710 Park Avenue
710 Park Avenue, New York, NY 10021
Lenox Hill, Upper East Side
BBL 1013840037 · BIN 1041310
- Year built
- 1948
- Type
- Cooperative
- Units
- 87
- Floors
- 20
- Landmark
- No
- Financing
- Up to 60% financeable (40% minimum down).
Compiled by The Roebling Research Desk from the building’s offering plan, amendments, and related building documents (primary source dated 2026). Board policies can change by amendment — confirm at the offer stage.
Every recorded sale at this building, 2003–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 2BR median
- $2.6M
- Recent range
- $945K – $3.3M
- Listing discount
- 2.7%
- Recorded transfers
- 87
710 Park Avenue is among the architecturally consequential immediate-post-war cooperatives on Lenox Hill Park Avenue — one of the first apartment buildings constructed on the corridor after WWII. Completed in 1948 by Sam Minskoff & Sons under the architectural direction of Sylvan Bien (1893–1959), the 20-story building represents the transition from the pre-war Park Avenue masonry tradition to the streamlined modernist white-glove vocabulary that would define Park Avenue's mid-century construction cycle.
Sylvan Bien's broader Manhattan body of work places 710 Park in substantial architectural-pedigree company. Bien designed The Carlyle Hotel (1930), Manhattan House at 200 East 66th Street (1950 — among the most architecturally consequential post-war Manhattan residential commissions), 875 Park Avenue, and 35 East 75th Street. His firm's career spanned the late art-deco and the post-war modernist registers; 710 Park is among his immediately-post-war Park Avenue commissions and represents a specific moment in Park Avenue architectural history.
The architectural composition at 710 Park is structurally distinctive within the broader post-war Park Avenue cooperative tradition. The asymmetric red-brick façade carries a prominent wrap-around 15th-floor balcony — a real apartment-level outdoor amenity at one of the building's defining setback configurations. The 87-apartment scale and the 1979 cooperative conversion produce a structural cooperative identity calibrated to the post-war Park Avenue building cycle.
Architecture and unit composition
The approximately 87 cooperative apartments distribute across the building's 20 stories in configurations ranging from one-bedroom apartments through penthouse-tier configurations. Apartment-level features include the post-war architectural fabric characteristic of Bien's 1948 work, balcony exposures on select units, and the layout discipline of the late-1940s Park Avenue building cycle.
Recent active inventory has run from approximately $999,000 on the smaller-unit configurations through approximately $4,395,000 on the larger configurations. Unit 10E closed in March 2024 at $2,400,000.
Building operations
710 Park operates as a full-service cooperative with 24-hour doorman, concierge, and live-in resident manager. The amenity infrastructure includes a fitness center, a landscaped courtyard, a wine cellar, and private storage. The building does not carry an on-site garage.
The cooperative policy framework supports pet ownership and pied-à-terre use — both relatively flexible by Park Avenue cooperative standards. Specific financing maximum, flip tax structure, and sublet duration limits should be verified directly during due diligence.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $0 (under cap)
- Per unit / month range
- —
Facade safety — Local Law 11
The latest available filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the engineer identified conditions requiring monitoring or repair before the next inspection cycle. The scope, timeline, and how the building funds the work are building-specific — we review the filings and board materials for you.
QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign the report (the independent expert, not the managing agent). Source: NYC DOB facade filings (FISP) · The Roebling Research Library.
See the full facade history →Management & transfer contacts
Recent sales
Recent transfers at this building, curated by The Roebling Team research desk. Apartment-level facts are independently verified before publishing; sale prices reflect the recorded transfer amount at the NYC Department of Finance.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Mar 25, 2026 | 19C | 3 BR · 3.5 BA · 2,050 sf | $2,950,000 | $1,439/sf | -13.2% |
| Mar 3, 2026 | 20B | 2 BR · 2 BA | $2,600,000 | +0.0% | |
| Mar 3, 2026 | PH20B | 2 BR · 2 BA | $2,600,000 | +0.0% | |
| Oct 22, 2025 | PH20B | 2 BR · 2 BA | $2,600,000 | +10.6% | |
| Aug 13, 2025 | 10C | 2 BR · 2 BA | $2,500,000 | +0.0% | |
| Jun 25, 2025 | 4D | 1 BR · 1.5 BA · 1,060 sf | $1,150,000 | $1,085/sf | +0.0% |
| Jun 10, 2025 | 5F | 1 BR · 1.5 BA · 1,100 sf | $945,000 | $859/sf | -5.4% |
| Mar 27, 2025 | 15B | 1 BR · 1 BA | $1,035,500 | -5.4% |
Market read. Most recent trades (2026) cleared a median $1,232/sf across 1 sale. Median listing discount 4.4% 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.
Other recent transfers
| Date | Unit | Price |
|---|---|---|
| Apr 22, 2004 | 15A | $1,395,000 |
| Oct 15, 2003 | 17C | $2,750,000 |
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 1-01384-0037) 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.
What to know if you’re buying
The Sylvan Bien architectural pedigree is structurally meaningful. Bien's broader body of work — The Carlyle Hotel, Manhattan House — places 710 Park in substantial architectural-pedigree company.
The 1948 vintage represents the immediate post-war Park Avenue building cycle. Among the first new Park Avenue commissions after the wartime construction freeze; the building represents a specific moment in the corridor's architectural history.
Pet and pied-à-terre policies are relatively flexible. Materially more accommodating than typical pre-war Park Avenue cooperative norms.
The wrap-around 15th-floor balcony is a structural architectural feature. Apartment configurations at the setback levels carry distinctive outdoor space.
Verify operational specifics during due diligence. Specific financing maximum, flip tax, sublet duration limits, current capital project pipeline, and the LL11 façade cycle on the 1948 vintage should be reviewed.
Closing timelines are cooperative-standard. Plan for 6–10 weeks from contract through board approval to closing.
What to know if you’re selling
Marketing should emphasize the Sylvan Bien architectural credential. A real architectural-pedigree marketing argument that distinguishes the building from peer post-war Park Avenue cooperative inventory.
Pricing should reference recent comparable closings. The $999,000–$4,395,000 active inventory range provides current market context.
Closing timelines are cooperative-standard.
Comparable buildings
If you're considering 710 Park Avenue, also evaluate:
- 700 Park Avenue — Kahn & Jacobs 1959; immediate post-war Park Avenue cooperative peer
- 650 Park Avenue — Kokkins & Lyras 1963; post-war Park Avenue peer
- 875 Park Avenue — Sylvan Bien; same-architect Park Avenue peer
- 730 Park Avenue — pre-war Park Avenue peer
- 778 Park Avenue — Candela 1931; pre-war Park Avenue trophy peer
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across Park Avenue — read The Roebling Team Guide to Park Avenue.
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.
Considering a move at 710 Park Avenue?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 710 Park 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.