100 United Nations Plaza
100 United Nations Plaza, New York, NY 10017
Midtown East
BBL 1013417503
- 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
- $1,050
- Listing discount
- 4.5%
- Recorded sales
- 293
- On record
- 2003–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 100 United Nations Plaza would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
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.
Architecture and residences
Der Scutt's design is a confident piece of 1980s late modernism — a glass-and-masonry shaft that steps back as it rises to a pyramidal top, a profile engineered as much for the skyline as for the apartments behind it. The setbacks create terraces and balconies on select residences and concentrate the best views on the upper floors, where the eastern exposures over the UN gardens and the East River are the building's signature asset.
The 267 condominium residences range from studios through expansive multi-bedroom layouts and penthouses, with the higher ceilings, modern systems, and efficient floor plans of purpose-built condominium construction. The most coveted homes are the high-floor, east-facing apartments — and any residence with a balcony or terrace — where the river-and-skyline outlook, durable because of the UN's protected campus, is the point of the building. As condominium units, these residences carry the financing and ownership flexibility their co-op neighbors structurally cannot match.
Building operations and ownership
100 United Nations Plaza runs as a full-service condominium: a 24-hour doorman and concierge staff the attended lobby, with a resident superintendent and managing agent on site. The amenity program is substantial — a fitness center with a pool, an attended on-site garage, a resident lounge and business/meeting room, central laundry, and a security system fitting the building's international profile.
As a condominium, the ownership terms are inherently flexible. Financing is not subject to the caps common at Midtown co-ops, so buyers can finance to the level their lender allows. There is no co-op board admissions process — a purchase clears through the condominium's right of first refusal rather than a board package and interview. Pieds-à-terre, trust, LLC, and investment purchases are customary, and subletting is materially freer than at the surrounding cooperatives, making the building a practical choice for owners who want to rent. Pets are welcome, subject to the building's standard policies. For buyers who want a Midtown East address without a co-op board, that combination is the core of the building's case.
Recent sales
Recent closings at this building, curated by The Roebling Team research desk. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Aug 3, 2026 | 3C | 1 BR · 1 BA · 791 sf | $722,500 | $913/sf | -9.7% |
| 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% |
Market read. Most recent trades (2026) cleared a median $1,050/sf across 8 sales. Median listing discount 4.5% 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.
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
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
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