Cooperative · 1969
Park Ten
10 West 66th Street, New York, NY 10023

10 West 66th Street (Park Ten)

10 West 66th Street, New York, NY 10023

At a glance
Year built
1969
Type
Cooperative
Units
274
Floors
32
Landmark
No
Pets
Permitted — cats and dogs per brokerage records
Financing
75 percent maximum (25 percent minimum down) per brokerage records

Park Ten is the kind of building current zoning no longer permits: a 32-story tower rising mid-block on West 66th Street, one building in from Central Park West. The 1969 construction date is the whole story — the tower went up inside the window between Lincoln Center's completion and the contextual zoning that later capped the side streets, and architectural records have noted that a tall, non-contextual mid-block tower like this one could not be built in the neighborhood today. What was an urbanistic controversy in 1969 is a structural asset in 2026: upper-floor east-facing apartments and the building's dense stacks of balconies carry Central Park views from a side-street address, and nothing on the block can replicate the height.

The building's design gestures are of their moment. Ralph E. Leff set the tower back from the street behind a landscaped circular driveway — a genuine porte-cochère arrival sequence, rare off Central Park West — and faced the entrance in a travertine surround of four arches that architectural records have read as an homage to the Metropolitan Opera House, which had opened at Lincoln Center only a few years before. The rest is honest post-war luxury-tower fabric: beige brick, balconies in quantity, windowed kitchens, and a garage in the base.

Operationally, the building converted to cooperative ownership in 1981 and runs as a full-service house with an unusually permissive policy posture for a co-op: pieds-à-terre are permitted and financing runs to 75 percent per brokerage records — a framework closer to condo flexibility than to the pre-war boards a few blocks north. The trade-off is the sublet prohibition, which keeps the shareholder base owner-occupied. And the building's cultural footnote is a good one: Isaac Asimov lived and wrote here from 1975 until his death in 1992, in a top-floor apartment overlooking Central Park that he described in his memoirs.

Architecture and unit composition

The tower's through-block lot (West 66th to West 65th Street) and deep setback give it light on all four sides — a mid-block building that lives like a freestanding one. The roughly 274 apartments run from studios and one-bedrooms through combined units, with two-bedroom lines the core inventory; ceilings are post-war standard, kitchens are windowed, and a high proportion of lines carry private balconies. The view stack is the pricing engine: east exposures above the neighboring rooflines take in Central Park, south and west exposures take the Lincoln Center and Hudson skyline, and the building's own roof deck delivers the panorama to every shareholder. Renovation quality varies widely across 274 units, which keeps a steady spread between dated and turnkey pricing.

Building operations

Full-service at scale: 24-hour doorman and concierge, fitness center, landscaped roof deck, children's playroom, central laundry, bike room, storage, and the 24-hour attended garage with lobby access — a meaningful daily-life amenity at this address. Ground-floor professional and medical suites occupy part of the base. The 66th Street location puts the 1 train at Lincoln Center three minutes away, with the A/B/C/D at Columbus Circle and the park's Tavern on the Green entrance both within a few blocks. Policy specifics — the sublet prohibition, transfer-fee structure, and any current assessments — should be verified against management documents during diligence.

Local Law 97

Carbon-penalty exposure
🟡
Moderate — manageable today, 2030 cliff likely
2024–2029 annual penalty
$0 (under cap)
2030–2034 annual penalty
$1,677/yr
Per unit / month range
$0 – $1
See full Local Law 97 analysis — emissions history, scenarios, methodology →

Recent sales

The retrade record

Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.

4B+70%
$935,000 2009$1,361,500 2017$1,590,000 2021
3K+68%
$999,000 2009$1,667,500 2018$1,675,000 2024
33G+64%
$975,000 2006$1,600,000 2022
31H+61%
$2,330,000 2010$3,750,000 2022
22K+33%
$1,685,000 2006$2,248,000 2025

Recent transfers at this building, sourced from NYC Department of Finance records. Apartment-level detail (line, condition, asking-price context) verified upon consultation request.

DateUnitPrice
Dec 26, 202522ABC$4,850,000
Dec 23, 202519A$950,000
Oct 28, 202517BC$2,000,000
Sep 18, 20256AK$2,550,000
Nov 10, 202515B$1,430,000
Sep 2, 20253G$1,325,000
View all 114 recorded transfers, sortable

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 1-01118-0022) 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.

What to know if you’re buying

The policy mix is the headline. Pied-à-terre permitted, 75 percent financing, pets welcome — per brokerage records, this is one of the more flexible co-op frameworks near the park, and it widens the buyer pool accordingly. The sublet prohibition is the counterweight: buy for occupancy, not optionality. Verify all terms with the managing agent before offering.

Price the view stack line by line. A high-floor east balcony line and a low-floor mid-block line are different products at different prices. Ask for the specific line's sales history — with 274 units, same-line comps exist for nearly every apartment.

The garage and driveway are underpriced conveniences. A 24-hour attended garage with lobby access and a true off-street arrival are rare in this corridor at any price; drivers and families should weight them explicitly in the carry comparison. Run the True Monthly Carrying Cost Calculator on the specific unit.

Calibrate against the pre-war alternative. The same budget buys fewer rooms with more ceiling a block east on Central Park West. Park Ten's case is light, balconies, garage, and policy flexibility; the pre-wars' case is fabric and prestige. Decide which argument is yours before bidding.

Standard co-op underwriting applies. Review the financials, assessment history, and the capital plan for a 1969 building's systems — facade, elevators, risers — with your attorney. Run the Co-op Board Qualification Calculator before offering.

What to know if you’re selling

Lead with the balcony and the view. Private outdoor space with a park or skyline outlook is the building's differentiator against both the pre-war co-ops (which rarely have it) and much of the newer condo stock (which prices it heavily). Photograph from the balcony, not just of it.

Market the policy framework to the right pool. Pied-à-terre permission per brokerage records opens this building to out-of-town and second-home buyers most co-ops turn away — a structurally larger demand pool that the marketing should address directly.

Position on value against the block's new tower. Buyers touring 50 West 66th Street's new construction will see this block anyway; the honest pitch is the same street and the same park at a fraction of the per-foot price, with a doorman, garage, and roof deck already in the maintenance.

Comparable buildings

If you're considering 10 West 66th Street, also evaluate:

The Roebling Team at Park Ten

The Roebling Team at Compass works Lincoln Square, Central Park West, and the broader Upper West Side as a core practice area. We publish this building profile because Park Ten buyers and sellers deserve building-specific intelligence — policy framework, line-level view analysis, and corridor comparables — not generic neighborhood commentary.

If you're considering a transaction at 10 West 66th Street, a 30-minute consultation is the right starting point.

Considering a transaction at Park Ten?

A 30-minute consultation is the right starting point.

Schedule a consultation →
Corey Cohen · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com