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321 West 90th Street
321 West 90th Street
Last updated on Sep 23, 2026

321 West 90th Street

Co-op located in Upper West Side, between West End Avenue & Riverside Drive

Charming 1929 prewar co-op on a tree-lined Upper West Side block near Riverside Park. Features classic details, renovated kitchens, pet-friendly policies, and reasonable maintenance in a vibrant neighborhood.

321 West 90th Street Location Map

All Apartments For Sale

Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
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Overview of 321 West 90th Street

321 West 90th Street is a nine story, 53 unit pre-war building on a tree lined Upper West Side block just off Riverside Drive. Built in 1929, it became a cooperative in 1985, with Riverside Park just beyond the western end of the block.

Apartments commonly have 9 foot beamed ceilings, broad entry foyers, separate windowed kitchens and substantial closet space. Several one bedroom layouts have two or three exposures, with outlooks over the brownstone block and rear gardens. An atypical duplex places its living and dining rooms on the entry level and its bedrooms above.

The building has a live-in superintendent, video intercom and central laundry, along with bicycle and resident storage subject to availability. The co-op permits pets and pied-à-terre ownership.

Doorman
None
Type
Co-op
Year Built
1929
Converted: 1985
Apartments
Floors
9
Neighborhood
Min Down
20%

Amenities

  • Resident Storage
  • Elevator
321 West 90th Street building photo 1
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  1. 1
at Broadway 0.23 miles
  1. 2
  2. 3
at Broadway and 95th 0.27 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)
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Sales Summary

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Sales History by Apartment Size

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Pricing Comparison of Similar Buildings

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