- Year built
- 1927
- Type
- Cooperative
- Units
- 26
- Floors
- 14
- Landmark
- Designated
- Flip tax
- 2% of the sale price.
- Subletting
- Not permitted — an owner-occupancy building.
Compiled by The Roebling Research Desk from building documents and current market data. Board policies can change by amendment — confirm at the offer stage. As of 2026.
660 Park Avenue is among the few Manhattan luxury apartment commissions by York & Sawyer — a firm whose broader portfolio across the early 20th century established them as among America's most accomplished institutional and bank architects. Edward Palmer York and Philip Sawyer's commissions across their decades of practice included the Federal Reserve Bank of New York (1924, a Florentine Renaissance bank palace executed at unusual material quality and architectural ambition), the New York Athletic Club (1929), the Brooklyn Trust Company building (1916), the Bowery Savings Bank, and numerous additional bank, club, and institutional commissions across New York and beyond. The firm's apartment-building portfolio was narrower than their institutional work, and 660 Park represents one of their most architecturally accomplished residential commissions.
The 1927 vintage at 660 Park places the building in the pre-Depression Park Avenue luxury apartment-building peak — the same approximate vintage as 720 Park (Candela / Cross & Cross 1929) three blocks north and immediately before the Candela apex at 740 Park (1930) and 778 Park (1931). The York & Sawyer architectural credential differs from the Candela / Cross & Cross / Carpenter Park Avenue tradition in a particular way: where the dominant pre-war Park Avenue firms specialized in apartment-building design and developed their portfolios primarily through residential commissions, York & Sawyer's apartment work reflected a firm whose primary expertise was in institutional and bank architecture, with the apartment commissions executed at the same material-quality standard.
The 26-apartment scale places 660 Park among the tighter pre-war Park Avenue cooperatives — moderate institutional density and limited annual turnover. The building's residential roster across the decades has tracked the broader Park Avenue tier-one pattern: financial-services principals, professionals with multi-generational New York ties, and the corridor-defined Lenox Hill residential character.
The southern Park Avenue / 67th Street positioning is structurally distinct from the corridor's center of gravity at the 740 Park / 778 Park cluster three blocks north. 660 Park sits at the lower Lenox Hill anchor, immediately adjacent to Hunter College (East 68th Street), the Park Avenue Armory (Park Avenue between 66th and 67th — the Gilded Age military landmark now an arts venue), and the broader cultural / institutional concentration of the Lenox Hill / lower Carnegie Hill transition.
For buyers, 660 Park represents a particular tier of Lenox Hill Park Avenue inventory: York & Sawyer architectural pedigree (an unusual firm credential within the corridor), 26-apartment scale producing limited annual turnover, corner Park / 67th Street positioning at the lower-Lenox Hill anchor, and pricing materially below the Candela apex.
Architecture and unit composition
The 26 apartments span configurations from approximately 2,000 sf 2BRs to substantially larger 4–5 BR configurations across the 14 stories. The building's most architecturally distinctive apartments are the upper-floor full-floor configurations and the corner residences.
York & Sawyer's 1927 signatures throughout: 10–11 foot ceilings in primary rooms, formal entry galleries, library-living room combinations, primary suites with substantial closet infrastructure, service wings characteristic of 1927-era luxury apartment design. The firm's institutional-architecture material-quality discipline carries through to the residential commission.
Park Avenue-facing apartments on the western flank look across to the Park Avenue median plantings and the buildings on the avenue's west side. 67th Street-facing apartments have cross-street exposures with stable residential side-street views.
Building operations
660 Park Avenue operates as a full-service pre-war cooperative with full-time doorman, attended elevator, on-site superintendent, and private storage. The 26-apartment scale produces a low operational density characteristic of tighter pre-war Park Avenue inventory.
Specific policy details (financing posture, flip tax structure, sublet policy specifics, pied-à-terre allowance) should be confirmed directly with property management during due diligence. The board posture follows tier-one Lenox Hill pre-war norms.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $21,861/yr
- Per unit / month range
- $0 – $152
Facade safety — Local Law 11
The facade passed its last inspection with no required repairs — nothing to budget for here, and no facade assessment on the horizon for roughly five years.
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 →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 |
|---|---|---|---|---|---|
| Jan 2, 2018 | 8FL | 3 BR | $12,000,000 | -4.0% | |
| May 31, 2006 | 5 FL | 3 BR · 4,600 sf | $10,500,000 | $2,283/sf | -16.0% |
Market read. Most recent trades (2006) cleared a median $2,283/sf across 1 sale. Median listing discount 4.0% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
Other recent transfers
| Date | Unit | Price |
|---|---|---|
| Aug 30, 2022 | 11FL | $19,500,000 |
| Dec 20, 2017 | 8 | $12,500,000 |
| Feb 11, 2008 | 1SE | $3,650,000 |
| Feb 3, 2005 | PH15 | $9,690,000 |
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01382-0036) 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 York & Sawyer architectural credential is unusual and real. Buyers attentive to architectural pedigree find the firm's broader institutional work (Federal Reserve Bank, NY Athletic Club) differentiating among pre-war Park Avenue inventory.
The southern Park Avenue positioning is structural. Walking proximity to Hunter College, the Park Avenue Armory, the broader Lenox Hill cultural / institutional concentration, and the dense pre-war Park Avenue inventory immediately north.
Pricing is more accessible than Candela tier-one peers. 660 Park typically trades at materially more accessible per-square-foot pricing than the 1929–1931 Candela apex.
Confirm specific policies directly with management. Financing posture, flip tax structure, sublet specifics, and pied-à-terre allowance should be obtained directly during the contract review process.
Board approval follows tier-one Park Avenue norms. Strong financial profile, professional accomplishment, primary-residence intent are central criteria.
Renovation is constrained by historic district status. The board reviews scope and quality with attention to preservation of original detail.
What to know if you’re selling
The architectural pedigree is a particular marketing asset. Listing copy should reference York & Sawyer's broader portfolio (the Federal Reserve Bank of New York, the NY Athletic Club, the Brooklyn Trust Company) — the firm's residential work is rare and the credential differentiates 660 Park from the broader Park Avenue corridor.
Pricing requires apartment-level comparable analysis. Floor altitude, exposure, configuration, and renovation history all matter substantially.
Closing timelines are co-op standard. 6–10 weeks from contract signing to closing.
Comparable buildings
If you're considering 660 Park Avenue, also evaluate:
- 720 Park Avenue — Candela / Cross & Cross 1929; nearby tier-one Park Avenue
- 740 Park Avenue — Candela / Cross & Cross 1930; the Gold Coast apex
- 778 Park Avenue — Candela 1931; 18 full-floor apartments
- 555 Park Avenue — Blum brothers 1924; southern Park Avenue peer
- 730 Park Avenue — Lafayette Goldstone 1929; nearby pre-war tier-one
- 820 Fifth Avenue — Starrett & van Vleck 1916; nearby pre-war Fifth Avenue peer
The Roebling Team at 660 Park Avenue
The Roebling Team at Compass specializes in Central Park West, the Upper East Side, and the broader Park-facing Manhattan market. We publish this building profile because Park Avenue Lenox Hill buyers and sellers deserve building-specific intelligence — architecture, board culture, transactional mechanics, and pricing at the apartment level — not generic market commentary.
If you're considering a purchase or sale at 660 Park, a 30-minute consultation is the right starting point.
Get the full picture on this building.
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