10 Madison Square W 16D
$12,500,000
MLS# RLS20123271 · Flatiron
Listed October 29, 2026 · New today
4 Beds 5 Baths 3,309 Sq.Ft.
About This Property
Enjoy spectacular protected views of Madison Square Park and the Flatiron Building from an impeccably crafted 3,309 square foot, 4-bedroom, 4.5-bathroom loft-like corner home. Apartment 16D is enviably sited high atop the prestigious 2016 residential conversion of the 1915 limestone and brick landmark designed by William Van Alen, of Chrysler Building fame. The thoughtful floor plan was conceived by noted American architect and designer, Alan Wanzenberg. There has been no other park-facing unit of this size available for resale on the top 6 floors of 10 Madison Square West.
An Entry Gallery and Hallway finished in Venetian plaster lead to the expansive corner Great Room (22'9 by 37'2), distinguished by stunning views of Madison Square Park and the surrounding iconic limestone buildings.
The adjacent Chef’s Kitchen is well-appointed with classic white SieMatic cabinetry, Bianco Carrera marble, top-of-the-line appliances by Sub-Zero, Wolf and Miele and features a windowed Dining Area and a Breakfast Bar. The Primary Suite is comprised of a sumptuous Bedroom overlooking the park, 3 large custom-designed walk-in closets, and a lavish Primary Bath which includes a double vanity, soaking tub, and separate stall shower and is finished with Carrara marble walls, radiant heated floors and Dornbracht fixtures. Each of the 3 generously proportioned secondary Bedrooms enjoy open southern skies and feature en suite bathrooms and generous closets; the fourth also includes a walk-in closet.
A Powder Room and Utility Closet with a side-by-side washer and vented dryer complete this exceptional home. All the state-of-the-art windows have been fitted with custom electronic window treatments. Services include a full-time Doorman, Concierge, Porter and an on-site Resident Manager. Amenities include a 10,000 square foot Residents’ Club with a Fitness Center managed by The Wright Fit, a 60 foot lap pool and hot tub, Yoga, Pilates and high energy studios, with a spa treatment room, locker rooms with private steam rooms and saunas, a Children's Playroom, bike storage and a second floor Courtyard Garden designed by award-winning landscape architects, Matthews Nielsen.
Operating Assessment of $1,393.99 is billed monthly.
Showings permitted by appointment with 48 hours' notice, 1:00PM - 4:00PM on Mondays, Wednesdays, and Thursdays.
Agent's Note
From Curtis Bain. Details about the apartment are drawn from the listing information provided through RLS by Sothebys International Realty.
The Great Room is a corner space measuring 22 feet 9 inches by 37 feet 2 inches, and the Chef's Kitchen sits beside it, so the main living area reads as one connected floor. The windowed Dining Area and the Breakfast Bar sit off the kitchen, which makes it easy to cook while someone's in the Great Room. Corner positioning can add exposure and a more varied outlook, though what you actually get depends on the buildings around it.
The kitchen has white SieMatic cabinetry, Bianco Carrera marble, and Sub-Zero, Wolf and Miele appliances, including a dishwasher. The Great Room and the primary bedroom both look out over Madison Square Park, and the listing notes skyline views as well.
The primary suite has three custom-designed walk-in closets and a bath with a double vanity, a soaking tub and a separate stall shower. The bath has Carrara marble walls, radiant heated floors and Dornbracht fixtures. Three secondary bedrooms each have an en suite bathroom and generous closets, and the listing places them facing south. The fourth bedroom also has a walk-in closet, so it's easy to use as a guest room or an office.
The building has a full-time doorman, concierge and porter, plus an on-site resident manager. You'll find a fitness center, a lap pool with a hot tub, and yoga and pilates studios on the premises, along with a spa treatment room and locker rooms with private steam rooms and saunas. There's also a children's playroom, bike storage and a second floor courtyard garden. The apartment has its own washer and dryer, so laundry stays at home.
Quick answers+
Does the apartment have in-unit laundry?
Yes. There's a washer and dryer in the unit, located in a utility closet.
Does the building have a doorman?
Yes. There's a full-time doorman, along with concierge and porter service and an on-site resident manager.
What amenities does the building have?
There's a gym, sauna, spa, steam room, yoga studio, bike room, cold storage, a children's playroom, a courtyard and a garden.
Curtis Bain
Brown Harris Stevens
Property Features
Home features
- Washer/dryer in unit
- Central air
- Skyline view
- Dishwasher
- Breakfast bar
- Entrance foyer
- High ceilings
- Soaking tub
- Sauna
- Walk-in closets
Building amenities
Services and facilities
- Bike room
- Cold storage
- Concierge
- Elevator
- Laundry in building
Wellness and recreation
- Children's playroom
- Gym
- Sauna
- Spa
- Steam room
- Yoga studio
Outdoor space
- Courtyard
- Garden
Some building amenities are reported on other current listings in this building. Confirm amenities and building policies before relying on them.
Estimate
Monthly Cost & Closing Costs
The rate is a placeholder, not a quote. Enter the one your lender gives you.
$75,909 / month
- Principal and interest$63,207
- Common charges$5,488
- Property taxes$7,214
Due at closing
- Down payment (20%)$2,500,000
- NYS “mansion tax” (3.25%)$406,250
- Mortgage recording tax (1.925%)$192,500
Not included: attorney, title insurance, lender and appraisal fees, board application and move-in fees, flip tax and prepaid items. Estimates only, based on the published New York State rates. Your attorney and lender will confirm the real figures.
Gallery
Property Photos
Listing Courtesy of Sothebys International Realty
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved.