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345 Union Avenue
Last updated on Nov 27, 2025

345 Union Avenue

345 Union is a post-war condo building in Brooklyn's Williamsburg finished in 2005. The 5-story building at 345 Union Avenue contains 10 units.

345 Union Avenue Location Map
Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
Sold on
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Overview of 345 Union Avenue

345 Union is a post-war condominium building in Brooklyn's Williamsburg neighborhood finished in 2005. Situated at 345 Union Avenue, between Maujer Street and Grand Street, the building contains 10 units and rises 5 stories.

Doorman
None
Type
Condo
Year Built
2005
Apartments
Floors
5
Neighborhood
Min Down
20%

Amenities

  • Post War
  • Video Intercom
  • Elevator
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  1. G
  2. L
at Union Ave and Metropolitan Ave 0.15 miles
  1. J
  2. M
at Hooper and Broadway 0.28 miles
  1. Z
at Havemeyer and Broadway 0.37 miles

Sales Summary

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Sales History by Apartment Size

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Bergen Brooklyn
between 3rd Avenue & 4th Avenue
Boerum Hill
World-class design, rooted in local charm. Crafted facade by Frida Escobedo | Textured interiors by Workstead. Early 2025 Occupancy.
Learn More