For Sale · Listing by Corcoran Group
100 UNITED NATIONS Plaza #PH50B
Turtle Bay, Manhattan
$4,900,000
100 UNITED NATIONS Plaza #PH50B
MLS® #RLS20108985
Listing by Corcoran Group
- 3
- Bedrooms
- 3.5
- Baths
- 3,023
- Sq. Ft.
- 1986
- Year Built
Quick Summary
Property Highlights
- Views: Panoramic, River, Skyline
- Exposure: North,South,West facing
- Outdoor Space: Wrap Around
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 14, 2026 | $4,900,000 | - |
| Currently | Oct 31, 2026 | $4,900,000 | - |
Recent Sales in This Building
What other apartments here closed for in the last three years, as reported to the REBNY Listing Service (RLS).
| Closed | Unit | Beds | Sold For | Per Sq Ft |
|---|---|---|---|---|
| Oct 14, 2026 | Unit 16D | 1 BR | $790,000 | $1,060 |
| Sep 29, 2026 | Unit 14F | 1 BR | $690,000 | $1,015 |
| Sep 2, 2026 | Unit 5A | 2 BR | $1,400,000 | $1,055 |
Description
100 United Nations Plaza Penthouse Duplex with Panoramic NYC Skyline Views Experience elevated Manhattan living in this rarely available 50th-floor penthouse duplex at 100 United Nations Plaza Condominium , featuring two expansive wrap-around terraces and breathtaking panoramic views of the New York City skyline, East River, and iconic landmarks. Located in the heart of Turtle Bay in Midtown East , this mint-condition luxury condominium offers approximately 3,023 square feet of interior living space and 1,113 square feet of private outdoor space. The exceptional three-bedroom, three-full-bathroom, two-powder-room residence is thoughtfully designed, with expansive living and entertaining spaces on the main level and three private bedroom suites upstairs. A dramatic approximately 55-foot gallery welcomes you into the main living level, framed by floor-to-ceiling windows and unobstructed western exposures. The expansive corner living room features a tray ceiling, recessed lighting, wet bar, concealed flat-screen television, and access to the lower wrap-around terrace. The adjoining corner dining room also opens onto the terrace, creating an ideal setting for outdoor dining, entertaining, and enjoying spectacular sunsets over Manhattan. The spacious, windowed kitchen is appointed with custom cabinetry, granite countertops, marble wall tile, and professional-grade Viking, Wolf, and Sub-Zero appliances. A pair of dishwashers and a full-size wine refrigerator add convenience for entertaining. Just beyond the kitchen, a stacked washer and dryer and a custom-designed, windowed home office with an en-suite powder room provide additional functionality. The upper level is dedicated to three generously proportioned bedrooms, each with its own en-suite windowed bathroom. The private corner primary suite offers direct access to the upper wrap-around terrace, five built-in wardrobes, and a custom-outfitted walk-in closet. Its luxurious windowed bathroom features floor-to-ceiling marble, an oversized glass-enclosed shower with dual built-in rain showerheads, and a custom vanity with two vessel sinks. The second bedroom enjoys a corner exposure and sliding-door access to the terrace, while the third bedroom features a bright southern exposure. A second powder room on this level adds convenience for residents and guests. Additional features include touchscreen remote-controlled central heating and air conditioning, automatic roller shades throughout, custom lighting, a built-in audio system, custom cabinetry, hardwood floors, and recessed lighting. Both private wrap-around terraces have been upgraded with halogen lighting and a watering system. White-Glove Luxury Living at 100 United Nations Plaza Situated on East 48th Street at First Avenue, 100 United Nations Plaza is a distinguished full-service luxury condominium in Manhattan's Turtle Bay neighborhood . Residents are welcomed by beautifully landscaped gardens and cascading waterfalls. Building amenities and services include a 24-hour doorman, valet and concierge service, an on-site management office, a renovated lobby and residents' lounge, a recently renovated fitness center, a common laundry room, and direct access to an attended parking garage. Conveniently located near Midtown East transportation, neighborhood shopping, restaurants, and the United Nations, the building offers an exceptional combination of privacy, service, and accessibility. One dog per residence is permitted, with a maximum weight of 50 pounds. Showings by appointment only.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Turtle Bay
View All Turtle Bay ListingsTurtle Bay is a refined and diplomatic corridor, home to the United Nations Headquarters and numerous international consulates. The neighborhood is famous for the historic Turtle Bay Gardens and its tree-lined streets. Real estate in Turtle Bay offers a wide selection, from elegant pre-war townhouses to modern luxury condominiums that provide a low-traffic residential atmosphere just steps away from the bustle of Midtown.
Turtle Bay Live Market Data
View NeighborhoodActive Listings
112
Median Asking Price
$1.30M
Median $/Sqft
$1,443
Avg Days on Market
N/A
New This Week
7
Price Reduced
32%
Sold (30 Days)
16
Median Sale Price
$890K
Live data from RLS at REBNY • Updated 10/31/26, 12:28 PM EST
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Location
100 UNITED NATIONS Plaza #PH50B, Turtle Bay, New York County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)
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Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed common charges are $5,638 per month. Confirm the exact amount with Milton Coste before making an offer.
This property has 3 bedrooms and 3 full bathrooms and 2 half bathrooms.
The listed interior living area is 3,023 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1986, making it approximately 40 years old.
This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.
Pets are permitted at this property: 50 lbs 1 Dog Allowed for Unit Owners,Building Pets Allowed Comments:50 lbs 1 Dog Allowed for Unit Owners. Contact Milton Coste for weight limits or breed restrictions.
At the current list price of $4,900,000 for 3,023 sq ft, the asking price per square foot is approximately $1,621. This figure is for reference only and may differ from appraised or assessed values.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or [email protected]. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of Corcoran Group - Michael J Weiss
Listing Contact: (917) 656-8444
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
How working with a buyer's agent works: I work for you, not the seller. Before I show you anything, New York brokerage rules ask us to put that in writing: an agreement and a disclosure that say I work for you and negotiate on your behalf. The agreement is non-exclusive: you can work with other agents, it runs for a short fixed term we agree on, and you can end it with a note. You may attend open houses independently without an agreement. Read how it works
RLS Data display by Keller Williams NYC. Data last updated on 10/31/2026 at 4:28 PM UTC
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Sale history, taxes, violations and comps for this unit
Before you bid
Pre-Offer Report: 100 UNITED NATIONS Plaza #PH50B
At $4,900,000, the listing leaves out what decides the offer: the recorded sale history, the tax and abatement picture, open building violations and permits, and the closed sales that set the price. Milton prepares the report from public records. No obligation.
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What happens next
- 1Milton emails you today.
- 2A short call about what you want and when.
- 3The agreement arrives electronically after the call. Then showings.
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You're contacting Milton Coste, a buyer's agent. Before any private showing, New York brokerage rules require a short non-exclusive agreement. Milton walks you through it before you sign anything. Broker commissions are not set by law and are fully negotiable. How working together works.
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Quick Facts
Monthly Costs Estimate
$980,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
Mansion tax applies at this price point
New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $3M to $4,999,999 at 1.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$73,500
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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