Skip to Content

Altair 20, 15 West 20th Street

Condo located in Flatiron/Union Square, between Fifth Avenue & Sixth Avenue

Description of Altair 20 at 15 West 20th Street

Altair 20 is a boutique condominium in the bones of a Neo-Renaissance store-and-loft building in the Ladies Mile Historic District. A part-time doorman and live-in superintendent are on staff, and amenities include a La Palestra fitness center, storage, and a landscaped roof deck with cabanas and grills. Pets are welcome.

Altair 20 is located at 15 West 20th Street near Eataly, Trader Joe's, Madison Square Park, Union Square Park, and acclaimed restaurants like Eleven Madison Park. It is in the heart of the Flatiron District near NoMad, Chelsea, Union Square, and Gramercy. The N/R/W, F/M, 6, 1, and PATH trains are close by.

All content above are visible to screen reader users, so you may ignore the show more button below.

Building Facts

  • Year Built: 1906
    Converted Year: 2006
    Building Type: Condo
    Neighborhood: Flatiron/Union Square (Manhattan)
    Minimum Down: 20%
  • Total Apartments: 19 19
    Total Floors: 11
    Pets: Allowed
    Total Floorplans:

Building Amenities

  • Pre War
  • Central AC
  • Intercom
  • Rooftop Terrace
  • Elevator
  • Outdoor Entertainment Space
  • In-Unit Washer/Dryer
  • Fireplaces
  • Landmarked
  • Terraces / Balconies

Apartments for Sale at 15 West 20th Street View history of all units

Interested in learning more
about off-market listings at Altair 20?
It's quick and easy.
Interested in
this building?
Book an in-person or virtual tour.
It's quick and easy. Cancel anytime.
Or connect with one of our experts
with any questions

Altair 20: Rating

23
Out of 44

Architecture Rating: 23 / 44

+
25
Out of 36

Location Rating: 25 / 36

+
17
Out of 39

Features Rating: 17 / 39

+
8
=
73

CityRealty Rating Reference

 
Architecture
  • 30+ remarkable
  • 20-29 distinguished
  • 11-19 average
  • < 11 below average
 
Location
  • 27+ remarkable
  • 18-26 distinguished
  • 9-17 average
  • < 9 below average
 
Features
  • 22+ remarkable
  • 16-21 distinguished
  • 9-15 average
  • < 9 below average
  • #21 Rated condo - Flatiron/Union Square
 

Carter Horsley's Review of Altair 20

Carter Horsley's Building Review
"This handsome building at 15 West 20th Street between Fifth Avenue and the Avenue of the Americas was erected in 1906 and converted to a residential condominium by Extell Development a century later.

The 11-story has 19 apartments." Read Carter's Full Review
Pros
  • Sidewalk landscaping
  • Good location in Flatiron District
  • Storage
  • Live-in superintendent
  • Permits pets
  • Part-time doorman
  • Roof deck with cabanas and grill
  • Close to Subway
Cons
  • No balconies
  • No swimming pool
  • No concierge
{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.7403553, "lng": -73.9920264, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

Subways

  1. N
  2. R
at Broadway 0.15 miles
  1. M
  2. F
at 6th Ave 0.18 miles
  1. 1
  2. 2
  3. 3
  4. L
at 6th Ave and 16th 0.26 miles
  1. 6
at Park Ave 0.29 miles
  1. Q
  2. 4
  3. 5
at Broadway and 16th 0.33 miles
  1. C
  2. E
at 8th Ave and 25th 0.50 miles
 

Closing History - Last 10 sales

10
Units Sold
$2.7M - $4.8M
Price Range
$1,380
Avg. Price / ft2

Pricing Comparison of Similar Buildings

View Detailed Comparison
One United Nations Park
between East 39th Street & East 40th Street
Murray Hill
One United Nations Park is an unprecedented interplay of privacy and light—a balance that reflects the architecture’s bold exterior and luminous interiors.
Learn More
One United Nations Park - Exterior View - Building One United Nations Park - Exterior/Interior View - Terrace and Living Room One United Nations Park - Interior - Corner View - Living Room One United Nations Park - Interior - Living Room - View of ESB One United Nations Park - Interior View - Colorful Living Room
{"section":"building","group":"A","hood-id":39,"omit-double-building-ads":true,"ads":[{"type":21,"page":101},{"type":18,"page":101}]}
Book a Tour or Get More Information on this Building
Interested in selling? Learn how we can help