Three United Nations Plaza (New York City, New York)

 office building, international organization

175-foot, 15-story postmodern office building completed in 1987. Designed by Kevin Roche John Dinkeloo Associates, it is home to some UN Agencies including principally UNICEF the United Nations Children's Fund. The top two floors house apartments for UN employees.

The facade is clad in grey granite with pale-green metal trim. The main, north facade is organized into seven bays, with the lower two floors at the west bay deeply recessed. This bay contains the main entrance, with a bronze-and-glass revolving door set in the rear corner of the bay, and traditional double-doors to its right. At the 2-story base, the bays are separated by broad granite piers that widen into capital-like forms at the tops and bottoms, where they rest on wide granite plinths. Two additional sets of piers extend to the west of the building, continuing the broad lintel band that caps the base, and creating a pair of open-air "entry bays" into the park space behind. To the east of the main entrance, the next three bays have large triple-windows at the ground floor, with rounded lower corners. The next bay has another entrance, with glass double-doors set in a glass wall, and the eastern two bays have loading docks with pale-green roll-down metal gates. All of the 2nd-floor bays have band of fours windows, and all of the window framing at the base is pale-green metal, with similar colored spandrels bewteen the two floors.

The upper floors have a set of paired double-windows in the end bays, with the middle bays alternating this pattern and a pattern of a central double-window and single-window end panes. In both cases, a narrow granite mullion divides the window groupings, and the bays are separated by granite piers with bands of alternating lighter and darker stone. Again, the window framing is pale-green metal.

At the 13th floor each bay has a 4-window band, and the piers are overlaid with pairs of narrow banded "mini piers" instead of the regular banding. Green metal lintels runs across each bay at this floor. The top two floors have a pale-green, ribbed metal mansard roof sloped at a steep angle. The windows bays correspond to those below, except at the end bays on the top floor, where there are only three panes instead of four.

The rear, south-facing facade is very similar to the north facade, but with the banding on the piers beginning at the 8th floor, and also the east end bay at these top floors having its east half open to the air. The west elevation has three bays, with five windows in the center bay, and three in the end bays.