buildings, average cost: $85,400. 2  1998: 12 buildings, average cost: $80,500. 3  1999: 10 buildings, average cost: $109,500. 4  2000: 12 buildings, average cost: $110,800. 5  2001: 15 buildings, average cost: $136,000. 6  2002: 7 buildings, average cost: $117,700.
Lighting Strategy. Lighting a living room with a pleasing glow is achieved by placing the recessed lights approximately 2 feet away from the wall for an average 8 foot ceiling. As a result, the light illuminates the ceiling and wall area for a calm mood.
1 Divide the distance between light units by 2 that will be the distance from the wall to the first light unit.  Recessed Lighting Spacing Calculations for task recessed lighting layout. Measure the distance from the ceiling down to the surface you wish to light, for example, the floor or a countertop.