66 West 84th Street
66 West 84th Street, at Columbus Avenue · Upper West Side
Upper West Side
BBL 1011970061 · BIN 1031244
- Year built
- 1892
- Type
- Cooperative
- Landmark
- Designated
- Amenities
- Elevator, laundry and a part-time live-in superintendent
Every recorded sale at this building, 2004–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 2BR median
- $758K
- Recent range
- $295K – $765K
- Listing discount
- 3.6%
- Recorded transfers
- 31
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A Private Pricing Opinion — what your apartment at 66 West 84th Street 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.
66 West 84th Street is an 1892 corner apartment building designed by Francis A. Minuth for John Casey. Its five-story brick-and-stone form belongs to the Upper West Side's early development as a neighborhood of apartment flats. The building occupies the southeast corner of Columbus Avenue and West 84th Street, with storefronts below and cooperative homes above.
The residential inventory includes notably small apartments as well as larger one- and two-bedroom layouts. Elevator access distinguishes these homes from much of the neighborhood's low-rise nineteenth-century stock. The cooperative has 29 residences in city records, with occasional combinations and differing room arrangements visible in the resale inventory.
The West 84th Street entrance places Central Park within the same cross-street block. Columbus Avenue provides the property's second frontage and the commercial setting below the apartments. The corner location supplies several possible street exposures within a modest building height.
Architecture and unit composition
LPC identifies the building as Renaissance/Romanesque Revival flats, constructed with masonry bearing walls and brick-and-stone facades. Storefronts were included from the outset on Columbus Avenue; additional storefronts were later installed on West 84th Street. The corner has therefore had a mixed residential and commercial role throughout much of its history.
The apartment mix ranges from compact studios around 250 square feet to homes around 700 to 800 square feet. Intermediate apartments around 500 square feet recur in the transaction history. The larger homes include two-bedroom arrangements, while the smallest studios have a markedly different allocation of living, sleeping and kitchen space.
High ceilings and large windows appear in renovated apartments. Some homes have open, windowed kitchens and exposures in several directions. The street corner and the building's interior position produce different light conditions from one layout to another.
Because several size groups repeat through the floors, a top-floor apartment can be one of the smallest homes in the cooperative. Floor height alone doesn't determine where a home belongs in the building's value range. An approximately 250-square-foot studio and an approximately 800-square-foot two-bedroom occupy distinct categories even if their common building services are the same.
Building operations
The cooperative provides an elevator and common laundry, with a part-time live-in superintendent. The lobby has been renovated. These shared facilities serve a small association above the commercial frontage.
Historic-district jurisdiction applies to the exterior. LPC considered and approved a storefront, awning and lighting proposal with modifications in 2016. The retail base remains part of the same protected building fabric as the residential facade, and exterior work requires the appropriate preservation review.
Real estate taxes are assessed to the cooperative's Class 2 lot and enter the corporation's expenses. DOF identifies no building-wide abatement. The recorded built floor area is below the zoning allowance, but that comparison doesn't grant a shareholder the right to expand into roof or other common space.
Policy framework
Pets: Permitted — confirm with the managing agent.
Smoking: The cooperative's published 2018 house-rule amendment prohibits smoking in common areas and within 25 feet of entrance doors. It permits smoking inside an apartment only when it does not cause unreasonable secondhand-smoke interference with other apartments or common areas. Confirm the current rule with the managing agent.
Recent sales
Recent transfers at this building, curated by The Roebling Team research desk. 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 |
|---|---|---|---|---|---|
| Jul 10, 2026 | 2A | 2 BR · 1 BA · 800 sf | $765,000 | $956/sf | -3.2% |
| Mar 26, 2026 | 3F | 1 BR · 1 BA | $475,000 | -4.0% | |
| Feb 28, 2025 | 4A | 2 BR · 1 BA | $750,000 | -6.3% | |
| Nov 1, 2024 | 5D | 1 BA | $295,000 | -1.7% | |
| Oct 28, 2021 | 2C | 2 BR · 1 BA | $752,000 | +0.0% | |
| Apr 11, 2018 | 4F | 1 BR · 1 BA | $429,000 | -2.5% | |
| Oct 20, 2017 | 4A | 2 BR · 1 BA | $785,000 | -1.8% | |
| Sep 25, 2017 | 1A | 1 BR · 1 BA · 500 sf | $420,000 | $840/sf | +0.0% |
Market read. Most recent trades (2026) cleared a median $956/sf across 1 sale. Median listing discount 2.0% 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 1-01197-0061) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage on co-ops is not officially recorded, figures shown are approximate.
At the recent median sale of $750K (4 transfers since 2024), a buyer putting 25% down would pay about $11,363 to close, or 1.5% of the price.
- Mansion tax: $0
- No mortgage recording tax or title insurance on a co-op purchase
- Attorneys, lender, building fees and filings: $11,363
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
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Comparable buildings
- 40 West 84th Street: A similarly sized prewar cooperative on the same block in a taller building.
- 36 West 84th Street: Another same-block cooperative for comparing later prewar plans and vertical scale.
- Dundonald Flats: A smaller nineteenth-century cooperative nearby with a similarly low-rise form.
- The Lolita: A late-nineteenth-century cooperative with a park-front position and a smaller residential inventory.
- 107–111 West 82nd Street: A larger cooperative in a similar five-story, nineteenth-century building type.
More Upper West Side buildings
- 62 West 87th Street — 1891
- 63–67 West 107th Street Condominium — 1909 condominium
- 65 West 95th Street — 1928 co-op
- 71 West 83rd Street (Dundonald Flats) — 1885 co-op
- 74 West 85th Street — 1894 condominium
- 80 Central Park West — 1967 co-op
The neighborhood
For the full corridor — architecture, transit, and pricing across Upper West Side — read The Roebling Team Guide to Upper West Side.
The full playbook — what goes in the package, how boards read your financials, the interview, and the timeline — plus sample cover, reference, and personal letters you can adapt.
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.
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