Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
860 Park Avenue #6
Interested in this property?
Active For Sale Co-op

$10,950,000

$2,489 per sq ft

860 Park Avenue #6

Upper East Side, Manhattan

MLS® #RLS20097057

RLS at REBNY

Listing by R New York

4

Bedrooms

5.5

Baths

4,400

Sq. Ft.

1924

Year Built

Quick Summary

Bedrooms 4
Bathrooms 6 full, 1 half
Living Area 4,400 sq ft
Year Built 1924
Ownership Co-op
Maintenance $13,047.24/mo
Neighborhood Upper East Side
Floor 6 of 16

Property Highlights

  • Views: City
  • Exposure: East,North,South facing
  • Fireplace: 2 fireplaces

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 12
Baths 5 Full, 1 Half
Floor 6 of 16
View City
Exposure East,North,South
Cooling Central Air
Pets Yes
Cross Street East 77th Street/East 78th Street
Year Built 1924
Living Area 4,400 sq ft
Architectural Style Prewar
Structure Type None
Block/Lot 1392/0036

Listing History

Event Date Price Change
Listed Jun 11, 2026 $10,950,000 -
Currently Jun 11, 2026 $10,950,000 -

Description

Occupying the entire sixth floor of one of Park Avenue's most distinguished prewar cooperatives, Residence 6 at 860 Park Avenue is a remarkable approximately 4,400-square-foot home that masterfully balances grand-scale entertaining with the comfort and intimacy of everyday living. Designed by the celebrated architectural firm York & Sawyer and completed in 1925, the building remains one of the avenue's most coveted addresses, embodying the elegance, craftsmanship, and enduring quality of New York's golden age. A private elevator landing opens directly into an impressive marble gallery, creating a dramatic sense of arrival and an ideal backdrop for a significant art collection. From there, the residence unfolds with exceptional scale and proportion. The gracious 28-foot living room is bathed in natural light and anchored by one of two stately wood-burning fireplaces, while nearly ten-foot ceilings, recessed cove lighting, and oversized sash windows lend warmth, volume, and architectural distinction. The formal dining room is equally impressive, offering an elegant setting for both intimate dinners and large-scale entertaining. It flows seamlessly into a beautifully appointed chef's kitchen, where timeless yet contemporary custom cabinetry is paired with premium appliances by Miele, Viking, Bosch, and Sub-Zero. Designed with both functionality and entertaining in mind, the kitchen also features a full-size indoor barbecue with commercial-grade exterior venting, a discreet service entrance, and an adjoining breakfast room flooded with natural light. A private five-foot-wide corridor leads to the exceptional primary suite, one of only two residences in the building to enjoy the most expansive bedroom configuration. This serene retreat features a custom walnut dressing room and a luxurious spa-inspired bath clad in travertine marble, complete with dual vanities, a glass-enclosed shower, and a deep soaking tub. Three additional generously proportioned bedrooms, each with substantial closet space and en-suite baths, provide exceptional flexibility for family and guests. A richly paneled cherry wood library, centered around its own marble fireplace, offers a sophisticated and inviting setting for work, reading, or quiet reflection. A staff room with full bath further enhances the home's versatility. Throughout the residence, original prewar details have been meticulously preserved and thoughtfully integrated with modern conveniences, including oak floors with decorative border inlays, tray ceilings, four-zone central air conditioning, integrated surround sound, and abundant custom storage. The apartment has been impeccably maintained and conveys with two private storage units. Perhaps most compelling is the extraordinary level of privacy. With just fifteen residences—one per floor—860 Park Avenue offers a discreet and intimate living experience that is increasingly rare in Manhattan. Ideally situated at the corner of East 77th Street, moments from Central Park, Museum Mile, and the finest shopping and dining of the Upper East Side, the building provides white-glove service, exceptional stewardship, and the timeless appeal of one of Park Avenue's most exclusive addresses. Pets are welcome.

Features & Amenities

Interior Features

Den Entrance Foyer Kitchen Window Pantry In Unit See Remarks Fireplace (2)

Exterior Features

Building Storage

Building Amenities

Elevators

Appliances

Dryer Washer

Building Information

Building Data View Compliance & Permits
Stories 16
Structure None
Style Prewar

Financial Details

Maintenance $13,047.24/mo

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

342

Median Asking Price

$1.61M

Median $/Sqft

$1,474

Avg Days on Market

N/A

New This Week

17

Price Reduced

35%

Sold (30 Days)

60

Median Sale Price

$1.89M

Live data from RLS at REBNY • Updated 6/11/26, 1:32 PM EST

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Location

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860 Park Avenue #6, Upper East Side, New York County • Near East 77th Street/East 78th Street

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1925
Year Built
101 years old
15
Floors
16
Residential Units
R10
Zoning District
Elevator Apartments Historic District: Upper East Side Historic District

Tax & Assessment

Assessed Value: $7,588,800
Land Value: $2,250,000
Exemptions: $0

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

Lot Area: 5,133 SF
Building Area: 67,162 SF
Built FAR: 13.08
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 $13,047.24 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.

The listed interior living area is 4,400 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1924, making it approximately 102 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 the listing broker for weight limits or breed restrictions.

At the current list price of $10,950,000 for 4,400 sq ft, the asking price per square foot is approximately $2,489. 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) 416-7433
MLS® ID: RLS20097057
First Listed: 6/11/2026
On Market: 6/11/2026
Price Changed: 6/11/2026
Contract Date: 6/11/2026

Listing Courtesy of R New York - STEFANI BERKIN

Listing Contact: (212) 688-1000

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 6/11/2026 at 5:32 PM UTC

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