Milton Coste

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(917) 416-7433

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645 W End Avenue #11D

Pending · Listing by Compass

645 W End Avenue #11D

Upper West Side, Manhattan

$2,500,000

Pending For Sale • Co-op

$2,500,000

645 W End Avenue #11D

Upper West Side, Manhattan

MLS® #RLS20097664

RLS at REBNY

Listing by Compass

3
Bedrooms
2.5
Baths
N/A
Sq. Ft.
1913
Year Built

Quick Summary

Bedrooms 3
Bathrooms 3 full, 1 half
Lot Size 13,675 sq ft
Year Built 1913
Ownership Co-op
Maintenance $3,902/mo
Neighborhood Upper West Side
Floor 11 of 12

Property Highlights

  • Exposure: East,South facing
  • Fireplace: 1 fireplace
  • Character: Pre-war building (1913)

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 6
Baths 2 Full, 1 Half
Floor 11 of 12
Exposure East,South
Pets Yes, CatsOk, DogsOk
Year Built 1913
Structure Type MultiFamily
Flooring Hardwood
Furnished Unfurnished
Lot Size 13,675 sq ft
Block/Lot 01251/0062

Listing History

Event Date Price Change
Listed Jun 15, 2026 $2,500,000 -
Currently Oct 28, 2026 $2,500,000 -

Recent Sales in This Building

What other apartments here closed for in the last three years, as reported to the REBNY Listing Service (RLS).

Closed Unit Beds Sold For Per Sq Ft
Oct 27, 2026 Unit 10C 3 BR $1,925,000 -
Jun 22, 2026 Unit 2A 3 BR $2,865,000 -
Nov 25, 2025 Unit 9C 3 BR $1,600,000 $1,067
See every sale in this building

Description

A Rare Convergence of Old World Grandeur and Modern Sophistication True luxury is often found in the seamless marriage of historical soul and modern convenience. This rarely available 3 Br residence at 645 West End Avenue is a masterclass in this balance. Designed in 1912 by the esteemed Gaetan Ajello, all of the heavy lifting has been completed in this thoughtful restoration, preserving the architectural integrity that define Upper West Side grandeur while discreetly integrating 21st-century infrastructure. Every home has a story, and so does 11D, which awaits personalization on a few decorative details. Spanning a graciously proportioned floor plan, the artisanal detail in this home is simply stunning. Original tiger oak wainscoting, beamed ceilings, crown moldings, and hardwood inlays have been revived to their former glory, complemented by fully modernized electrical and plumbing systems. The kitchen is a bespoke culinary space featuring original glass front full oak cabinetry with abundant storage and honed soapstone countertops. Original raised floral tile and subway tile backsplash along with dedicated space for your appliances, offers a seamless blend of historic soul and immense utility. The flow from the kitchen to the side-by-side living and dining rooms, divided by soaring french glass doors, create a warm, welcoming expansive space perfect for everyday living as well as high-level entertaining. The primary ensuite is a sun-drenched sanctuary with eastern exposures over WEA and anchored by a museum-quality stained glass window. Remarkable storage, featuring the original shaving closet and custom cedar-lined closets including a walk in. A secondary corner bedroom with east and south exposures and a light-filled third suite with half bath, provide flexibility for a sophisticated home office or guest room. Each bathroom features an original stained glass window, and there are a total of 6 cedar lined closets throughout the home. 645 West End Avenue remains one of the neighborhood's most coveted addresses. Residents are welcomed by a stately double-height lobby, and enjoy a spectacular landscaped roof terrace offering panoramic river sunsets, a private fitness center, bike room and private storage (waitlist). Situated on a premier residential corridor between Riverside and Central Parks, 645 WEA is the perfect home for a buyer who values pedigree, light and a lifestyle of understated elegance.

Features & Amenities

Interior Features

High Ceilings Pantry Building Washer Dryer Install Allowed Common On Floor Common Area Flooring: Hardwood Fireplace (1)

Exterior Features

Building Roof Deck

Building Amenities

Bike Storage Elevators Fitness Center

Building Information

Building Data View Compliance & Permits
Total Units 73
Stories 12
Structure MultiFamily

Financial Details

Maintenance $3,902/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

542

Median Asking Price

$1.54M

Median $/Sqft

$1,715

Avg Days on Market

N/A

New This Week

21

Price Reduced

30%

Sold (30 Days)

61

Median Sale Price

$1.46M

Live data from RLS at REBNY • Updated 10/28/26, 5:33 PM EST

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Location

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645 W End Avenue #11D, Upper West Side, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1913
Year Built
113 years old
12
Floors
73
Residential Units
R10A
Zoning District
Elevator Apartments Historic District: Riverside-West End Historic District

Tax & Assessment

Assessed Value: $10,063,800
Land Value: $1,997,100
Exemptions: $60,374

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

Lot Area: 13,410 SF
Building Area: 136,062 SF
Built FAR: 10.15
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 $3,902 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 3 bedrooms and 2 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1913, making it approximately 113 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 Milton Coste for weight limits or breed restrictions.

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: RLS20097664
First Listed: 6/14/2026
On Market: 6/15/2026
Price Changed: 6/14/2026
Pending Since: 8/18/2026
Contract Date: 6/14/2026

Listing Courtesy of Compass - Caryl A Berenato

Listing Contact: (917) 804-7367

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.

How working with a buyer's agent works: I work for you, not the seller. Before I show you anything, New York brokerage rules ask us to put that in writing: an agreement and a disclosure that say I work for you and negotiate on your behalf. The agreement is non-exclusive: you can work with other agents, it runs for a short fixed term we agree on, and you can end it with a note. You may attend open houses independently without an agreement. Read how it works

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 10/28/2026 at 9:33 PM UTC

See it in person

Upper West Side Market Update

61 sales last 30 days · $1.54M median · 8.9 months supply

Read Full Report

New listings in this neighborhood

Quick Facts

Status Pending
Type Co-op Neighborhood Upper West Side Borough Manhattan
County New York
Floor 11 of 12
Year Built 1913
First Listed 6/14/2026
Maintenance $3,902/mo

Monthly Costs Estimate

Down Payment 20%

$500,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $3,902
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 $2M to $2,999,999 at 1.25%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$31,250

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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