Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $8,850,000

· Closed June 11, 2018

820 PARK Avenue #12
Closed For Sale Co-op

$8,850,000

820 PARK Avenue #12

Upper East Side, Manhattan

MLS® #RLS10484173

RLS at REBNY

Listing by Sotheby's International Realty, Inc.

4

Bedrooms

0.5

Baths

N/A

Sq. Ft.

1926

Year Built

Quick Summary

Bedrooms 4
Bathrooms 5 full, 1 half
Lot Size 5,244 sq ft
Year Built 1926
Ownership Co-op
Maintenance $9,967/mo
Neighborhood Upper East Side
Floor 12 of 15

Property Highlights

  • Fireplace: Wood-burning or decorative fireplace
  • Style: Prewar architecture
  • Character: Pre-war building (1926)

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 8
Baths null Full, 1 Half
Floor 12 of 15
Pets Yes
Year Built 1926
Architectural Style Prewar
Lot Size 5,244 sq ft
Parcel # 1390-0035-00820-000-0000012

Listing History

Event Date Price Change
Listed Jun 11, 2018 $9,500,000 -
Currently May 9, 2026 $8,850,000 -6.8%

Description

This gloriously sunny prewar cooperative residence comprises the entire 12th floor and is distinguished by open exposures in all four directions and significant Park Avenue frontage as well as lovely city views over the charming cityscape of nearby townhouses. The apartment is further enhanced by an exquisite Robert A.M. Stern renovation which was finished to the highest standards. Accessed via a private elevator landing, the curved marble entrance gallery leads into a sun flooded Living Room with fireplace and adjoining Dining Room as well as a beautiful walnut paneled library. Each of these Entertaining Rooms enjoys sun flooded Eastern exposures over Park Avenue. The fabulous entertaining apartment also boasts a super luxurious corner Master Suite with his and hers luxurious bathrooms and extraordinary walk-in closets fitted with walnut and birds eye maple. Beyond there are three further bedrooms, each with beautiful ensuite bathrooms and open city views. The voluminous kitchen is replete with top of the line appliances including SubZero refrigerators and wine cooler, a La Cornue range with a matching venting hood specially designed by Robert Stern and Wolf and Gaggenau cooktop and ovens. A walnut paneled Butlers Pantry, sizable Laundry Room, and Desk Area are conveniently adjacent. Noteworthy features include extraordinary custom millwork and flooring, opulent yet understated finishes, central air conditioning, automated shades and lighting and state-of-the-art electronic systems throughout including iPad-controlled sound, light and climate systems. Flooded with light and fortunate to boast a marvelous location, this residence offers an uber chic and contemporary take on a classic and elegant prewar residence.

Features & Amenities

Interior Features

Fireplace

Exterior Features

Building Roof Deck

Building Information

Building Data View Compliance & Permits
Total Units 12
Stories 15
Style Prewar

Financial Details

Maintenance $9,967/mo
Original Price $9,500,000
Sale Price $8,850,000

The Upper East Side remains the gold standard for classic New York elegance. Known for 'Museum Mile' and its low-traffic, tree-lined streets, the neighborhood offers a refined lifestyle away from the midtown bustle. While famous for its historic cooperatives, the area has seen a recent surge in ultra-luxury new construction condos, particularly along the Second Avenue Subway corridor, making it a top choice for both traditionalists and modern buyers.

Upper East Side Live Market Data

View Neighborhood

Active Listings

341

Median Asking Price

$1.82M

Median $/Sqft

$1,597

Avg Days on Market

N/A

New This Week

18

Price Reduced

28%

Sold (30 Days)

40

Median Sale Price

$1.60M

Live data from RLS at REBNY • Updated 5/9/26, 2:23 AM EST

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Location

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820 PARK Avenue #12, Upper East Side, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1927
Year Built
99 years old
15
Floors
12
Residential Units
R10
Zoning District
Elevator Apartments Historic District: Upper East Side Historic District

Tax & Assessment

Assessed Value: $7,091,100
Land Value: $1,719,000
Exemptions: $0

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 5,244 SF
Building Area: 59,279 SF
Built FAR: 11.3
Allowed FAR: 10

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

Frequently Asked Questions

Common questions about this property

The current listed monthly maintenance are $9,967 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 4 bedrooms and 5 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1926, making it approximately 100 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.

Pet policy requires confirmation with the listing broker.

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) 416-7433
MLS® ID: RLS10484173
First Listed: 6/11/2018
Closed: 6/11/2018
Contract Date: 3/18/2016

Listing Courtesy of Sotheby's International Realty, Inc. - Serena Boardman

Listing Contact: (212) 606-7611

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.

Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 5/9/2026 at 6:23 AM UTC

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