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50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
50 Madison Avenue
Last updated on Sep 18, 2026

50 Madison Avenue

Doorman Condo located in Flatiron/Union Square, between East 26th Street & East 27th Street

In 1896, the five-story headquarters of the American Society for the Prevention of Cruelty to Animals opened at 50 Madison Avenue, designed by Renwick, Aspinwall & Owen. In 2005, the building was remodeled into an 11-story luxury condominium building, preserving the lower three floors and adding eight new floors clad in limestone-colored precast panels. Currently, 1 apartment is for sale.

50 Madison Avenue Location Map

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Overview of 50 Madison Avenue

50 Madison Avenue began as the 1896 headquarters of the American Society for the Prevention of Cruelty to Animals, overlooking Madison Square Park from the northwest corner of 26th Street. The original limestone structure was designed by Renwick, Aspinwall & Owen, whose work was praised for its finely carved detailing and elaborate cornice.

The building was converted to a condominium in 2005 by Samson Management, with Platt Byard Dovell White preserving the lower historic floors and adding eight limestone colored floors above them. It is now an 11 story condominium with nine residences, including a duplex penthouse, in the Flatiron and Union Square area.

Residences are organized primarily as full floor homes, with multiple apartments configured as three bedroom, three and a half bath layouts. Park facing homes have expansive southern exposures, floor to ceiling windows, and views over Madison Square Park toward the Flatiron Building and the MetLife Clocktower; recurring apartment features include high ceilings, open living and dining areas, private laundry rooms, and central air conditioning.

The building has a full time doorman, attended lobby, resident storage, outdoor entertainment space, terraces or balconies, and in unit washer and dryer facilities. Pets are allowed. Madison Square Park is directly across the avenue, with Eleven Madison Park, Scarpetta, Eataly, and The Clocktower among the nearby restaurants and destinations.

Doorman
Full Time
Type
Condo
Year Built
1896
Converted: 2005
Apartments
Floors
11
Pets: Allowed
Neighborhood
Min Down
20%

Amenities

  • FT Doorman
  • Resident Storage
  • Central AC
  • Elevator
  • Outdoor Entertainment Space
  • In-Unit Washer/Dryer
  • Terraces / Balconies
50 Madison Avenue building photo 1
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50 Madison Avenue building photo 1
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50 Madison Avenue building photo 11
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  1. 6
at Park Ave 0.12 miles
  1. N
  2. R
at Broadway 0.19 miles
  1. M
  2. F
at 6th Ave 0.32 miles
  1. 1
at 7th Ave 0.46 miles
  1. B
  2. D
  3. Q
at 6th Ave 0.46 miles

Pros & Cons

  • Overlooks Madison Square Park
  • Doorman
  • Individual storage units
  • Permits pets
  • Large layouts
  • Convenient to many restaurants
  • Good public transportation
  • Convenient to Flatiron and Chelsea districts
  • Elegant entrance
  • Full floor residences
  • Close to Subway
  • No sidewalk landscaping
  • No garage
  • No roof deck
  • No balconies

CityRealty Rating

20
/44
Architecture
+
27
/36
Location
+
17
/39
Features
+
9
Editor’s Points
=
73
CITYREALTY
RATING
  • How is the CityRealty Rating calculated?

    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

Sales Summary

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Sales History by Apartment Size

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Pricing Comparison of Similar Buildings

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