1091 Lexington Avenue

The exterior is characteristic of refined late-1950s Upper East Side construction: a brick body on a limestone-trimmed base, organized as a clean, vertical facade without heavy ornament. The era's design emphasis was on the apartment interior and on light, not on facade decoration; the avenue base carries ground-floor retail in keeping with Lexington's mixed-use character.

Across the 16 stories, the roughly 95 apartments span a range of configurations, from compact one-bedrooms to larger two- and three-bedroom homes; some lines run to substantial three-bedroom, three-bath layouts in the 2,000-plus-square-foot range. Postwar signatures recur throughout: efficient room flow, generous closet runs, and large windows. Ceiling heights follow the postwar norm — typically below the pre-war maximum but paired with brighter, more practical interiors. Higher floors gain open exposures over the surrounding low- and mid-rise blocks; light and outlook improve materially with altitude on this stretch of Lexington.

1091 Lexington Avenue operates as a full-service postwar cooperative with door staff, elevator service, a live-in superintendent, central laundry, and private storage. The roughly 95-apartment scale supports a stable staffing model and the kind of low-key, residential operation that defines the better Lenox Hill postwar buildings.

The building maintains a no-pets policy, with service animals accommodated as required by law. As at most postwar co-ops on the avenue, the proprietary lease and house rules govern financing allowance, sublet, and pied-à-terre terms; a buyer's team reviews those documents as part of the board package.

Sales context at 1091 Lexington Avenue:

• Turnover is moderate given the roughly 95-unit scale — typically a handful of closings per year.
• Pricing spans a range by configuration and floor: compact one-bedrooms at the building's more accessible end, with larger two- and three-bedroom homes and higher-floor lines carrying meaningful premiums.
• Floor altitude, exposure, and renovation condition are the primary value drivers and vary apartment to apartment.

Specific recent trades are not represented here; the building's transaction record is available through The Roebling Research Library and recorded public data.

Central Lenox Hill location is the foundation. The 77th-and-Lexington position, with the 6 train at the door, is among the most walkable and transit-convenient on the Upper East Side.

Postwar plans differ from pre-war. Expect larger windows and efficient flow, with ceiling heights generally below the pre-war maximum — a practical, light-filled alternative to the corridor's pre-war stock.

Pricing is typically more accessible than the Park-block tier. Buyers can secure a strong Lenox Hill address here at per-square-foot pricing below Fifth and Park.

Note the pet policy. This is a no-pets building; animal-owning buyers should weigh that early.

Underwrite the apartment, not just the building. With a range of configurations across 16 floors, line- and floor-level comparable analysis matters more than building-wide averages.

Lead with location and convenience. Central Lenox Hill, walkability, and the 6 train at the corner are the headline for the building's buyer pool.

Price at the line and floor level. Exposure and altitude drive value dispersion; building averages understate the spread.

The full-service operation is a selling point. Door staff and a live-in superintendent distinguish the building within the postwar Lenox Hill set.

Closing timelines are co-op standard — generally 6–10 weeks from contract to closing, subject to board package and approval pace.

If you're considering 1091 Lexington Avenue, also evaluate:

• 1349 Lexington Avenue — Upper East Side cooperative on the same avenue
• 175 East 77th Street — nearby Lenox Hill full-service building
• 130 East 75th Street — nearby Lenox Hill cooperative, similar walkable position
• 14 East 75th Street — nearby Lenox Hill pre-war building
• 200 East 74th Street — nearby Lenox Hill postwar building, comparable era
• 976 Lexington Avenue — postwar Lexington Avenue cooperative peer

The Roebling Team at Compass specializes in the Upper East Side, Lenox Hill, and the broader Park-facing Manhattan market. We publish this building profile because Upper East Side 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 1091 Lexington Avenue, a 30-minute consultation is the right starting point.