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The Ex-Lax Building,
423 Atlantic Avenue
Co-op located in Boerum Hill, between Bond Street & Nevins Street
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- Apartments For Sale (1)
- Recent Sales (12)
- All Units in Building (60)
Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
Days on Market
1 bed
1 bath
$1,150,000
Oct 2, 2024
81 days
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#4N:
$1,150,000 - 1 bed
Overview of The Ex-Lax Building at 423 Atlantic Avenue
The Ex-Lax Building, originally constructed in 1925 and converted to residential use in 1981, is a well-established cooperative offering a variety of amenities. These include a central laundry room, an on-site superintendent, video security, a virtual doorman, and a beautifully landscaped rooftop terrace with stunning 360-degree panoramic views.
Located at 423 Atlantic Avenue in Brooklyn's Boerum Hill neighborhood, this prewar co-op was completed in 1928. The six-story, 60-unit building sits between Bond Street and Nevins Street and features an elevator and video intercom for added convenience.
Residents enjoy close proximity to shops, diverse restaurants, and cultural landmarks like BAM and the Barclays Center. The building is also ideally located near major subway lines (A/B/C/D/F/G/N/Q/R/2/3/4/5) and the LIRR.
Year Built
1928
Converted:
1981
Apartments
60
Floors
6
Neighborhood
Boerum Hill (Brooklyn)
Min Down
20%
60Apartments
View All Past
Sales & Rentals
in Building
Sales & Rentals
in Building
Amenities
- Pre War
- Rooftop Terrace
- Video Intercom
- Elevator
- Laundry Room
- Live-In Superintendent
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Nearby Subways
- G
- A
- C
- 2
- 3
- 4
- 5
- B
- Q
- R
- D
- N
- F
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)
Sales Summary
View Summary by Apartment SizeSales History by Apartment Size
View Full Closing History
Show:
Pricing Comparison of Similar Buildings
View Detailed ComparisonEditorial Coverage
Alternate Addresses
- 417 Atlantic Avenue
- 419 Atlantic Avenue
- 421 Atlantic Avenue
- 423-443 Atlantic Avenue
- 425 Atlantic Avenue
- 427 Atlantic Avenue
- 429 Atlantic Avenue
- 431 Atlantic Avenue
- 433 Atlantic Avenue
- 435 Atlantic Avenue
- 437 Atlantic Avenue
- 439 Atlantic Avenue
- 441 Atlantic Avenue
- 443 Atlantic Avenue
- Ex-Lax Building
- ExLax Building
- The Exlax
at the southeast corner of Broadway
Financial District
Modern living, classic elegance. A visionary transformation of a downtown art deco masterpiece. 100,000 SF of amenities | Buyer incentives | Move-in ready
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RLS IDX Data display by CityRealty.com, LLC.
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2024 The Real Estate Board of New York, Inc., All rights reserved.
IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.
CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.
CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.
An equal housing opportunity 
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