Skip to Content
  • Apartments
  • Overview & Photos
  • Maps
  • Ratings & Insider Info
  • Building Specialists
  • Floorplans
  • Sales Data & Comps
  • Similar Buildings
170 West 85th Street
170 West 85th Street
Last updated on Aug 10, 2026

The St Elmo,
170 West 85th Street

Co-op located in Upper West Side, between Columbus Avenue & Amsterdam Avenue

Well-maintained HDFC co-op on the Upper West Side featuring renovated apartments with modern amenities, exposed brick, and in-unit washer/dryers. Pet-friendly building with income restrictions and cash-purchase preference, offering prime access to shopping, dining, and transportation.

170 West 85th Street Location Map

All Apartments For Sale

  • All Apartments For Sale (1)
  • Recent Sales (6) $846 Avg. price/ft2
Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
Days on Market
Thinking of selling? See how your apartment compares and who can sell it best. Start here
Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
Sold on
Thinking of selling? See how your apartment compares and who can sell it best. Start here View Full Sales History

Overview of The St Elmo at 170 West 85th Street

Dating to 1900, The St Elmo is a five story, 24 unit HDFC co-op on the Upper West Side’s Broadway Corridor. Its income restricted ownership structure is central to the building, and cash purchases are strongly preferred.

The apartment stock includes one and two bedroom layouts, ranging from renovated homes to apartments requiring gut renovation. A corner apartment sits three flights up with views toward 85th Street and Amsterdam Avenue, adding an unusual orientation to the building’s otherwise compact pre-war format.

Renovated interiors have included open kitchens, high ceilings, exposed brick, hardwood floors, and in-unit washer dryers. The building is pet friendly, permits washer dryers and dishwashers, and requires apartments to serve as primary residences.

The St Elmo is set among the shopping, dining, parks, and public transportation of the Upper West Side. Its small scale, long-standing construction, and HDFC framework distinguish it from the larger full-service cooperatives common elsewhere in the neighborhood.

Doorman
None
Type
Co-op
Year Built
1900
Apartments
24
Floors
5
Neighborhood
Min Down
20%
The St Elmo building photo 1
{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.78675, "lng": -73.9753, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

  1. 1
at Broadway 0.14 miles
  1. B
  2. C
at Central Park West and 88th 0.34 miles

Sales History

Price/Room (Est)

Why are we displaying the estimated price per room?

For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.

By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.

Price/Ft2 (Est)
View Full Closing History

Sales Summary

Show:
Thinking of selling? See how your apartment compares and who can sell it best. Start here

Sales History by Apartment Size

View Full Closing History
Show:

Pricing Comparison of Similar Buildings

View Detailed Comparison

Editorial Coverage

Alternate Addresses

  • 170 West 85th Street
  • 172 West 85th Street
  • 513 Amsterdam Avenue
  • 515 Amsterdam Avenue
  • 517 Amsterdam Avenue
  • 519 Amsterdam Avenue
1289 Lexington Avenue
at The Northeast corner of East 86th Street
Carnegie Hill
Refined Residences that Redefine life on Lexington Avenue.
Learn More