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Vol. 24 No. 8 CONSTRUCTION COST CASE STUDY
The costs for this case study are from a project that IVI has monitored on behalf of a lending institution.
December 2009
Project
80/20 Apartment Building
New York, NY
80/20 Apartment Building NY
Size 21-story, 386,000 SFG with 360 units and two below-grade parking levels
Site 0.75 acres
Schedule 24 months
Delivery Cost of the work plus a fee
Labor Union
Outline Specifications
Site Excavation, grading, utilities, and landscaping
Foundation Reinforced cast-in-place concrete walls and footings
Superstructure Reinforced cast-in-place concrete
Facade Face brick with CMV back-up and aluminum framed insulated glass window walls
Roof Stone ballast and rigid insulation over fluid applied asphalt membrane
Finishes Wood flooring in living room, dining room, and bedrooms with painted gypsum board walls and texture paint on concrete ceilings; ceramic tile in kitchen and bathrooms with painted gypsum board walls and ceilings; painted gypsum board walls and ceilings in common areas; stone flooring in lobby and carpet in corridors
Elevators Two 22-stop gearless traction elevators and one 23-stop gearless traction elevator
Sprinklers Dry pipe system in parking levels; 100% wet pipe system in building
Plumbing Cast iron sanitary waste and vent piping; copper domestic water supply
HVAC Packaged terminal air conditioning units in residential units with steam heat and electric cooling; gas-fired packaged roof top units in common areas
Electrical 4,000 amp, 120/208 volt, 3-phase 4-wire service
Direct Cost Synopsis
Trade Rounded Cost Cost
Per Unit
Cost
Per SF
Site Work $1,128,000 $3,133 $2.92
Excavation/Foundation 12,406,000 34,461 32.14
Subtotal Site $13,534,000 $37,594 $35.06
General Conditions $2,030,000 $5,639 $5.26
General Contractor Fee 406,000 1,128 1.05
Total Site $15,970,000 $44,361 $41.37
Concrete $26,918,000 $74,772 $69.74
Masonry 5,809,000 16,136 15.05
Metals 1,832,000 5,089 4.75
Carpentry/Drywall 10,747,000 29,853 27.84
Thermal/Moisture Protection 2,557,000 7,103 6.62
Doors/Windows 9,509,000 26,414 24.63
Finishes 4,695,000 13,042 12.16
Specialties 405,000 1,125 1.05
Equipment 55,000 153 0.14
Cabinets/Appliances 1,582,000 4,394 4.10
Elevators 1,547,000 4,297 4.01
Fire Protection 2,579,000 7,164 6.68
Plumbing 6,880,000 19,111 17.82
HVAC 8,326,000 23,128 21.57
Electrical 11,085,000 30,792 28.72
Subtotal Base Building $94,526,000 $262,572 $244.89
General Conditions 14,179,000 39,386 36.73
General Contractor Fee 2,836,000 7,878 7.35
Total Base Building $111,541,000 $309,836 $288.97
Total Rounded Direct Cost $127,511,000 $354,000 $330.00
Cost Distribution
Case Study Pie Chart

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