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Pending · Listing by Brown Harris Stevens Residential Sales LLC
505 W END Avenue #4D
Upper West Side, Manhattan
$1,400,000
505 W END Avenue #4D
MLS® #RLS20049950
Listing by Brown Harris Stevens Residential Sales LLC
- 2
- Bedrooms
- 2
- Baths
- N/A
- Sq. Ft.
- 1922
- Year Built
Quick Summary
Property Highlights
- Climate Control: Other
- Character: Pre-war building (1922)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 19, 2025 | $1,550,000 | - |
| Price Reduced | Jun 10, 2026 | $1,450,000 | -6.5% |
| Currently | Nov 6, 2026 | $1,400,000 | -3.4% |
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 |
|---|---|---|---|---|
| Aug 17, 2026 | Unit MAIS | 3 BR | $2,150,000 | - |
| Jul 10, 2024 | Unit 6C | 3 BR | $2,300,000 | - |
Description
PRICE IMPROVEMENT!!! View this charming Classic 6 home located in 505 West End Avenue, a well-run boutique cooperative on the corner of 84th Street in the sweet spot of the Upper West Side. This is the first resale of Apartment 4D which has been lived in and enjoyed by the same family for many years. Rarely available, the D line has great entertaining space. The entry foyer can double as an office and leads to the formal dining room and living room which are separated by glass french doors. The apartment is at the back of the building and therefore it is peaceful with no street noise. The two corner bedrooms are both bathed in western light in the late afternoon. The layout of this Classic 6 lends itself to various uses for the main rooms. If you want a 3rd bedroom there are a number of ways to accomplish this: flip the kitchen and the staff room to make a 3rd bedroom from the current kitchen area or enlarge the staff room by adding the pantry hallway and a foot from the formal dining room, or create a bedroom from the current living room. Please look at the added architectural plans to see various possibilities of changing the layout to suit your needs. (These plans were created and drawn by an architect but have not been presented to the building for approval). You will note that one of the plans has added an additional bathroom. Built circa 1922, this apartment has high ceilings, classic moldings, and original oak hardwood floors throughout. There are two full windowed baths; one with a tub in the hallway bath easily accessed by either bedroom and one with a stall shower in the staff/office room. The kitchen is also windowed and has an original hutch which is charming but in need of removal of years of paint. The kitchen has many possibilities for upgrading and changing the configuration. Other units in the D line have been inventive and designed beautiful unique kitchens in the space. The cooperative has a full-time doorman and a live in super. Amenities include a gym, media room, laundry room and a very special landscaped roof deck with spectacular sky, water and city views. The building is pet friendly, allows washer/dryers and CAC with board approval. Location is ideal with close proximity to both Central and Riverside Parks, local transportation and a wide choice of eating and shopping venues. There is an assessment of $270.23 per month through 10/27.
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
529
Median Asking Price
$1.31M
Median $/Sqft
$1,541
Avg Days on Market
N/A
New This Week
16
Price Reduced
30%
Sold (30 Days)
57
Median Sale Price
$1.46M
Live data from RLS at REBNY • Updated 11/6/26, 12:28 PM EST
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Location
505 W END Avenue #4D, 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 $3,693 per month. Confirm the exact amount with Milton Coste before making an offer.
This property has 2 bedrooms and 2 full bathrooms.
According to MLS records, the building was constructed in 1922, making it approximately 104 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: Pets Allowed With Board Approval.,Building Pets Allowed Comments:Pets Allowed With Board Approval.. Contact Milton Coste 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) 416-7433Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Naomi J Davis
Listing Contact: (212) 588-5634
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 11/6/2026 at 5:28 PM UTC
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Upper West Side Market Update
57 sales last 30 days · $1.31M median · 9.3 months supply
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Quick Facts
Monthly Costs Estimate
$280,000
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 $1M to $1,999,999 at 1.00%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$14,000
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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