10 Madison Square West

The original building is a substantial early-twentieth-century masonry structure — a William Van Alen design with the heavy, dignified presence of its era. The conversion preserved that character at street level and through the lower floors while raising a contemporary residential tower above, the demolition of a section of the old structure clearing the way for the added height. Because the work touched the exterior within the Madison Square North Historic District context, it proceeded through Landmarks review.

Inside, Alan Wanzenberg's interiors set the tone: wide-plank white oak floors, beamed ceilings, and large windows throughout, with the tower residences on the upper floors carrying ceilings over 11 feet and direct outlooks across Madison Square Park. The 125 residences range from one- to five-bedroom layouts, including the marquee tower homes that are the building's crown. This is collector-grade product — generous proportions, high-specification finishes, and a park-front position that cannot be replicated.

The building runs as a full-service luxury condominium with one of the deepest amenity programs in the district. A 24-hour doorman, concierge, porter, and live-in resident manager staff the property. The centerpiece is a 10,000-square-foot fully staffed club with a fitness center, a lap pool, yoga and Pilates studios, a spa treatment room, and steam and sauna; a 5,100-square-foot landscaped courtyard garden, a children's playroom, refrigerated lobby storage for fresh deliveries, and bicycle storage complete the suite.

As a condominium, financing is flexible and free of the strict caps common at co-ops, pets are welcome, and subletting, pied-à-terre ownership, and purchases through trusts or LLCs are permitted under the bylaws — the ownership latitude that suits the international and second-home buyers this caliber of building attracts.

Recent sales

Recent closings at this building, curated by The Roebling Team research desk. Apartment-level facts are independently verified before publishing; sale prices reflect the recorded transfer amount at the NYC Department of Finance.

Market read. Most recent trades (2026) cleared a median $2,475/sf across 1 sale. Median listing discount 7.9% 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 1-00826-7501) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. 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.

This is a trophy purchase, and the variables are the floor, the line, and the park outlook. The tower residences with high ceilings and direct Madison Square Park views are the building's signature product and price accordingly; lower and interior homes deliver the same finishes, club, and address at gentler numbers. The condominium structure means a lighter purchase process than a co-op — a right-of-first-refusal rather than a board package and interview — plus flexible financing and the freedom to sublet or hold as a second home.

The amenity club and the park-front position are the durable advantages here; a buyer is paying for an irreplaceable address as much as for the residence. Because the building trades thinly, the right comparison set extends to the broader top tier of NoMad and Flatiron new-and-converted condominiums — we help build that comparison and read the offering plan, finish condition, and where each line sits on price.

The marketing core is the combination no competitor can fully copy: a William Van Alen building converted to the highest specification, a 10,000-square-foot private club with a lap pool, and a direct Madison Square Park frontage. Those are durable differentiators that distinguish a resale here from anything in the surrounding new-construction stock.

Pricing should benchmark against the top of the NoMad–Flatiron condominium market rather than the neighborhood average, and the listing should lead with the residence's specific outlook — a direct park view is the building's most valuable attribute. With only 125 homes and thin available inventory, a well-positioned resale benefits from scarcity. Condominium resales clear through a right-of-first-refusal rather than a co-op board, giving a faster, more predictable close that appeals to the building's flexibility-minded buyer.

If you're evaluating 10 Madison Square West, these nearby Flatiron and NoMad buildings make a useful comparison set:

• 141 Fifth Avenue — Flatiron condominium nearby
• 175 Fifth Avenue — the Flatiron Building, a few blocks south
• 284 Fifth Avenue — NoMad building on Fifth Avenue
• 45 East 22nd Street — Madison Square Park condominium tower
• 21 East 26th Street — Madison Square Park building
• 23 East 22nd Street — Madison Square Park condominium

The Roebling Team at Compass specializes in NoMad, Flatiron, the Madison Square Park condominium market, and the broader Manhattan luxury sector. We publish this profile because buyers and sellers evaluating a top-tier park-front condominium deserve building-specific intelligence — how the conversion and the Van Alen pedigree shape value, what the private club and park position are worth, and where each line sits against the neighborhood's best inventory.

If you're considering a purchase or sale at 10 Madison Square West, a 30-minute consultation is the right starting point.