911 Seventh Avenue

The façade is the building, and the building is the façade. Harde & Short's terracotta program is among the most complete expressions of decorative architecture in New York — a landmark protected precisely because its ornament cannot be reproduced. The main entrance on the corner of Seventh Avenue and 58th Street leads into a building whose exterior commands attention from blocks away.

The original large suites were rebuilt as smaller apartments decades before the cooperative era — the building's National Register nomination dates that work to 1938 — and the 1980 conversion changed the ownership, not the layouts. City tax records list 75 cooperative apartments today. Homes range across a variety of layouts, many retaining the high ceilings and gracious proportions of a pre-war building of this caliber, with the most desirable lines capturing light over the surrounding streetscape or onto the famous interior courtyard. Buyers here are acquiring a piece of a designated landmark, and the homes are valued accordingly — for their setting inside one of the city's great buildings as much as for their individual configuration.

Alwyn Court runs as a full-service cooperative. A doorman staffs the lobby, a live-in superintendent manages the property, and residents have access to a central laundry, bicycle storage, and the celebrated interior octagonal courtyard with its Haas mural. As a designated landmark, the building's exterior is protected, and the cooperative maintains it to the standard its history demands.

As with any cooperative, ownership involves a board: a buyer prepares a purchase application and interview, and the board reviews financials and intended use. Prospective owners should expect the diligence typical of a well-run pre-war co-op and come to the process prepared. The reward is membership in one of the most distinctive buildings in New York, with the stewardship that landmark status entails.

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. $/sf is measured on the latest sales with reliable square footage (2025): a median $932/sf (floor-adjusted) across 1 sale. The building has traded as recently as 2026. Median listing discount 3.3% 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 1-01010-0061). 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.

Evaluate the landmark setting. Alwyn Court is a designated landmark with an elaborate terracotta façade; assess the particular apartment and the cooperative’s current condition and financial obligations. That history establishes a distinct architectural identity; it does not assure price stability or future investment performance.

Prepare for the cooperative process. Ownership is co-op, with a board application and interview; approach it with a complete, well-prepared package. Confirm the specific home's layout, ceiling height, light, and condition — homes in a building of this vintage vary, and the right line is the one whose proportions and outlook match the buyer.

Value the location. Steps from Carnegie Hall, a short walk to Columbus Circle, the southwest corner of Central Park, and the West 57th Street cultural and retail spine, with deep transit access nearby — the setting is as strong as the architecture.

Lead with the building. The terracotta landmark, the Haas courtyard, and the architectural pedigree are the building's irreplaceable assets and the centerpiece of any marketing — they distinguish a home here from every other cooperative in the corridor. Sell the building, then the home.

Benchmark to landmark and distinguished pre-war co-ops. A resale belongs against the corridor's finest pre-war cooperatives, where buyers pay for character, provenance, and proportion. The landmark status and the building's fame are differentiators that widen the audience well beyond a typical co-op listing.

Present to the pre-war strengths. Buyers drawn here respond to ceiling height, original proportion, light, and the romance of the building itself; a well-prepared home that showcases those qualities will stand out, with current competition established from dated listings.

If you're considering Alwyn Court, these nearby distinguished buildings are worth evaluating:

• 112 Central Park South — Central Park South cooperative
• 50 Central Park South — Central Park South condominium
• 200 Central Park South — Wechsler's 1963 Central Park South cooperative
• 150 West 56th Street — Midtown full-service building near the park
• Essex House — Central Park South landmark residence
• Hampshire House — Caughey & Evans's 1931 Central Park South cooperative