114 East 90th Street

The building is a representative example of mid-1920s Upper East Side apartment design — a red-brick elevation over a quiet limestone base, even fenestration, and the masonry construction typical of pre-war apartments. There is no ornamental flourish here; the case rests on the original construction, and its current condition should be confirmed from recent engineering reports and board materials.

Inside, the 38 residences span the pre-war range, from intimate one- and two-bedrooms to larger layouts. Expect the hallmarks of the era: high ceilings, hardwood floors, separate kitchens, and the generous closet and foyer space that newer construction rarely matches. City records show about 53,000 gross residential square feet across 38 apartments, roughly 1,400 square feet of building area per apartment. That is gross area including corridors, walls and service space, not average apartment size, so compare each apartment's measured square footage.

114 East 90th is run as a full-service cooperative. A 24-hour doorman staffs the lobby and a live-in resident manager handles day-to-day operations, with a central laundry room, a fitness room, a bike room, a children's playroom, and individual storage bins among the shared amenities. The landscaped courtyard is usable outdoor common space.

The board permits pets; confirm species and limits in the house rules. Purchases are subject to board approval, financing is limited to 70% of the purchase price, and subletting is permitted with conditions; specific terms are set by the board and reviewed as part of the purchase application.

Recent sales

Recent transfers at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.

Market read. Most recent trades (2026 to date) cleared a median $916/sf (floor-adjusted) across 1 sale. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 3.2% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01518-0061). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. 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.

This is a board-approval building, so plan for a full co-op purchase application — financial disclosure, references, and a board interview. Budget for the building's 70% financing limit when structuring your offer. The building permits pets; confirm species and size limits in the house rules. Confirm the precise sublet terms and any flip tax with us before you bid so your underwriting reflects the building's actual rules rather than assumptions.

The location is a quiet residential block with the park and Museum Mile nearby, the 4/5/6 at 86th Street and the Second Avenue line to the east. Location does not guarantee that value holds in every market; compare recent sales of similar apartments.

The selling story is location and full-service stability. The leafy side-street setting and a deep amenity package — courtyard, gym, playroom, doorman — are exactly what buyers in this segment are underwriting. Pricing should be benchmarked against comparable pre-war Carnegie Hill co-ops of similar service level rather than against condominiums or Fifth Avenue trophies; the buyer here is choosing co-op value and neighborhood, and the comparable set should reflect that. A renovated, well-lit apartment with the building's amenities behind it competes well, and the pet-friendly policy widens the buyer pool meaningfully.

If you're weighing 114 East 90th Street, also consider these nearby Carnegie Hill and Upper East Side cooperatives:

• 14 East 90th Street — pre-war co-op on the same street
• 60 East 88th Street — Carnegie Hill pre-war cooperative
• 1192 Park Avenue — full-service Park Avenue co-op nearby
• 8 East 96th Street — pre-war cooperative to the north
• 58 East 96th Street — Carnegie Hill full-service co-op