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925 Union Street
Last updated on Feb 8, 2026

The Mildred,
925 Union Street

The Mildred is a pre-war co-op building in Brooklyn's Park Slope neighborhood, completed in 1929 with 55 units across 6 stories. Located at 925 Union Street, the building offers amenities such as an intercom and elevator. Currently, 1 apartment is for sale.

925 Union Street Location Map
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Overview of The Mildred at 925 Union Street

The Mildred is a prewar co-op at 925 Union Street in Park Slope, completed in 1929. The six story, 55 unit building sits between Eighth Avenue and Grand Army Plaza Oval, just half a block from Prospect Park's main entrance. The elevator building features a grand lobby, live-in superintendent, video intercom with key fob entry, and a laundry room with smartphone functionality. Additional amenities include bike storage and individual storage units available for rent, and the building is pet friendly with FIOS and Spectrum internet options.

Apartments retain classic prewar details including high ceilings, parquet and hardwood floors, and large windows that provide strong natural light. Units range from one to two bedrooms, with many featuring renovated kitchens equipped with stainless steel appliances, granite counters, and breakfast bars. Bathrooms in updated units often include spa-like finishes with hexagon tile floors and subway tile walls. Walk in closets and generous storage space are common throughout the building. One apartment gained recognition in Elle Decor, The New York Times, Time Out NY, and HGTV.com for its design.

The location provides exceptional access to Park Slope's amenities and cultural institutions. The 2/3 and B/Q subway lines are within a few blocks, while the Grand Army Plaza Farmers Market, Brooklyn Museum, Brooklyn Botanic Garden, and Brooklyn Public Library's main branch are all nearby. Seventh Avenue and Fifth Avenue shopping and dining are easily accessible, as are the Park Slope Food Co-op and Union Market. Barclays Center and BAM are also close by.

Doorman
None
Type
Co-op
Year Built
1929
Apartments
Floors
6
Pets: Allowed
Neighborhood
Min Down
20%

Amenities

  • Pre War
  • Resident Storage
  • Intercom
  • Video Intercom
  • Elevator
  • Laundry Room
  • Bike Room
  • Live-In Superintendent
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  1. 2
  2. 3
at Flatbush Ave and Plaza Street East 0.14 miles
  1. B
  2. Q
at Flatbush Ave and Park Pl 0.25 miles

Pros & Cons

  • Half block from Prospect Park main entrance
  • Walk-in closets and generous storage space
  • Near Grand Army Plaza Farmers Market and shopping
  • Prewar building with high ceilings and hardwood floors
  • Live-in superintendent and video intercom system
  • Laundry room with smartphone functionality
  • Multiple subway lines nearby including 2/3 and B/Q trains
  • Pet friendly building policy
  • Bike storage and individual storage units available
  • Grand lobby and elevator building
  • Close to Brooklyn Museum and Brooklyn Botanic Garden
  • Many units feature renovated kitchens with stainless steel appliances
  • Some units may need kitchen and bathroom updating
  • Limited natural light in certain apartments

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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