- Year built
- 1986
- Type
- Condominium
- Landmark
- No
Every recorded sale at this building, 2003–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $1,066
- Listing discount
- 5.1%
- Recorded sales
- 282
- On record
- 2003–2026
100 United Nations Plaza is one of the defining residential towers of the Turtle Bay skyline — a 52-story condominium rising directly across First Avenue from the United Nations, with its stepped, pyramidal crown a recognizable silhouette on the East River. Designed by Der Scutt, the architect best known for the original Trump Tower, with Schuman, Lichtenstein, Claman & Efron as architect of record, the building opened in 1986 as one of the era's premier condominiums, conceived to capture the river and skyline views that the UN's low-rise complex permanently protects.
The building's enduring appeal rests on two things condominium buyers prize: views and ownership flexibility. Because the United Nations campus and its gardens sit between the tower and the East River, the open eastern outlooks toward the river, Roosevelt Island, and the skyline are unusually durable — there is little prospect of new construction blocking them. And as a condominium rather than a co-op, 100 United Nations Plaza offers the financing latitude, ownership flexibility, and resale liquidity that distinguish condo ownership from the board-governed co-ops that dominate Midtown East.
For an international or diplomatic buyer, the address is almost self-explanatory — a full-service condominium at the doorstep of the UN. For any buyer, it is a rare combination in the corridor: protected high-floor views, a deep amenity package, and condominium ownership in a single, well-known tower.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $185,235/yr
- Per unit / month range
- $0 – $65
Recent sales
Recent closings at this building, curated by The Roebling Team research desk. Apartment-level facts are independently verified before publishing; sale prices reflect the recorded transfer amount at the NYC Department of Finance.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Apr 30, 2026 | 22DE | 3 BR · 3.5 BA · 2,066 sf | $2,250,000 | $1,089/sf | -6.1% |
| Apr 3, 2026 | 3D | 1 BR · 1 BA · 745 sf | $840,000 | $1,128/sf | -4.0% |
| Mar 30, 2026 | 35E | 1 BR · 1.5 BA · 1,242 sf | $1,247,356 | $1,004/sf | -3.7% |
| Mar 2, 2026 | 7G | 2 BR · 2.5 BA · 1,256 sf | $1,350,000 | $1,075/sf | -5.3% |
| Feb 10, 2026 | 20E | 2 BR · 2 BA · 1,321 sf | $1,680,000 | $1,272/sf | -5.4% |
| Feb 3, 2026 | 38AE | 4 BR · 3.5 BA · 2,978 sf | $2,940,000 | $987/sf | -5.2% |
| Jan 15, 2026 | 33AB | 3 BR · 3.5 BA · 3,129 sf | $3,200,000 | $1,023/sf | -23.8% |
| Sep 18, 2025 | 8A | 2 BR · 2.5 BA · 1,327 sf | $1,350,000 | $1,017/sf | -3.6% |
Market read. Most recent trades (2026) cleared a median $1,066/sf across 7 sales. Median listing discount 5.1% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Other recent transfers
| Date | Unit | Price |
|---|---|---|
| Dec 10, 2009 | 45B | $899,000 |
| Jun 30, 2005 | 41D | $1,950,000 |
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01341-7503) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage from recorded condo declarations and offering plans.
What to know if you’re buying
The building offers what its co-op neighbors structurally cannot: condominium ownership with flexible financing, no board admissions gauntlet, and freedom to use the apartment as a pied-à-terre, an investment, or a primary home. A purchase clears through the condominium's right of first refusal — a far lighter, more predictable process than a co-op board package — which is part of why the building attracts international and investment buyers.
Make floor and exposure the center of your diligence. The durable east-facing river and skyline views are the asset; confirm a given apartment's exposure, whether it includes a balcony or terrace, and its renovation state and ceiling height. Review the condominium's common charges, real-estate taxes, and reserve position, and weigh the on-site garage, pool, and fitness center as quality-of-life and carrying-cost factors. For a buyer who wants protected views and condominium flexibility in Midtown East, this is one of the corridor's strongest options.
What to know if you’re selling
The condominium structure and the protected views are your marketing core. Flexible financing, no co-op board, and freedom to sublet or hold as a pied-à-terre widen the buyer field well beyond what a Midtown co-op can reach — including the international and investment buyers the UN address naturally attracts. The Der Scutt pyramidal silhouette and the durable east-facing outlook over the UN gardens and East River are durable differentiators worth naming.
Price to floor, exposure, and outdoor space. High-floor, east-facing residences and homes with balconies or terraces should be benchmarked against the building's best comparable sales and the broader Turtle Bay condominium set, while renovated kitchens and baths earn clear premiums. A resale clears through the condominium's right of first refusal on condominium timelines — a faster, more predictable path that is itself a selling point to the flexibility-minded buyer this building draws.
Comparable buildings
If you're considering 100 United Nations Plaza, also evaluate these nearby Midtown East and East River condominiums and co-ops:
- 845 United Nations Plaza — the Trump World Tower condominium across from the UN
- 860 United Nations Plaza — a landmark mid-century cooperative on the UN gardens
- 870 United Nations Plaza — its twin-tower co-op neighbor on First Avenue
- 400 East 51st Street — The Grand Beekman, a full-service Midtown East building
- 2 Beekman Place — a coveted Beekman enclave cooperative
The Roebling Team at 100 United Nations Plaza
The Roebling Team at Compass specializes in Midtown East, Turtle Bay, the United Nations corridor, and the broader East River condominium and co-op market. We publish this profile because buyers and sellers evaluating a UN-corridor condominium deserve building-specific intelligence — the durability of the views, the condominium's ownership flexibility, the amenity program, and where individual lines and exposures sit in value.
If you're considering a purchase or sale at 100 United Nations Plaza, a 30-minute consultation is the right starting point.
Get the full picture on this building.
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