43 W 21ST Street #PH
MLS® #RLS10783614
Listing by Serhant
3
Bedrooms
3
Baths
2,691
Sq. Ft.
1910
Year Built
Quick Summary
Property Highlights
- Exposure: North,South facing
- Outdoor Space: Building Terrace, Terrace
- Fireplace: Wood-burning or decorative fireplace
Property Details
Description
Stunning Duplex Penthouse with 2 Terraces & A Wood-Burning Fireplace! Welcome to this massive, pristinely renovated duplex condo in the heart of Flatiron! A wonderful 3-bedroom, 3-bathroom penthouse with approximately 2,691 square feet of magnificent interiors, plus approximately 1,400 square feet of outdoor space throughout two amazing private terraces. Ideal for modern lifestyles, the home features a grand living/dining room, huge chef's kitchen, home office/den, and a home gym. A massive skylight allows abundant sunlight to be received from the home's south and north exposures. Two HUGE private terraces are ideal for sun lounging, alfresco dining, and urban gardening. Finishing comforts include a charming wood-burning fireplace, white-washed exposed brick, oversized sash windows, gorgeous hardwood floors, key-locked elevator with direct access, central A/C and heat, Lutron lighting, and an in-home laundry room with a washer/dryer. The lower level of the home begins with an open-concept living room, dining room, and kitchen brimming with abundant natural light from the massive skylight and large windows. The living room boasts grand proportions and a beautiful fireplace, while the kitchen is equipped with a huge island, Carrara marble countertops, subway tile backsplash, custom black-and-white cabinets, and a suite of high-end stainless steel appliances from Viking and Sub-Zero. Just past the kitchen is a quiet den, also suitable for a private home office. Two bedrooms, two bathrooms, and a convenient laundry room complete this wonderful level. Both bedrooms have large reach-in closets, and both full bathrooms have stylish fixtures. A curving skylit staircase flows up to a second level with the primary bedroom and a sunny home gym/library, plus two large terraces. The primary suite opens out onto a north-facing terrace with lush planters and privacy fencing. It also features a walk-in closet and a full en-suite bathroom with a walk-in shower. The home gym/library leads out onto a planted south-facing terrace with classic Flatiron views. 43 West 21st Street is a boutique condominium located in the Flatiron District. The building is moments from a multitude of restaurants, bars, cafes, and shops, and is close to Eataly, Madison Square Park, NoMad, and Chelsea. Nearby subway lines include the 1/F/M/N/R/W. The taxes shown reflect a primary residence abatement.
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
121
Median Asking Price
$2.29M
Median $/Sqft
$1,700
Avg Days on Market
N/A
New This Week
9
Price Reduced
31%
Sold (30 Days)
11
Median Sale Price
$2.80M
Live data from RLS at REBNY • Updated 3/24/26, 6:22 PM EST
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Location
43 W 21ST Street #PH, Flatiron, New York County
Floor Plans
Listing Data
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Market Data
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Listing Courtesy of Serhant - Nicole Palermo
Listing Contact: (917) 226-2704
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RLS Data display by Keller Williams NYC. Data last updated on 3/24/2026 at 10:22 PM UTC