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407 Keap Street
407 Keap Street
407 Keap Street
Last updated on Sep 9, 2026

407 Keap Street

Co-op located in Williamsburg, between South 1st Street & Grand Street

Well-maintained pre-war HDFC cooperative in Williamsburg featuring renovated kitchens, in-unit washers/dryers, and hardwood floors. Income-restricted building with low maintenance fees, pet-friendly policies, and prime access to L and G trains. Currently, 2 apartments are for sale.

407 Keap Street Location Map

All Apartments For Sale

Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
Days on Market
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Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
Sold on
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Overview of 407 Keap Street

407 Keap Street is a six story, 27 unit pre-war HDFC cooperative built in 1910 in Williamsburg. The well maintained brick walk up has a live in superintendent and operates as income restricted affordable housing. Its apartment mix includes conventional two bedroom plans as well as flexible winged layouts that can function as either a large one bedroom or a two bedroom.

Apartments commonly have high ceilings and hardwood floors, with some ceilings reaching 10 feet. Renovated kitchens with stainless steel appliances, windowed bathrooms, and in-unit washers and dryers recur among the homes. The layouts often emphasize privacy and natural light, including back facing and corner orientations, while a private outdoor space is also represented in the apartment mix.

The cooperative has low maintenance, a 5% flip tax, and subletting is possible with board approval and applicable fees. It is a walk up building with Fios readiness and a residential scale that reflects its early Williamsburg construction. The income restriction is administered through local government housing agencies.

The building is close to Williamsburg's shops, cafes, restaurants, and the Williamsburg Bridge. The Lorimer Street station serves the L train, Metropolitan Avenue serves the G train, and Marcy Avenue serves the J, M, and Z trains, placing several subway options within the surrounding neighborhood.

Doorman
None
Type
Co-op
Year Built
1910
Apartments
Floors
6
Neighborhood
Min Down
20%

Amenities

  • Pre War
407 Keap Street building photo 1
407 Keap Street building photo 1
407 Keap Street building photo 2
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  1. G
  2. L
at Union Ave and Metropolitan Ave 0.16 miles
  1. J
  2. M
  3. Z
at Havemeyer and Broadway 0.29 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

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Sales History by Apartment Size

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