640 West End Avenue
640 West End Avenue, at West 91st Street · Upper West Side
BBL 1012397501 · BIN 1033580
- Year built
- 1912
- Type
- Condominium
- Amenities
- Part-time doorman, resident superintendent, elevator, central laundry and bicycle storage
- Landmark status
- Not an individual landmark; in the Riverside-West End Historic District
- NYC Landmarks Preservation Commission records, updated February 2026
- Pets
- Pets permitted; species and limits not stated
- Doorman
- Part-time doorman
Every recorded sale at this building, 2003–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf, 2026 to date
- $1,178
- floor-adjusted, 1 sale
- Listing discount
- 3.6%
- Recorded sales
- 36
- On record
- 2003–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 640 West End Avenue would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
640 West End Avenue is a prewar condominium designed by Townsend, Steinle & Haskell, with formal dining rooms, extensive original woodwork and large corner apartments among its principal layouts. The twelve-story building stands at West 91st Street inside the Riverside-West End Historic District. Its limestone base and copper cornice frame a buff-brick façade.
The original developer was Odell & Townsend Holding Company, formed by Adelaide Townsend and George W. Odell. The design belongs to the period when large apartment houses were replacing lower-scale development along West End Avenue.
Today the condominium includes both expansive prewar homes and much smaller apartments. Some large layouts preserve side-by-side living and dining rooms; the smaller inventory includes homes of roughly 550–900 square feet. The full building cannot be represented by a single classic-room configuration.
Architecture and unit composition
A rusticated limestone base rises through the lower stories, with balconies and decorative stonework marking transitions in the façade. Above it, buff-colored brick is relieved by limestone details, upper balconies and garlands. A copper cornice finishes the roofline. At the entrance, polished granite columns and a broken pediment give the doorway a formal composition.
The corner position provides West End Avenue and West 91st Street frontages. A separate side-street entry forms part of the building's circulation. The entrance has steps, an access detail relevant to the route from sidewalk to lobby.
Larger apartments retain ceilings around ten feet, parquet floors with decorative borders, paneled woodwork and long internal halls. Surviving details include carved wood, plaster ceiling ornament, leaded-glass cabinetry and pocket or French doors between public rooms. Several larger plans place the living room and formal dining room alongside one another, with bedrooms beyond.
Three-bedroom configurations may include a separate staff room or office and more than two bathrooms. Later renovations have introduced central air and in-unit laundry in some homes. Other apartments have been sold in estate condition, preserving more of the original arrangement and finishes.
The smaller homes occupy a different size category from the approximately 1,700–2,050-square-foot apartments. Combined apartments add further variation. A large prewar floor plan, a smaller subdivided home and a combination have distinct room proportions even when their bedroom counts overlap.
Building operations
The building has a part-time doorman and resident superintendent, along with central laundry and bicycle storage. Its condominium form accompanies a prewar physical plant and historic-district exterior. Alterations to designated exterior features, including windows and façade details, fall within LPC oversight.
Residential unit lots are Class 2, with no cap on assessment growth, and no tax abatement is listed. The tax-lot structure also contains Class 4 interests. These are separate from the 36 residences counted by the city.
In-unit laundry and central air are present in renovated apartments, but they are not uniform original building systems. For a buyer choosing between a renovated home and an estate-condition apartment, the presence of those installations is a concrete difference in the scope of work already completed.
Policy framework
Pets are permitted — confirm with the managing agent.
Application and transaction fees
Fees below are from building management's published schedule, as of July 2026. They are shown as published, item by item; no total is added because the total depends on the transaction. Deposits are listed apart from nonrefundable charges.
Purchase
4 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Fee | Paid by Buyer | When With the application | Amount $750 | Refundable Non-refundable |
| Closing Fee | Paid by Buyer | When At closing | Amount $350 | Refundable Not stated |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move In Deposit | Paid by Buyer | When At closing | Amount $500 | Refundable Refundable |
| Move-Out Deposit | Paid by Seller | When At closing | Amount $500 | Refundable Refundable |
Rental or lease
3 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Fee | Paid by Tenant | When With the application | Amount $250 | Refundable Non-refundable |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move in Deposit | Paid by Tenant | When Upon approval | Amount $500 | Refundable Refundable |
Lease renewal
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Fee | Paid by Tenant | When With the application | Amount $75 | Refundable Non-refundable |
Management updates its schedule without a public filing. The date is when management last updated the page, not when a rule changed. Confirm the current schedule with management before you apply.
Considering an apartment here? Send Corey the listing to discuss the building's costs and purchase requirements.
Own an apartment here? Request an apartment-specific pricing review.
Pets and in-unit washer/dryer
- Pets
- Pets permitted; species and limits not statedSource: The Roebling Team's building profile
- In-unit washer/dryer
- Not verified
Considering an apartment here? Send Corey the listing to confirm the pet and washer/dryer rules for that apartment.
Building staffing and amenities
- Doorman
- Part-time doormanSource: The Roebling Team's building profile
- Live-in superintendent
- YesSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of Buildings elevator records
- Amenities noted
- Bike storage, laundry roomSource: The Roebling Team's building profile
Staffing and amenities as our building profile and recent listing records describe them. A feature not listed is not confirmed absent. Outdoor space, parking and some facilities can belong to particular apartments or to a separate owner; confirm access for the specific apartment.
Local Law 97
- 2024–2029 annual penalty
- $48,241/yr
- 2030–2034 annual penalty
- $103,700/yr
- Per unit / month range
- $112 – $240
- Modeled exposure split equally across 36 units (the residential count on the city's lot record). Not an assessed amount; condominium owners are typically charged by each unit's common-interest percentage.
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City data last refreshed October 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →Facade safety — Local Law 11
The latest available filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the inspector (QEWI) identified conditions requiring monitoring or repair, with repairs due by the deadline stated in the filing. The scope, timeline, and how the building funds the work are building-specific — we review the filings and board materials for you.
How to read this, and where it comes from
QEWI = Qualified Exterior Wall Inspector — a licensed professional engineer or registered architect who meets DOB’s FISP qualifications and signs the report (the independent expert, not the managing agent).
Penalties shown are amounts DOB assessed against filings on record across 2005–10 to 2020–25. The FISP dataset does not record whether they were paid, contested or remain open, so treat the figure as history rather than a current balance and confirm the building’s standing with the managing agent.
Source: NYC DOB facade filings (FISP) · The Roebling Research Library. City data last refreshed October 2026.
Recent sales
Recent closings at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| May 19, 2026 | 12C | 2 BR · 1 BA · 900 sf | $950,000 | $1,056/sf | -3.6% |
| Jul 20, 2022 | 1B | 4 BR · 3 BA · 1,945 sf | $1,800,000 | $925/sf | +0.0% |
| Feb 4, 2022 | 1C | 1 BR · 1 BA · 549 sf | $650,000 | $1,184/sf | -10.3% |
| Apr 2, 2021 | 2B | 3 BR · 2.5 BA · 2,049 sf | $2,400,000 | $1,171/sf | -17.2% |
| Dec 29, 2020 | 12B | 1 BR · 1 BA · 800 sf | $885,000 | $1,106/sf | +7.3% |
| Aug 9, 2019 | 5D | 2 BR · 1.5 BA · 1,098 sf | $1,575,000 | $1,434/sf | -7.1% |
| Feb 20, 2019 | 11A | 3 BR · 2 BA · 1,712 sf | $3,000,000 | $1,752/sf | -17.7% |
| Mar 1, 2018 | 8A | 3 BR · 2 BA · 1,729 sf | $2,400,000 | $1,388/sf | -19.9% |
Market read. Most recent trades (2026 to date) cleared a median $1,178/sf (floor-adjusted) across 1 sale. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 3.6% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01239-7501; each condominium apartment is its own tax lot). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage from recorded condo declarations and offering plans.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 640 West End Avenue and nearby.
Buying here? Condo closing costs with a mortgage typically run 3 to 6% of the price. See NYC co-op and condo closing costs, line by line.
Keep up with 640 West End Avenue and its market
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Comparable buildings
- 650 West End Avenue: A same-block prewar condominium of comparable apartment-house scale.
- 190 Riverside Drive: A similarly scaled prewar condominium with a Riverside Drive frontage.
- The Vancouver: A smaller, lower-rise condominium conversion for comparing prewar layouts with fewer residences.
- 595 West End Avenue: Another West End Avenue prewar condominium in a taller building.
- 317 West 89th Street: A smaller prewar condominium close to the same portion of West End Avenue.
More Upper West Side buildings
- 610 West 110th Street — 1921 condominium by Schwartz & Gross
- 611 West 111th Street — 1905
- 611 West 56th Street — 2018 condominium
- 661 Amsterdam Avenue (The Clayton) — 1940 co-op
- 952 Columbus Avenue (Ivy Park) — 2015 condominium
- 1965 Broadway (The Grand Millennium) — 1996 condominium by SLCE Architects
The neighborhood
For the full corridor — architecture, transit, and pricing across Upper West Side — read The Roebling Team Guide to Upper West Side.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
Considering a move at 640 West End Avenue?
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646.939.7375 · c.cohen@compass.com