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2251 Knapp Street
Last updated on Apr 3, 2026

2251 Knapp Street

Currently, 1 apartment is for sale.

2251 Knapp Street Location Map
Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
Days on Market
Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
Sold on
Show More Closed Sales

Overview of 2251 Knapp Street

Located in the heart of Marine Park, Brooklyn, 2251 Knapp Street is a well-maintained cooperative building offering a range of apartment layouts, including one-bedroom and two-bedroom units. The building features several amenities such as a live-in super, card-operated laundry room, storage room, and a garage with a waitlist. Residents benefit from a maintenance fee that includes all utilities, providing a cost-effective living solution. The building's location is highly convenient, with easy access to shopping, dining, and public transportation. It is also just a short distance from recreational areas like Marine Park and the Marine Park Salt Marsh Nature Trail, making it an ideal spot for those who enjoy outdoor activities. The cooperative does not permit pets or subletting, which is an important consideration for potential buyers. Apartments in the building are known for their natural light, spacious layouts, and features such as hardwood floors and windowed eat-in kitchens. Some units may require renovation, offering opportunities for customization. The cooperative requires a 20% down payment, and there is a flip tax of $900 per share. Overall, 2251 Knapp Street presents a solid opportunity for those looking to invest in a cooperative in one of Brooklyn's sought-after neighborhoods.
Doorman
None
Type
Co-op
Year Built
1953
Apartments
Floors
6
Neighborhood
Min Down
20%

Amenities

  • Post War
  • Elevator
  • Laundry Room
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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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Alternate Addresses

  • 22-51 Knapp Street
  • 2250 Plumb 1 Street
  • 2251 Knapp Street
  • 2270 Plumb 1 Street
  • 2270 Plumb 1 Street
  • 2271 Knapp Street
One United Nations Park
between East 39th Street & East 40th Street
Murray Hill
One United Nations Park is an unprecedented interplay of privacy and light—a balance that reflects the architecture’s bold exterior and luminous interiors.
Learn More
One United Nations Park - Exterior View - Building One United Nations Park - Exterior/Interior View - Terrace and Living Room One United Nations Park - Interior - Corner View - Living Room One United Nations Park - Interior - Living Room - View of ESB One United Nations Park - Interior View - Colorful Living Room