- Year built
- 1929
- Type
- Cooperative
- Units
- 68
- Floors
- 21
- Landmark
- Designated
- Pets
- Permitted
1120 Park Avenue is the most architecturally consequential Bing & Bing Park Avenue commission of the late 1920s and one of the architecturally most distinctive Carnegie Hill cooperatives for a structurally specific reason: the 21-story height is unusual for the Carnegie Hill stretch of Park Avenue, producing long avenue views from the upper-floor inventory that peer same-vintage Park Avenue cooperatives at the standard 14-to-16-story scale cannot match.
The architectural composition by George Fred Pelham (Sr.) — distinct from his son Pelham Jr., who designed 50 Park, 785 Park, and 1150 Park — produces a "wedding-cake" upper-floor massing that emphasizes the upper-story setbacks and the center section of the façade. The neo-Georgian register, executed in brown brick with limestone trim, places 1120 Park in a stylistic vocabulary structurally distinct from the broader Italian Renaissance / Renaissance Revival mainline that dominated the corridor's late-1920s residential building cycle.
Pelham Sr.'s body of work is among the most prolific in early-20th-century New York architectural history — an attributed body of work exceeding 1,245 New York buildings. The Bing & Bing developer pedigree connects 1120 Park to the firm's broader Park Avenue and Greenwich Village body of work; Bing & Bing (Leo S. and Alexander S. Bing) was, alongside the Helmsleys, Tishmans, and a small handful of other 1920s Manhattan developers, among the most consequential builders of the city's luxury apartment-house tradition.
The 1961 cooperative conversion places 1120 Park among the post-war Park Avenue cooperative conversions of the broader corridor.
Architecture and unit composition
The 68 cooperative apartments distribute across the building's 21 stories. The 21-story height is the building's structural identity feature: upper-floor apartments carry long avenue views and the structural visibility that the unusual height permits. The wedding-cake upper-floor massing produces a structural setback configuration that supports private terraces on upper-floor apartments — particularly the Penthouse C configuration and other top-floor units, which carry significant landscaped terrace space.
Apartment-level features carry the late-1920s Park Avenue layout discipline characteristic of Pelham Sr.'s Bing & Bing planning approach: substantial ceiling heights, formal entry arrangements, library-living combinations, formal dining configurations, and the staff-wing infrastructure characteristic of pre-Depression Park Avenue construction.
Brown Harris Stevens has Unit 14B listed at $5,300,000 (Listing ID 23168949) with contract signed as of recent reporting. Several penthouses have been on the market in 2025–2026. Recent pricing positions in the mid-to-upper Carnegie Hill pre-war cooperative range.
A note on resident attribution: Press references occasionally connect the Maurice Tempelsman / Jackie Kennedy Onassis penthouse story to 1120 Park; the canonical Tempelsman residence is at 1155 Park Avenue (Lyons / Bing & Bing 1915 with Roth penthouses). The Tempelsman attribution should be retired from any 1120 Park reference.
Building operations
1120 Park operates as a full-service white-glove cooperative with full-time doorman, live-in superintendent, and the institutional service infrastructure consistent with the trophy pre-war Carnegie Hill tradition. Specific amenity inventory should be verified directly against current management documents.
The cooperative policy framework supports pet ownership. Specific financing maximum, flip tax structure, pied-à-terre allowance (handled case-by-case), and sublet duration limits should be verified directly during due diligence.
What to know if you’re buying
The 21-story height is structurally distinguishing. Unusually tall for the Carnegie Hill stretch of Park Avenue; upper-floor apartments carry long avenue views uncommon in peer cooperative inventory.
The George Fred Pelham (Sr.) architectural pedigree is real. Among the architect's most prolific late-1920s Park Avenue commissions; the Pelham Sr. attribution distinguishes the building from his son Pelham Jr.'s late-pre-war 1939–1941 commissions at 50 Park, 785 Park, and 1150 Park.
The Bing & Bing developer pedigree is structural. The firm's broader Park Avenue and Greenwich Village body of work connects 1120 Park to a substantial institutional development tradition.
The wedding-cake upper-floor massing produces structural terrace space. Penthouse C and other top-floor configurations carry landscaped terrace infrastructure uncommon in peer Carnegie Hill cooperative inventory.
The Park Avenue Historic District protection applies. Designated LP-2547 by the NYC LPC on April 29, 2014.
Verify operational specifics during due diligence. Specific board approval framework, financing structure, flip tax, sublet duration limits, current capital project pipeline, and the LL11 façade cycle on the 1929 vintage should be reviewed against current management documents.
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 21-story height advantage and the upper-floor avenue views. Both are structural identity features that distinguish the building from peer Carnegie Hill cooperative inventory.
The Bing & Bing developer pedigree and the Pelham Sr. architectural credential support premium positioning. Both are real institutional credentials.
The Penthouse C terrace configuration is structural. Marketing on upper-floor inventory should emphasize the landscaped terrace infrastructure.
Pricing should reference recent comparable closings. The Unit 14B $5,300,000 BHS contract provides recent reference; apartment-line-specific comparables should anchor positioning.
Closing timelines are cooperative-standard.
Comparable buildings
If you're considering 1120 Park Avenue, also evaluate:
- 1112 Park Avenue — Emery Roth 1927; immediate same-block Carnegie Hill peer at the East 90th corner
- 1125 Park Avenue — Schwartz & Gross 1926; immediate same-block Carnegie Hill peer
- 1130 Park Avenue — Pelham Jr.; nearby Carnegie Hill peer (already on the existing 186-slug list)
- 1133 Park Avenue — pre-war Carnegie Hill peer (already on the existing 186-slug list)
- 1175 Park Avenue — Emery Roth 1925; nearby Carnegie Hill peer (already on the existing 186-slug list)
The Roebling Team at 1120 Park
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 Carnegie Hill buyers and sellers deserve building-specific intelligence — architectural attribution, board context, and pricing at the apartment level.
If you're considering a purchase or sale at 1120 Park, a 30-minute consultation is the right starting point.