| Architectural Style |
French Second Empire |
| Construction Dates |
1871 - 1888 (17 years total) |
| Supervising Architects |
Alfred Mullett (1869-1874), William Potter (1875-1875), Orville Babcock (1875-1877), Thomas Lincoln Casey (1877-1888) |
| Chief Designer |
Richard Ezdorf |
| Total Cost |
$10,038,482.42 |
Building Size: |
| Total Building Area |
662,598 GSF (15.21 acres or 11 1/2 football fields) |
| Number of Levels |
Basement, Ground, Floors 1 through 5 |
| Number of Rooms |
553 |
| Exterior Columns |
900 |
| Interior Doors |
1,314 |
| Exterior Windows |
1,572 |
| Bronze Stair Balusters |
4,004 |
| Number of Steps |
1,784 (76 less than the Empire State Building with 1,860 steps) |
| Number of Stairs |
65 |
| Total Corridor Length |
9,160'-1" or 1.73 miles (2.793 kilometers) |
| Number of Fireplaces |
151 (83 remain) |
Materials: |
- Granite from Fox Islands, Maine used for courtyard walls and Basement and Ground floor exterior walls
- Granite from Richmond, Virginia used for the exterior walls on floors 1 - 5
- Exterior cast iron used for window frames, sculpture, 30 chimneys, cornices, and roof trim
- Interior cast iron used for columns, pilasters, wall and floor panels, library bookshelves, and decorative trim
- White marble floor tiles are from Vermont; Black floor tiles are limestone from New York
- 8 granite staircases cantilevered from the wall
- Existing marble or wood fireplaces originally used as decorative ventilation features not for heat
|