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521 Park Avenue
Last updated on Jun 8, 2026

521 Park Avenue

521 Park Avenue, designed by William Boring in 1911, is a limestone building honored with international design awards. The 24-unit condominium features amenities like a full-time doorman, fitness center, and private storage, and allows pets, pied-a-terres, and flexible financing. Currently, 1 apartment is for sale.

521 Park Avenue Location Map

All Apartments For Sale

Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
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Unit #
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Sold on
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Overview of 521 Park Avenue

521 Park Avenue was designed by William Boring, an American-born architect who studied architecture at the Ecole des Beaux-Arts before returning to New York and joining the firm of McKim, Mead and White. The limestone building has been honored with numerous international design awards, including a gold medal for architecture from the Exposition Universelle in Paris in 1900.

521 Park Avenue was constructed as a cooperative in 1911, converted to a condominium in 1987, and currently has 24 units. The building has a full-time doorman, a live-in superintendent, a fitness center, and private storage that transfers with each unit. It also benefits from a location near Central Park, world-renowned restaurants, and top shopping. Pets, pied-a-terres, and flexible financing are allowed.

Doorman
Full Time
Type
Condo
Year Built
1911
Converted: 1987
Apartments
Floors
12
Pets: Allowed
Neighborhood
Min Down
20%

Amenities

  • FT Doorman
  • Pre War
  • Elevator
  • Fitness Center
  • Terraces / Balconies
{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.76359, "lng": -73.9689, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

  1. N
  2. Q
  3. R
  4. 4
  5. 5
  6. 6
at Lexington Ave and 60th 0.09 miles
  1. F
at Lexington Ave and 63rd 0.16 miles
  1. M
  2. E
at 5th Ave and 53rd 0.41 miles

Pros & Cons

  • Doorman
  • Handsome building
  • Few apartments
  • Great location
  • Attractive entrance
  • Excellent transportation
  • Close to Subway
  • No garage
  • No health club
  • No sundeck

CityRealty Rating

27
/44
Architecture
+
28
/36
Location
+
21
/39
Features
+
9
Editor’s Points
=
85
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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