For Sale · Listing by Sothebys International Realty
870 United Nations Plaza #23B
Midtown East, Manhattan
$2,800,000
870 United Nations Plaza #23B
MLS® #RLS20120550
Listing by Sothebys International Realty
- 3
- Bedrooms
- 3
- Baths
- N/A
- Sq. Ft.
- 1966
- Year Built
Quick Summary
Property Highlights
- Climate Control: Central Air
- Parking: Private garage
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Oct 13, 2026 | $2,800,000 | - |
| Currently | Oct 13, 2026 | $2,800,000 | - |
Description
Beautifully renovated by McBride & Associates Architects with interiors by Kari McCabe Inc., Residence 23B is an exceptionally spacious High Floor Corner home in Mint Move-in Condition. Oversized windows and multiple exposures fill the interiors with natural light while framing expansive city, skyline, East River, and bridge views. Grandly Scaled Entertaining: • Gracious Entry Gallery • Expansive 28'10" x 26'7" Corner Living and Dining Room • Wall-to-Wall oversized windows with sweeping city, skyline, and East River views from Northern and Western Exposures • Beautiful hardwood floors and custom lighting throughout Windowed Eat-In Kitchen • Spacious windowed Eat-In Kitchen with a dedicated breakfast area • Custom wood cabinetry and extensive storage • Stone countertops and backsplash • Dacor Gas Range • Miele Dishwasher • Separate Laundry Room with Miele Washer and Dryer • Excellent flow to the Gallery and Entertaining Spaces Private Bedroom Wing • Substantial Primary Bedroom with open views • Large Walk-In Closet and additional closet • En-Suite Primary Bathroom • Second Bedroom with a Full Bathroom • Library/Bedroom with an En-Suite Bathroom and excellent closet space • Powder Room • Thoughtfully designed abundant storage throughout *Staff Room Available For Purchase Separately* • Asking Price: $275,000 • Separate, private suite located on the seventh floor • Spacious 14'7" x 10'10" Office/Staff Room • Hardwood floors and recessed lighting • Renovated Full Bathroom with a glass-enclosed shower, stone tile, and contemporary fixtures • Flexible use as a Home Office, Guest Suite, Staff Room, or private retreat Building & Lifestyle: 860/870 United Nations Plaza was designed by master architects Harrison & Abramovitz and is one of the world’s most iconic residences. This architecturally prestigious luxury cooperative boasts the longest private driveway in the city, leading to a grand triple-height Lobby. A staff of 53 provides residents with 24-hour service and security. Superb amenities include an on-site Management Office, Fitness Center, Pilates Studio, Private Residents Club 39 with a lounge, kitchen, and entertainment rooms, two Conference Rooms, Golf Simulator, Billiards Room, in-house dry cleaning service, Rooftop Sun Decks, and a Garage. Pets are welcome. Apartments may be purchased in a Qualified Personal Residence Trust, and foreign buyers are welcome with USA-based assets. 75% Financing Permitted. Maintenance: $4,448.82/month. Utilities: $1,269.69/month. Cable and Internet: $91.23/month. Window Washing: $58.65/month. Total Monthly Charges: $5,868.39. 3% Flip Tax paid by Buyer. A rare High Floor Corner offering, Residence 23B combines beautifully renovated interiors, grand proportions, abundant natural light, and impressive open views. The separate Office/Staff Room provides an exceptional degree of flexibility within one of Manhattan’s most distinguished residential addresses.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Building Information
Financial Details
About Midtown East
View All Midtown East ListingsMidtown East is a dynamic hub that is the gateway to Manhattan for many. Home to iconic landmarks like Grand Central Terminal and the Chrysler Building, the neighborhood offers unparalleled convenience for commuters and professionals. The residential landscape is a mix of high-rise luxury towers and historic side-street cooperatives, providing a wide array of options for those who want to be at the center of the city's energy.
Midtown East Live Market Data
View NeighborhoodActive Listings
245
Median Asking Price
$1.59M
Median $/Sqft
$1,723
Avg Days on Market
N/A
New This Week
10
Price Reduced
24%
Sold (30 Days)
22
Median Sale Price
$1.60M
Live data from RLS at REBNY • Updated 10/13/26, 1:06 PM EST
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Location
870 United Nations Plaza #23B, Midtown East, 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)
Want help estimating ownership costs or understanding building compliance? Let's discuss
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 monthly maintenance are $4,449 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 3 full bathrooms.
According to MLS records, the building was constructed in 1966, making it approximately 60 years old.
This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.
Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or milton@miltoncoste.com. 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 Sothebys International Realty - Nikki Field
Listing Contact: (212) 606-7669
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 10/13/2026 at 5:06 PM UTC
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Sale history, taxes, violations and comps for this unit
Before you bid
Pre-Offer Report: 870 United Nations Plaza #23B
At $2,800,000, 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.
Midtown East Market Update
22 sales last 30 days · $1.59M median · 11.1 months supply
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Quick Facts
Monthly Costs Estimate
$560,000
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 $2M to $2,999,999 at 1.25%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$35,000
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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