Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
428 Columbus Avenue #PH

For Sale · Listing by Compass

428 Columbus Avenue #PH

Upper West Side, Manhattan

$9,950,000

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Active For Sale Co-op

$9,950,000

$1,883 per sq ft

428 Columbus Avenue #PH

Upper West Side, Manhattan

MLS® #RLS20113773

RLS at REBNY

Listing by Compass

5
Bedrooms
5.5
Baths
5,285
Sq. Ft.
1900
Year Built

Quick Summary

Bedrooms 5
Bathrooms 6 full, 2 half
Living Area 5,285 sq ft
Year Built 1900
Ownership Co-op
Maintenance $9,383/mo
Neighborhood Upper West Side
Floor 1 of 6

Property Highlights

  • Views: City, Park Greenbelt
  • Exposure: North,South,West facing
  • Outdoor Space: Terrace, Balcony, Rooftop

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 9
Baths 5 Full, 2 Half
Floor 1 of 6
View City, Park Greenbelt
Exposure North,South,West
Pets Yes
Year Built 1900
Living Area 5,285 sq ft
Structure Type MixedUse
Furnished Unfurnished
Block/Lot 01211/9033

Listing History

Event Date Price Change
Listed Sep 11, 2026 $9,950,000 -
Currently Sep 11, 2026 $9,950,000 -

Description

Townhouse Scale, Penthouse Views This remarkable five-bedroom residence brings together qualities rarely found in a single Manhattan home: the privacy and expansive proportions of a townhouse, the light and views of a penthouse, and multiple levels of private outdoor space. Perched above Columbus Avenue and overlooking the park and grounds of the American Museum of Natural History, the home unfolds across a series of generous living and entertaining spaces. A nearly private elevator opens to a residence of exceptional width, depth, and volume, with soaring ceilings, immense windows, and exposures in multiple directions. At its heart is the extraordinary Great Room. Dramatic yet inviting, it features a distinctive fireplace and broad eastern views over the museum grounds, along West 81st Street to the towers of the Beresford, with the Midtown skyline to the south. Its scale accommodates both intimate evenings and large gatherings with ease. The principal east-facing terrace, located on the top floor, offers a sweeping outlook over the museum grounds to Central Park and beyond. Additional terraces create multiple opportunities for outdoor living, dining, entertaining, and gardening. To the west, the residence rises above the surrounding buildings, revealing the Upper West Side stretching toward the horizon. The primary suite occupies an entire floor, creating a true private retreat with a wall of windows, sweeping views, a generous dressing area, and a sumptuous bath. Each of the four additional bedrooms has its own en suite bathroom, offering unusual privacy for family and guests. Above the primary suite, a newly completed guest or entertainment suite includes a bathroom and kitchenette and is flanked by terraces to the east and west. A well-appointed kitchen, additional living areas, a dedicated laundry room, abundant closets, and substantial storage support the practical rhythms of everyday life. The residence offers the freedom to live expansively: children can play, friends can gather, and dinners and celebrations can unfold seamlessly. Its location places many of the city’s leading schools, restaurants, parks, museums, and cultural institutions close at hand. Its remarkable proportions and flexible configuration offer the next owner an opportunity to preserve what is distinctive or reimagine the interiors for a new generation. Few Manhattan homes combine this degree of privacy, scale, light, outdoor space, and commanding views. With the intimacy of a private house and the city unfolding below, 428 Columbus Avenue presents an Upper West Side living experience that cannot easily be replicated. Please note: Square footage is approximate and should be independently verified. Some images have been virtually staged for illustrative purposes. Architectural features, dimensions, and views have not been altered.

Features & Amenities

Interior Features

Walk In Closets In Unit See Remarks Fireplace (1)

Exterior Features

Balcony Private Outdoor Space Over60 Sqft Terrace Balcony Rooftop

Building Amenities

Elevators

Appliances

Dryer Washer

Building Information

Building Data View Compliance & Permits
Total Units 3
Stories 6
Structure MixedUse

Financial Details

Maintenance $9,383/mo

The Upper West Side (UWS) is celebrated for its cultural richness and architectural grandeur. Set between Central Park and Riverside Park, the neighborhood provides direct access to green space within the urban grid. Residents enjoy easy access to Lincoln Center, the American Museum of Natural History, and a popular culinary scene. The real estate landscape is famous for its historic brownstones and iconic 'white-glove' apartment buildings along Central Park West and Riverside Drive.

Upper West Side Live Market Data

View Neighborhood

Active Listings

417

Median Asking Price

$1.40M

Median $/Sqft

$1,576

Avg Days on Market

N/A

New This Week

91

Price Reduced

20%

Sold (30 Days)

85

Median Sale Price

$1.34M

Live data from RLS at REBNY • Updated 9/11/26, 7:06 PM EST

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Location

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428 Columbus Avenue #PH, Upper West Side, New York County

Virtual Tour

Floor Plans

Floor Plan 1

Frequently Asked Questions

Common questions about this property

The current listed monthly maintenance are $9,383 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 5 bedrooms and 5 full bathrooms and 2 half bathrooms.

The listed interior living area is 5,285 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1900, making it approximately 126 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 Milton Coste.

At the current list price of $9,950,000 for 5,285 sq ft, the asking price per square foot is approximately $1,883. 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 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) 416-7433
MLS® ID: RLS20113773
First Listed: 9/9/2026
On Market: 9/11/2026
Contract Date: 8/24/2026

Listing Courtesy of Compass - Bahar Tavakolian

Listing Contact: (917) 297-7067

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 9/11/2026 at 11:06 PM UTC

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Upper West Side Market Update

85 sales last 30 days · $1.40M median · 4.9 months supply

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Quick Facts

Status Active Type Co-op Neighborhood Upper West Side Borough Manhattan
County New York
Floor 1 of 6
Year Built 1900
First Listed 9/9/2026
Living Area 5,285 sqft
Maintenance $9,383/mo

Monthly Costs Estimate

Down Payment 20%

$1,990,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $9,383
Total Monthly $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 $5M to $9,999,999 at 2.25%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$223,875

Run the numbers on a different offer price

Estimate based on the asking price. Confirm your own obligation with your real estate attorney.

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