100 United Nations Plaza
100 United Nations Plaza, New York, NY 10017
BBL 1013417503
- Year built
- 1986
- Type
- Condominium
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
- Pets
- Pets permitted; species and limits not stated
- Doorman
- Full-time doorman
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, 2026 to date
- $997
- floor-adjusted, 11 sales
- Listing discount
- 4.5%
- Recorded sales
- 295
- 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 river and skyline views over the UN's low-rise complex.
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.
The address is almost self-explanatory — a full-service condominium at the doorstep of the UN. It is a rare combination in the corridor: 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, depending on floor and exposure, is the point of the building. As condominium units, these residences are bought without co-op board admission.
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, there is no co-op board admissions process — a purchase clears through the condominium's application and right of first refusal rather than a board package and interview. Confirm financing, pied-à-terre, trust, LLC, investment-purchase and subletting rules in the current declaration, bylaws and house rules. Pets are welcome, subject to the building's standard policies. For buyers who want a Midtown East address without a co-op board, that is the core of the building's case.
Pets and in-unit washer/dryer
- Pets
- Pets permitted; species and limits not statedSource: The Roebling Team's building profile
- In-unit washer/dryer
- Not verified
Considering an apartment here? Send Corey the listing to confirm the pet and washer/dryer rules for that apartment.
Own an apartment here? Request an apartment-specific pricing review.
Monthly carrying charges in recent sales
- Common charges + taxes, per room
- $932 per room a monthMedian of 17 recorded sales since October 2023Source: recorded sales, refreshed October 2026
- Common charges + taxes, per square foot
- $3.07 per square foot a monthMedian of 19 recorded sales since October 2023Source: recorded sales, refreshed October 2026
- Common charges alone, per square foot
- $1.64 per square foot a monthMedian of 30 listings since October 2023 that give the annual taxSource: listing records, refreshed October 2026
- Real estate taxes alone, per square foot
- $1.38 per square foot a monthMedian of 30 listings since October 2023 that give the annual taxSource: listing records, refreshed October 2026
Common charges plus real estate taxes, combined into one monthly figure the way New York condominium listings show them. Add a mortgage payment for the monthly outlay. The split into common charges and taxes comes from the listings that also give the annual tax, a different sample, so the two lines need not add up exactly to the combined median; a tax abatement can hold taxes below the full amount until it expires. A summary of recorded sales and listings, not a current bill; charges change.
Building staffing and amenities
- Doorman
- Full-time doormanSource: The Roebling Team's building profile
- Concierge
- YesSource: recent listing records
- Attended lobby
- YesSource: The Roebling Team's building profile
- Live-in superintendent
- YesSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of City Planning records (PLUTO)
- Amenities noted
- Fitness room, residents' lounge, garage, laundry roomSource: The Roebling Team's building profile
Staffing and amenities as our building profile and recent listing records describe them. A feature not listed is not confirmed absent. Outdoor space, parking and some facilities can belong to particular apartments or to a separate owner; confirm access for the specific apartment.
Recent sales
Recent closings at this building, from The Roebling Research Library. 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 |
|---|---|---|---|---|---|
| Sep 29, 2026 | 14F | 1 BR · 1 BA · 680 sf | $690,000 | $1,015/sf | -10.4% |
| Sep 2, 2026 | 5A | 2 BR · 2.5 BA · 1,327 sf | $1,400,000 | $1,055/sf | -6.7% |
| Aug 27, 2026 | 8BC | 4 BR · 3.5 BA · 2,139 sf | $1,560,000 | $729/sf | -32.0% |
| 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% |
Market read. Most recent trades (2026 to date) cleared a median $997/sf (floor-adjusted) across 11 sales. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. 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; each condominium apartment is its own tax lot). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. 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.
Closed rents at 100 United Nations Plaza, last 36 months
| Size | Leases | Median / month |
|---|---|---|
| 1 bedroom | 22 | $4,550 |
| 2 bedroom | 13 | $7,500 |
| 3 bedroom | 3 | $13,900 |
| 4 bedroom | 2 | $22,000 |
40 closed leases, October 2023 to September 2026. Most recent lease September 2026. Sizes with fewer than 2 leases are not shown. Compiled by The Roebling Team at Compass from closed leases.
What would your apartment rent for?
The figures above are the building's closed leases. Enter your apartment and I'll send you what yours would rent for, from comparable leases at 100 United Nations Plaza and nearby.
At the recent median sale of $1.4M (17 sales in the past 24 months, since October 31, 2024), a buyer putting 25% down would pay about $60,353 to close, or 4.3% of the price.
- Mansion tax: $14,000
- Mortgage recording tax: $20,213
- Title insurance: $6,300
- Attorneys, lender, building fees, reserves and filings: $19,840
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
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What to know if you’re buying
The building offers condominium ownership without co-op board admission: a purchase clears through the condominium's application and right of first refusal rather than a co-op board package. Confirm financing, pied-à-terre and investment-use rules in the current declaration, bylaws and house rules.
Make floor and exposure the center of your diligence. The east-facing river and skyline views, which vary by floor and position, 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 river views and condominium ownership in Midtown East, this is a strong option.
What to know if you’re selling
The condominium structure and the views are your marketing core. Condominium ownership without a co-op board widens the buyer field; confirm the financing, subletting and pied-à-terre rules before marketing them. The Der Scutt pyramidal silhouette and the east-facing outlook over the UN gardens and East River are 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 runs through the condominium's application and right-of-first-refusal process rather than a co-op board admission, which is itself a selling point; confirm the current requirements and timing.
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
More Midtown East buildings
- 50 United Nations Plaza — 2015 condominium by Foster + Partners
- Park Avenue Place, 60 East 55th Street — 2003 condominium by Kohn Pedersen Fox (KPF)
- 100 East 53rd Street — condominium by Foster + Partners
- 110 East 57th Street — 1957 co-op
- 117 East 57th Street (The Galleria) — 1975 condominium
- Malabar Residences, 126 East 57th Street — condominium
The neighborhood
For the full corridor — architecture, transit, and pricing across Midtown East — read The Roebling Team Guide to Midtown East.
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.
Considering a move at 100 United Nations Plaza?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
646.939.7375 · c.cohen@compass.com