| Project |
High-Rise Office (Core and Shell)
Chicago, Illinois |
 |
| Size |
48-story, 1,342,000 SFG; 6-parking levels |
| Site |
0.75 acre |
| Schedule |
28 months |
| Delivery |
Guaranteed Maximum Price |
| Labor |
Union |
| Site |
Excavation, grading, utilities, hardscape and landscaping |
| Foundation |
Concrete caissons supporting 10’ concrete mat foundation |
| Superstructure |
Structural steel frame supporting composite concrete/metal deck elevated floor slabs |
| Facade |
Aluminum and glass curtain wall |
| Roof |
“Green Roof” – planting substrate, filter fabric, protection mat over rigid insulation, and fluid applied asphalt membrane waterproofing |
| Lobby |
Stone flooring and walls with painted drywall ceilings |
| Elevators |
20 gearless traction elevators and two (2) geared traction elevators |
| Sprinklers |
100% coverage; dry pipe system in parking levels; wet pipe sprinkler system elsewhere |
| Plumbing |
Cast iron sanitary waste and vent piping; copper domestic water supply; electric domestic hot water heaters |
| HVAC |
Three (3) 1,100-ton electric chillers and rooftop cooling towers, distributed via VAV boxes; heating all electric: electric resistance coils within the VAV boxes on office floors; electric unit heaters in parking areas |
| Electrical |
30,000 amp, 277/480 volt, 3-phase 4-wire service, and a 1,500kW emergency generator |
|
| Trade |
Rounded Cost |
Cost
Per SF |
| Excavation |
$1,603,000 |
$1.19 |
| Caissons |
1,099,000 |
0.82 |
| Site Improvements |
1,407,000 |
1.05 |
| Subtotal Site |
$4,109,000 |
$3.06 |
| General Conditions (8%) |
$329,000 |
$0.25 |
| General Contractor Fee (3%) |
133,000 |
0.10 |
| Total Site |
$4,571,000 |
$3.41 |
| Concrete |
$26,478,000 |
$19.73 |
| Masonry |
8,356,000 |
6.23 |
| Metals |
33,880,000 |
25.25 |
| Carpentry/Drywall |
6,393,000 |
4.76 |
| Thermal/Moisture Protection |
5,408,000 |
4.03 |
| Doors/Windows |
39,433,000 |
29.38 |
| Finishes |
2,262,000 |
1.69 |
| Specialties |
681,000 |
0.51 |
| Equipment |
205,000 |
0.15 |
| Elevators |
15,661,000 |
11.67 |
| Fire Protection |
2,693,000 |
2.01 |
| Plumbing |
4,753,000 |
3.54 |
| HVAC |
11,693,000 |
8.71 |
| Electrical |
16,138,000 |
12.03 |
| Subtotal Base Building |
$174,034,000 |
$129.68 |
| General Conditions |
$13,923,000 |
$10.37 |
| General Contractor Fee |
5,639,000 |
4.20 |
| Total Base Building |
$193,596,000 |
$144.26 |
| Total Rounded Direct Cost |
$198,167,000 |
$148.00 |
| Cost Distribution |
 |
|
