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21 W 17th Street 4

$2,600,000

MLS# RLS20124162 · Flatiron

Listed November 3, 2026 · 2 days on the market

3 Beds 2 Baths 1,427 Sq.Ft.

About This Property

LOUIE 17 An architectural masterpiece that represents a union of European elegance and American industrialization, remarkably integrating the style of Flatiron, Chelsea, and Union Square neighborhoods with timeless interior aesthetics. Welcome to Residence #4, a 3-bedroom 2-bathroom apartment featuring a private outdoor space, floor to ceiling picture windows with classic city views, and a private elevator access. The unit occupies the whole floor and has South and North exposures. Your new home design represents a celebration of function and style by offering an expansive living area, beautiful white oak floors throughout, top of the line appliance package including in-unit Miele washer and dryer, and ample closet space. Unveil the heart of culinary excellence in the open kitchen, where custom-crafted rich oak cabinetry glows under sophisticated illumination. The elegance of stone slabs meets the warmth of GRAFF brass fixtures, creating an ambiance of refined luxury. Complemented by a massive Vigil stone island and an exquisite Miele appliance package, including the multi-function speed oven and the built-in espresso bar, your new kitchen is a testament to gourmet perfection, designed for both the avid chef and the lover of beauty. The luxury of the kitchen is mirrored in the serene tranquility of the primary and secondary bathrooms. Stone slabs expanses lay the foundation for elegance, paired with custom oak vanities that speak of meticulous craftsmanship. GRAFF brass fixtures add a touch of warmth, enhancing the sophisticated ambiance. Here, every moment is an invitation to unwind in an oasis of refined comfort of a steam shower or a deep soaking tub. Both primary and second bathrooms filled with imported high-end finishes, including Albarium stone flooring, dimmable backlit mirrors, and smoke glass sconces, are the epitome of luxury. LOUIE 17 is a brand-new boutique condominium nestled in the heart of Ladies Mile Historic District, the symbol of Gilded Age architecture and New York City grandeur. Inspired by the notable loft style NYC buildings by a prominent architect Louis Korn, LOUIE 17 is the collaborative work of the strong team of New York City and European architects, interior designers, and marketing specialists. The building features a collection of 9 full floor residences available in 3-bedroom full-floor layouts and enhanced by direct elevator access and private outdoor spaces. Residents will enjoy the opulence of common spaces that include meticulously designed lobby, fitness room, spa, and a stunning rooftop with endless city views, lush planters, lounge chairs and grills. LOUIE 17 is located at the intersection of three New York City’s posh neighborhoods: Flatiron, Chelsea, and Union Square. Dozens of restaurants, cafes, bars, grocery stores, parks, entertainment options, and shops are steps away from its residents including Ralph’s Coffee, Levain Bakery, Eleven Madison Park, Eataly, Whole Foods, Trader Joe’s and many others. Nearby subway lines include L/N/Q/R/W/4/5/6/F/M/1/2/3.

Agent's Note

From Curtis Bain. Details about the apartment are drawn from the listing information provided through RLS by Nest Seekers LLC.

The kitchen opens into the living and dining area, and that's the trade-off. A Vigil stone island and a Miele speed oven sit in the same room as the sofa, which keeps the apartment connected, but there's less separation between cooking, working and relaxing. Custom oak cabinetry, stone slabs and GRAFF brass fixtures make it a finished room, and the built-in espresso bar suits people who like their first coffee at home.

The apartment takes up the whole floor and has south and north exposures, with floor-to-ceiling picture windows. The south side gets about 8.5 hours of direct sun on a winter day and about 10 hours at the equinoxes, though nearby buildings can block some of it. The north side gets about 4.2 hours of direct sun around the summer solstice.

Private elevator access goes directly to the unit, and the building itself has an elevator across its 14 stories. The private outdoor space is under 60 square feet, so it's more a spot for a morning coffee than a place to host.

The primary and secondary bathrooms have Albarium stone flooring, dimmable backlit mirrors and GRAFF brass fixtures, with either a steam shower or a deep soaking tub. The Miele washer and dryer are in the unit, and the listing notes ample closet space, which matters in a three-bedroom layout.

The 14 St-Union Sq station, with the 4, 5, 6, L, N, Q, R and W trains, is about 6 minutes on foot, and Union Square Park is about 5 minutes away. Trader Joe's is about 6 minutes on foot. The building sits in the Ladies' Mile Historic District and has 13 units.

Quick answers+

Does the apartment have in-unit laundry?

Yes. The Miele washer and dryer are in the unit.

Is there private outdoor space?

Yes. The apartment has private outdoor space under 60 square feet, along with a balcony.

Does the building have an elevator?

Yes. The building has an elevator, and the apartment has private elevator access.

Property Features

Policies

  • Pets allowed

Home features

  • Washer/dryer in unit
  • Central air
  • City view
  • Balcony
  • Private outdoor space (under 60 sq ft)

Building amenities

Services and facilities

  • Elevator

Outdoor space

  • Garden
  • Roof deck

Estimate

Monthly Cost & Closing Costs

The rate is a placeholder, not a quote. Enter the one your lender gives you.

$16,324 / month

  • Principal and interest$13,147
  • Common charges$551
  • Property taxes$2,626

Due at closing

  • Down payment (20%)$520,000
  • NYS “mansion tax” (1.25%)$32,500
  • Mortgage recording tax (1.925%)$40,040

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.

About the Building

21 W 17th Street is a 14-story elevator apartment building in Flatiron, completed in 2024 and home to 13 residential units. It sits within the Ladies' Mile Historic District.

The closest subway is 14 St (1, 2, 3, F, L, M), about a 4-minute walk. Union Square Park is roughly 5 minutes away on foot.

Compiled from NYC public records and open data.

Year Built
2024
Stories
14
Units
13
Building Type
Elevator Apartments
Historic District
Ladies' Mile Historic District

View 21 W 17th Street building profile and all listings →

Location & Nearby

Map

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21 W 17th Street 4

Subway

  • 123FLM14 StAbout 4 min walk · Accessible
  • 456LNQRW14 St-Union SqAbout 6 min walk · Accessible
  • RW23 StAbout 7 min walk
  • 118 StAbout 8 min walk

Parks

  • Union Square ParkAbout 5 min walk
  • Madison Square ParkAbout 8 min walk

Public schools · Elementary schools

  • Sixth Avenue Elementary SchoolAbout 3 min walk
  • Ballet Tech, NYC Public School for DanceAbout 5 min walk
  • P.S. 41 Greenwich VillageAbout 10 min walk

Middle schools

  • New York City Lab Middle School for Collaborative StudiesAbout 14 min walk
  • M.S. 255 Salk School of ScienceAbout 17 min walk

High schools

  • The Clinton SchoolAbout 5 min walk
  • Harvest Collegiate High SchoolAbout 5 min walk

Colleges & universities

  • The New SchoolAbout 8 min walk
  • Pratt InstituteAbout 8 min walk
  • Baruch College (CUNY)About 12 min walk
  • New York Studio SchoolAbout 12 min walk

Museums

  • Yeshiva University MuseumAbout 1 min walk
  • Poster HouseAbout 9 min walk
  • National Museum of MathematicsAbout 12 min walk
  • Museum of Food and DrinkAbout 17 min walk

Walking times are estimates. Schools shown are the nearest public and charter schools and are not zone assignments; a nearby school is not necessarily the one an address is zoned for. Confirm zoning with the NYC Department of Education. Sources: MTA, NYC Parks and NYC Department of City Planning open data.

The Neighborhood

About Flatiron

Historic loft architecture meets modern luxury in one of Manhattan's most vibrant and sought-after neighborhoods.

Walkability

10/10

Public transit

10/10

Schools

7/10

Dining

10/10

Groceries & parks

8/10

Explore Flatiron

Listing Courtesy of Nest Seekers LLC

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RLS: Real Estate Board of New York Residential Listing Service

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.