Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

Under Contract – Backup offers may be accepted

733 Park Avenue #4
Interested in this property?
Pending For Sale Co-op

$6,995,000

733 Park Avenue #4

Lenox Hill, Manhattan

MLS® #RLS20054129

RLS at REBNY

Listing by Compass

4

Bedrooms

4.5

Baths

N/A

Sq. Ft.

1972

Year Built

Quick Summary

Bedrooms 4
Bathrooms 5 full, 1 half
Year Built 1972
Ownership Co-op
Maintenance $11,210/mo
Neighborhood Lenox Hill
Floor 4 of 30

Property Highlights

  • Views: City
  • Exposure: South,West facing
  • Climate Control: Central Air

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 9
Baths 4 Full, 1 Half
Floor 4 of 30
View City
Exposure South,West
Heating Central
Cooling Central Air
Pets Yes, CatsOk, DogsOk
Year Built 1972
Structure Type HighRise,MultiFamily
Flooring Hardwood
Furnished Unfurnished
Parcel # 1405-0072-00733-000-0000004
Block/Lot 01405/0072

Listing History

Event Date Price Change
Listed Oct 27, 2025 $6,995,000 -
Price Reduced Feb 11, 2026 $7,650,000 +9.4%

Description

A private, full-floor residence accessed by direct elevator entry with a gracious foyer, this beautifully reimagined Park Avenue home blends timeless sophistication with contemporary California-inspired design. Recently transformed in a complete renovation by acclaimed designer Brock Forsblom and featured in Architectural Digest, it combines Old Hollywood glamour with organic modern warmth—creating a light-filled sanctuary that feels both elegant and effortlessly livable. The dramatic open-plan layout features a gracious living room, formal dining area, and a striking blue-paneled library, each unified by custom oak flooring, crisp crown moldings, and a refined palette of gray and white. Oversized 15-foot-wide windows flood the interiors with western light across Park Avenue, while the seamless flow between rooms makes the home ideal for both grand entertaining and everyday living. The chef’s kitchen anchors the home’s central gathering space, offering top-of-the-line appliances, extensive storage, and a comfortable breakfast area. The primary suite occupies its own private wing, offering an expansive bedroom with serene Park Avenue exposures, a dedicated dressing room with dual walk-in closets, and an en-suite primary bath luxuriously finished with marble surfaces, a soaking tub, and a glass-enclosed shower—creating a refined retreat designed for comfort and privacy. The private bedroom corridor houses three additional bedrooms, including one with an en-suite bath and another that easily serves as a media room or library, offering flexible living options to suit a variety of needs. A maid’s room with en-suite bath, located off the laundry room near the kitchen, provides ideal accommodations for guests or staff. Throughout, Forsblom’s design merges traditional Park Avenue refinement with modern ease. Soft architectural lines, cohesive detailing, and an abundance of natural light give the residence an inviting sense of calm and sophistication. Located at 733 Park Avenue, a full-service cooperative at the corner of 71st Street, residents enjoy 24-hour doorman service, an elevator attendant, fitness center, storage, and the convenience of one of Manhattan’s most prestigious addresses. Pieds-à-terre and pets are welcome.

Features & Amenities

Interior Features

Wet Bar Built In Features Chandelier Entrance Foyer Eat In Kitchen High Ceilings Pantry Recessed Lighting Soaking Tub Bar Walk In Closets Building Washer Dryer Install Allowed Common On Floor Common Area In Unit Flooring: Hardwood

Exterior Features

Private Entrance Private Outdoor Space Under60 Sqft

Building Amenities

Concierge Elevators Fitness Center Storage

Appliances

Cooktop Dishwasher Gas Cooktop Gas Oven Stainless Steel Appliances

Building Information

Building Data View Compliance & Permits
Total Units 30
Stories 30
Structure HighRise,MultiFamily

Financial Details

Maintenance $11,210/mo
Previous Price $7,650,000

Lenox Hill occupies a residential section of the Upper East Side, defined by proximity to Central Park, major medical institutions (Memorial Sloan Kettering, Weill Cornell, Lenox Hill Hospital), and the Madison Avenue retail corridor. Housing stock ranges from large pre-war cooperatives to modern condominiums with East River and skyline views.

Lenox Hill Live Market Data

View Neighborhood

Active Listings

632

Median Asking Price

$1.35M

Median $/Sqft

$1,330

Avg Days on Market

N/A

New This Week

15

Price Reduced

33%

Sold (30 Days)

63

Median Sale Price

$1.20M

Live data from RLS at REBNY • Updated 6/8/26, 10:23 PM EST

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Location

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733 Park Avenue #4, Lenox Hill, New York County

Floor Plans

Floor Plan 1
Floor Plan 2

Building Information

Official NYC property records for this building

1969
Year Built
57 years old
30
Floors
28
Residential Units
R10
Zoning District
Elevator Apartments Historic District: Upper East Side Historic District

Tax & Assessment

Assessed Value: $17,876,700
Land Value: $2,907,000
Exemptions: $0

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

Lot Area: 7,029 SF
Building Area: 115,525 SF
Built FAR: 16.44
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 $11,210 per month. Confirm the exact amount with the listing broker 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 4 bedrooms and 4 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1972, making it approximately 54 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: 3. Contact the listing broker for weight limits or breed restrictions.

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: RLS20054129
First Listed: 10/11/2025
On Market: 10/27/2025
Price Changed: 2/11/2026
Pending Since: 2/27/2026
Contract Date: 9/29/2025

Listing Courtesy of Compass - Philip Scheinfeld

Listing Contact: (917) 446-0523

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 6/9/2026 at 2:23 AM UTC

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