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640 PARK Avenue 9THFLOOR

$19,995,000

MLS# RLS20070171 · Lenox Hill

Price reduced$25,000,000 to $19,995,000$5,005,000 (20%) off

Originally listed at $25,000,000. Price last reduced on October 6, 2026.

Listed February 3, 2026 · 283 days on the market

5 Beds 6 Baths

About This Property

Be sure to reference the video for additional context.

At the foot of Lenox Hill is 640 Park Avenue, which was originally developed by the Fullerton Weaver Realty Company in 1914.

A century ago, The Real Estate Record & Guide, the industry rag of its day, wrote that architect J.E.R. Carpenter "was the father of the modern large apartment here in New York." Later Christopher Gray of The NYT wrote that, "In 1914 Mr. Carpenter designed, and again partly owned, the impressive 640 Park, at 66th Street. It is all limestone, with double sets of Florentine-style windows and one five-bedroom apartment per floor. This marked his arrival into the stratosphere of luxury apartments, with a separate gallery, reception room, wine closet and six servants' rooms, including a separate section for the butler and the 'second man.'"

Upon arriving on the 9th floor and your own private elevator landing, Gray's description of Carpenter's design comes off the page. Once you indeed enter into the commodious, nearly 375 sqft gallery, which is perfect for art, you are struck by the extraordinary volume of this home. As you immerse yourself into the space you realize that your experiencing something different, something special, 10' ceilings and innumerable large outward facing windows, four exposures, views and streams of sun and light throughout. The gorgeous and dramatic SE facing living room and oversized dining room were designed and intentionally positioned lengthwise along Park Avenue to enhance that light. These rooms span nearly 70' with open views overlooking the historic Armory which was built in 1879. Just off the gallery is a lovely south facing library and an unusual and seductive 7' wide and nearly 48' long corridor which leads you to the secluded private wing and further reveals the unique proportion and expansiveness of this full floor residence, currently 15 rooms, inclusive of 5 bedrooms, 6 baths and two staff rooms. To fully grasp the wonders of this home, it must be experienced.

This boutique cooperative on the NW corner of 66th Street, is one of the select-few truly exclusive and distinguished cooperatives on all of Park Avenue. In close proximity to world class restaurants, shopping, entertainment, art and culture, including the Metropolitan Museum of Art, The Frick Collection, Lincoln Center the list goes on the location is unparalleled. There are full time doormen, a resident manager, and a large storage bin is included. There are no summer work rules and pied-a-terres and 35% financing are permitted. There is a 2.5% flip tax payable by the purchaser.

Agent's Note

From Curtis Bain. Details about the apartment are drawn from the listing information provided through RLS by Brown Harris Stevens Residential Sales LLC.

The 9th floor opens onto its own private elevator landing, and the gallery beyond runs nearly 375 square feet under 10-foot ceilings. Ceilings that high give the rooms volume and more flexibility with furniture, though it's the layout that makes them work day to day. I like that the gallery is big enough to hang art without feeling like a passage.

The living room and oversized dining room sit lengthwise along Park Avenue, facing southeast, and together they span nearly 70 feet. Both have open views over the Park Avenue Armory. The library faces south and opens off the gallery. On the winter solstice, a south-facing window gets about 8.5 hours of direct sun, though nearby buildings can block some of that light.

A corridor 7 feet wide and nearly 48 feet long links the main rooms to a private wing. There are five bedrooms, six bathrooms and two staff rooms, 15 rooms in all, so the wing has room for a guest room or an office away from the living space.

The building has full-time doormen, a resident manager, a concierge and a bike room. A large storage bin is included with the apartment. The listing says washer and dryer are allowed and pets are allowed. It also says 35 percent financing is permitted, pied-a-terres are permitted and there aren't any summer work rules. The listing notes a 5 percent flip tax payable by the purchaser, which your attorney can review with you.

The location works on foot. You're about 5 minutes from Central Park, and the Frick Collection is about 7 minutes away. The 6 train at 68 St-Hunter College is about 4 minutes away, and the 4, 5, 6, N, R and W trains at Lexington Av/59 St are about 9 minutes. Morton Williams is about 6 minutes for groceries, and Whole Foods Market is about 7 minutes.

Quick answers+

Does the building have a doorman?

Yes, the building has full-time doormen and a resident manager.

Does the property have an elevator?

The 9th floor opens onto a private elevator landing.

Are pets allowed?

Yes, pets are allowed in the building.

Property Features

Policies

  • Pets allowed

Home features

  • Washer/dryer allowed

Building amenities

Services and facilities

  • Bike room
  • Concierge

Estimate

Monthly Cost & Closing Costs

The rate is a placeholder, not a quote. Enter the one your lender gives you.

$122,219 / month

  • Principal and interest$101,106
  • Maintenance$21,113

Due at closing

  • Down payment (20%)$3,999,000
  • NYS “mansion tax” (3.5%)$699,825

Co-op share loans aren't subject to mortgage recording tax. Not included: attorney, title insurance, lender and appraisal fees, board application and move-in fees, flip tax and prepaid items. Estimates only, based on the published New York State rates. Your attorney and lender will confirm the real figures.

Location & Nearby

Map

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640 PARK Avenue 9THFLOOR

Subway

  • 668 St-Hunter CollegeAbout 4 min walk · Accessible
  • MQLexington Av/63 StAbout 5 min walk · Accessible
  • 456NRWLexington Av/59 StAbout 9 min walk
  • NRW5 Av/59 StAbout 10 min walk

Parks

  • Central ParkAbout 5 min walk
  • St. Catherine's ParkAbout 11 min walk

Public schools · Elementary schools

  • East Side Elementary School, PS 267About 8 min walk
  • Ella Baker SchoolAbout 11 min walk
  • P.S. 183 Robert L. StevensonAbout 14 min walk

Middle schools

  • J.H.S. 167 Robert F. WagnerAbout 14 min walk

High schools

  • Vanguard High SchoolAbout 11 min walk
  • Talent Unlimited High SchoolAbout 11 min walk

Colleges & universities

  • Hunter College (CUNY)About 4 min walk
  • New York School of Interior DesignAbout 6 min walk
  • Marymount Manhattan CollegeAbout 10 min walk
  • Louis V Gerstner Grad SchAbout 15 min walk

Museums

  • The Frick CollectionAbout 7 min walk
  • Whitney Museum of American ArtAbout 11 min walk
  • Mount Vernon Hotel Museum & GardenAbout 16 min walk
  • Museum of Modern Art (MoMA)About 18 min walk

Walking times are estimates. Schools shown are the nearest public and charter schools and are not zone assignments; a nearby school is not necessarily the one an address is zoned for. Confirm zoning with the NYC Department of Education. Sources: MTA, NYC Parks and NYC Department of City Planning open data.

The Neighborhood

About Lenox Hill

A refined Upper East Side enclave of prewar elegance, Central Park proximity, and Madison Avenue prestige.

Walkability

9/10

Public transit

9/10

Schools

9/10

Dining

9/10

Groceries & parks

9/10

Explore Lenox Hill

Listing Courtesy of Brown Harris Stevens Residential Sales LLC

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RLS: Real Estate Board of New York Residential Listing Service

This 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.