455 Central Park West (Former New York Cancer Hospital)

The landmark presents its ashlar sandstone base and red-brick upper stories to the park, with stone belt courses, round medallions between paired windows, Gothic dormers, and a five-arch loggia on the principal wing; the 1889–1890 campaign added the western towers, and early-20th-century laboratory and X-ray wings filled out the parcel. The 2000–2004 project restored the envelope and inserted residences with circular rooms and other plans shaped by the former hospital: apartment 9LM, for example, carries a 36-foot-diameter circular living room opening to a 26-foot terrace, and the Chapel residence spans four levels under the original vaulted volume.

The tower, by RKTB, rises in red brick deliberately keyed to the landmark's masonry at the northwest corner of the site. Its roughly 83 apartments run from one-bedrooms through three-bedroom lines of about 2,000–2,450 square feet on the upper floors, topped by penthouses — the largest about 3,540 square feet with terrace per listing records. Park views begin low on the eastern exposures, because the building faces the park across the avenue with no tall structure in front of it; northern and western lines look over Manhattan Valley toward the river.

This is a full-service condominium: 24-hour doorman and concierge, live-in resident manager, porter staff, on-site garage, private storage, children's playroom, business center, and the Landmark Club amenity suite (fitness center and indoor pool per listing records). The garage is a separate condominium unit under the offering plan. Alterations run through a formal alteration agreement — on file with us — with board and engineer review; construction is limited to weekday working hours under the house rules. The offering plan with by-laws, house rules, and audited financial statements are on file in The Roebling Research Library and available to clients during diligence.

Recent sales

Recent closings 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 $772/sf (recorded) across 1 sale. Median listing discount 2.8% 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 1-01841-7503; each condominium apartment is its own tax lot). 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 from recorded condo declarations and offering plans.

Decide which building you're buying. The tower and the landmark are different products at different price points: conventional, view-driven apartments in the tower; museum-grade circular volumes, fireplaces, and irregular plans in the landmark. Furniture placement in a 36-foot round room is a real design question — see the actual unit, not the floor plan, before forming a view on value.

Understand the Columbia right of first refusal. Every resale notice goes to both the board and Columbia University; Columbia has 15 business days to waive, then the board has 10, per the by-laws and purchase application on file. Build that timeline into your contract and financing schedule. The university's presence in the tower also means a stable institutional ownership block — worth understanding, not fearing.

Park exposure is structural here. The building fronts the park directly, so east-facing tower lines get protected views from relatively low floors — a different value proposition from mid-block "park view" claims elsewhere. Price the line and floor specifically.

Landmark mechanics apply to the envelope. The 1976 individual designation protects the chateau; exterior work runs through the LPC. Interior alterations run through the building's alteration agreement with engineer review — budget timeline accordingly.

Calibrate the location honestly. West 105th Street is the quiet, brownstone-lined end of the corridor: the park's North Woods and pool at your corner, the B/C at 103rd Street, and a meaningfully lower price per foot than the avenue's blocks below 96th. Buyers trading uptown for space should spend time on the block at different hours.

Sell the story — it is verifiable. Haight, the Astor funding, the circular wards, the 1976 designation, the award-winning restoration: this building has one of the best documented narratives on the avenue, and the buyer pool for distinctive product responds to it. We market from the records, not adjectives.

Manage the right-of-first-refusal timeline proactively. The Columbia and board waiver periods are sequential; a well-assembled notice package keeps a deal on schedule. We prepare it with the managing agent at contract signing, not after.

Landmark units need bespoke pricing. Circular great rooms and the Chapel residence require adjustments for layout, size, condition and outdoor space. Use dated landmark-unit sales and broader comparable transactions; same-building tower sales may provide context with explicit adjustments.

If you're considering 455 Central Park West, also evaluate:

• 415 Central Park West — pre-war park-front neighbor two blocks south
• 400 Central Park West — full-service park-front alternative at 100th Street
• 420 Central Park West — park-block neighbor at 102nd Street
• 392 Central Park West — post-war condo alternative on the park at 100th Street
• 382 Central Park West — park-front condo at 97th–98th Streets
• 478 Central Park West — the corridor's northern neighbor above 107th Street
• The Eldorado (300 Central Park West) — the twin-towered pre-war co-op benchmark for park-front drama further south
• One Museum Mile (1280 Fifth Avenue) — the cross-park comparison: amenity-rich condo product at the park's northeast corner