139 East 66th Street
139 East 66th Street, New York, NY 10065
BBL 1014010032 · BIN 1042463
- Year built
- 1918
- Type
- Cooperative
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
- Doorman
- Part-time doorman
Every recorded sale at this building, 2003–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- Listing discount
- 6.5%
- Recorded transfers
- 25
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 139 East 66th 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.
139 East 66th Street is a 1918 Lenox Hill cooperative between Lexington and Third Avenues, converted to cooperative ownership in 1929.
Architecture and unit composition
The building is a refined nine-story pre-war: a masonry façade composed in the restrained classical manner of the late 1910s, anchored by a canopied entrance that gives the address its quiet sense of arrival. The scale is mid-block and residential — a building that contributes to the street rather than dominating it.
Inside, the approximately two-per-floor plan delivers the building's signature. The 20 residences include the pre-war details described in the building records: wood-burning fireplaces, herringbone floors, high ceilings, gracious entry foyers, and the proper separation of entertaining and sleeping wings. Check the specific apartment's window orientations, obstructions and floor level to assess light and views; two homes per floor does not establish exposure quality. Condition ranges from preserved-original to renovated, a spread that creates opportunity for buyers willing to update and a premium for turnkey homes.
Building operations
For a 20-unit cooperative, 139 East 66th Street is well attended: a part-time doorman covers the lobby during key hours and superintendent service maintains the building, with basement storage and an elevator handling the practical needs. Confirm the door-attendance hours and duties, and compare actual maintenance, debt and reserves with specific alternatives; part-time staffing alone does not establish a lower total carrying cost.
Purchases are subject to cooperative board review, with subletting governed by board policy; confirm the building's current financing, liquidity, occupancy and subletting requirements from its governing documents and application instructions.
Building staffing and amenities
- Doorman
- Part-time doormanSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of City Planning records (PLUTO)
- Amenities noted
- StorageSource: 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
- $0 (under cap)
- 2030–2034 annual penalty
- $16,206/yr
- Per unit / month range
- $0 – $68
- Modeled exposure split equally across 20 units (the residential count on the city's lot record). Not an assessed amount; co-op shareholders are typically charged by share allocation.
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 FISP filing classified the facade as Safe — no repairs were required at that inspection. A filed Safe grade is not a guarantee of current condition: owners still maintain the facade and, where required, observe parapets each year. Future inspection timing (Local Law 49 of 2025 changed the cycle framework from October 1, 2026), repair and any assessment decisions remain building-specific.
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 transfers 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 |
|---|---|---|---|---|---|
| Oct 14, 2022 | 4 | 3 BR · 2 BA · 2,025 sf | $3,500,000 | $1,728/sf | -9.1% |
| Jul 16, 2021 | 7S | 3 BR · 3 BA | $2,600,000 | -8.8% | |
| May 8, 2020 | 1W | 1 BR · 1 BA | $435,000 | -17.1% | |
| Jan 21, 2020 | 9N | 3 BR · 3 BA · 1,700 sf | $1,450,000 | $853/sf | -6.5% |
| Sep 7, 2018 | 9S | 3 BR | $3,250,000 | — | |
| Sep 21, 2017 | 3S | 3 BR · 2.5 BA | $3,200,000 | -2.9% | |
| Jul 13, 2017 | 2N | 2 BR · 2 BA | $1,850,000 | -1.3% | |
| May 18, 2016 | 4 | 3 BR | $2,800,000 | -15.2% |
Market read. $/sf is measured on the latest sales with reliable square footage (2022): a median $1,728/sf (recorded) across 1 sale. The building has traded as recently as 2026. Median listing discount 6.5% 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 1-01401-0032). 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 on co-ops is not officially recorded, figures shown are approximate.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 139 East 66th Street and nearby.
Buying here? Co-op closing costs typically run 2 to 3% of the price. See NYC co-op and condo closing costs, line by line.
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What to know if you’re buying
Prepare a complete board application and interview, and evaluate the apartment’s actual exposure, floor level and renovation condition. Do not infer multiple exposures from the two-per-floor layout. The location is a short walk from Central Park, Madison Avenue shopping and the 6 train at 68th Street. Review the financials and dated comparable sales before offering.
What to know if you’re selling
Show renovated finishes clearly, and identify the work needed in an estate-condition apartment. Price against comparable Lenox Hill pre-war cooperative sales, adjusting for the particular layout, light and condition. Substantiate any claim of scarce competing inventory with current listings and recent sales, and allow for the board’s application process.
Comparable buildings
If you're considering 139 East 66th Street, also evaluate these nearby buildings, checking construction era and ownership terms individually:
- 137 East 66th Street — pre-war cooperative on the same block
- 114 East 66th Street — neighboring East 66th Street building; verify its era and ownership terms
- 1 East 66th Street — cooperative near Fifth Avenue; verify its construction history
- 845 Fifth Avenue (4 East 66th Street) — pre-war cooperative off Fifth Avenue
- 45 East 66th Street — landmark pre-war cooperative nearby
- 53 East 66th Street — Lenox Hill pre-war cooperative
More Upper East Side buildings
- 136 East 79th Street — 1929 co-op
- 137 East 66th Street — 1918 co-op
- 139 East 63rd Street (Beekman Estate) — 1962 co-op
- 139 East 79th Street — 1928 co-op
- 139 East 94th Street — 1927 co-op by Boak & Paris
- 140 East 81st Street — 1928 co-op
The neighborhood
For the full corridor — architecture, transit, and pricing across Upper East Side — read The Roebling Team Guide to Upper East 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.
Considering a move at 139 East 66th Street?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
646.939.7375 · c.cohen@compass.com