15 Union Square W #Penthouse
MLS® #RLS10614054
Listing by The Corcoran Group
3
Bedrooms
4.5
Baths
3,164
Sq. Ft.
1900
Year Built
Quick Summary
Property Highlights
- Views: City
- Exposure: East,North,South,West facing
- Outdoor Space: Terrace, Rooftop
Property Details
Description
Reintroducing the ultimate in Penthouse living, this truly one-of-a-kind home features over 5,000 SF of extraordinary indoor and outdoor living spaces with incredible custom details and skyline views. Completely redesigned by D?Apostrophe, the 3 bedroom and 3.5 bath residence has expansive private outdoor space on both the upper and lower levels. Premium upgrades grace the ambience throughout, such as beautiful 6? white oak plank hardwood floors, custom espresso stained white oak paneling, and superior total home technology that affords a seamless luxury lifestyle. A private entrance awaits off the dual elevators, leading into a gracious gallery. Beyond is a wonderful open-concept great room with floor-to-ceiling windows flooding the space with natural light. The dramatic living and dining room with a gas-burning fireplace is a perfect backdrop for entertaining. Take the party outside to enjoy al fresco dining and cocktail parties on the lower level terrace with a built-in grill, modern dining pergola, and awe-inspiring vistas. Back inside, the chef is busily preparing delicacies in the sleek open kitchen, connected to the dining area by a large marble-topped island. This inspiring culinary setting is also adorned with rift-cut oak wood cabinetry, punctuated by top-of-the-line appliances by Viking, Sub-Zero and Miele. The main level also presents 2 bedrooms overlooking the park, complemented by en-suite baths with travertine marble floors, bleached oak vanities with Corian counter, and nickel-plated fixtures. The powder room is outfitted with a custom concrete sink and adjoins a separate laundry room with washer and dryer. The peaceful upper level, accessed by a floating staircase, is reserved for the serene primary bedroom suite, which opens onto a private rooftop terrace with an outdoor fireplace and hot tub for the ultimate relaxation. A windowed walk-in closet, and elegant en-suite bath with a wet room shower, 2 TVs with surround sound, a double-sink marble vanity, Toto toilet and heated floors enhance the pampered experience. At the touch of a finger, the home automation system, powered by Savant and monitored by OneButton, allows you control of all lighting, window shades, HVAC, TV, music and security. A conversion of Tiffany & Company?s 19th century headquarters, 15 Union Square West is a coveted high-end boutique condominium with hotel-like amenities including a 24-hour doorman, onsite concierge services, spa with a 50? lap pool, oversized whirlpool, state-of-the-art fitness center with yoga studio and a recreation room. The premier location at Union Square Park is in the heart of it all, near incredible cafes and restaurants, and premier shopping. There is a 1% transfer fee to be paid by the purchaser.
Features & Amenities
Interior Features
Exterior Features
Appliances
Building Information
Financial Details
About Flatiron
View All Flatiron ListingsThe Flatiron District is a vibrant intersection of history, technology, and luxury living. Named after the iconic Flatiron Building, the neighborhood is centered around Madison Square Park and is a hub for the city's 'Silicon Alley.' The real estate market is famous for its grand cast-iron loft buildings with high ceilings and expansive floor plans, alongside ultra-luxury glass towers that offer modern amenities and central Manhattan convenience.
Flatiron Live Market Data
View NeighborhoodActive Listings
120
Median Asking Price
$2.27M
Median $/Sqft
$1,690
Avg Days on Market
N/A
New This Week
5
Price Reduced
31%
Sold (30 Days)
11
Median Sale Price
$2.80M
Live data from RLS at REBNY • Updated 3/25/26, 3:58 AM EST
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Location
15 Union Square W #Penthouse, Flatiron, New York County • Near Union Square West & East 15th Street
Floor Plans
Listing Data
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Market Data
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Map & Location
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Listing Courtesy of The Corcoran Group - Dana Power
Listing Contact: (917) 209-4550
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RLS Data display by Keller Williams NYC. Data last updated on 3/25/2026 at 7:58 AM UTC