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Pending · Listing by Compass
645 W End Avenue #11D
Upper West Side, Manhattan
$2,500,000
645 W End Avenue #11D
MLS® #RLS20097664
Listing by Compass
- 3
- Bedrooms
- 2.5
- Baths
- N/A
- Sq. Ft.
- 1913
- Year Built
Quick Summary
Property Highlights
- Exposure: East,South facing
- Fireplace: 1 fireplace
- Character: Pre-war building (1913)
Property Details
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 |
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
Exterior Features
Building Amenities
Building Information
Financial Details
About Upper West Side
View All Upper West Side ListingsThe 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 NeighborhoodActive 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
645 W End Avenue #11D, Upper West Side, New York County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
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
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
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) 416-7433Listing 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 Data display by Keller Williams NYC. Data last updated on 10/28/2026 at 9:33 PM UTC
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- 1Milton emails you today.
- 2A short call about what you want and when.
- 3The agreement arrives electronically after the call. Then showings.
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You're contacting Milton Coste, a buyer's agent. Before any private showing, New York brokerage rules require a short non-exclusive agreement. Milton walks you through it before you sign anything. Broker commissions are not set by law and are fully negotiable. How working together works.
Upper West Side Market Update
61 sales last 30 days · $1.54M median · 8.9 months supply
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Quick Facts
Monthly Costs Estimate
$500,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$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
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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