SOLD FOR $1,835,000
· Closed January 11, 2023
423 Atlantic Avenue #4-M
MLS® #RLS10835305
Listing by Compass
2
Bedrooms
2
Baths
N/A
Sq. Ft.
1925
Year Built
Quick Summary
Property Highlights
- Views: City
- Style: Prewar architecture
- Climate Control: Wall Units
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Jul 5, 2022 | $1,835,000 | - |
| Price Reduced | Jan 11, 2023 | $1,850,000 | +0.8% |
Description
Set in the heart of Boerum Hill in the coveted Ex-Lax building, one of the only industrial loft conversions in the area, this sprawling, pin-drop-quiet architect-designed corner property is what you've been waiting for. To start, this expansive home boasts a 600 square-foot open plan living space with over-sized windows and a kitchen featuring abundant storage, stainless-steel appliances, stone countertops, and a custom crafted steel breakfast bar perfect for quick meals or gazing into the treetops. There's so much to love here especially the dramatic floor-to-ceiling library, which makes full use of the loft's 14-foot ceiling height with a steel-construction mezzanine and custom shelves that span nearly 30 feet. Currently configured with two extra-large bedrooms, the unit could easily be converted to a spacious three bedroom. As is, the primary bedroom has an ensuite bathroom and dressing room and can be set off by a custom-designed glass sliding door for maximum privacy. The second bedroom is gigantic with a walk-in closet of its own. Additionally, the mezzanine level includes desk area and a separate space usable as a sleeping area or home office. The apartment has a full-size washer and dryer and a walk-in storage closet great for bicycles, luggage, and everything else that needs a place. This well-established cooperative converted in 1981 has a gorgeous landscaped common roof deck with skyline views of Brooklyn and Manhattan. The Ex-Lax building also has a resident superintendent, video security, virtual doorman and a central laundry room. It is in close proximity to almost every subway line, including the 2, 3, 4, 5, A, B, C, D, G, N, Q, R, as well as to the Long Island Railroad. Showings by appointment only.
Features & Amenities
Interior Features
Exterior Features
Appliances
Building Information
Financial Details
About Boerum Hill
View All Boerum Hill ListingsBoerum Hill is a historic residential neighborhood with tree-lined streets and retail along Atlantic Avenue and Smith Street. Housing stock features three-story row houses and newer high-end condominium developments, with F/G subway service at Bergen Street.
Boerum Hill Live Market Data
View NeighborhoodActive Listings
39
Median Asking Price
$2.50M
Median $/Sqft
$1,340
Avg Days on Market
N/A
New This Week
6
Price Reduced
18%
Sold (30 Days)
5
Median Sale Price
$1.43M
Live data from RLS at REBNY • Updated 6/6/26, 11:54 PM EST
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Location
423 Atlantic Avenue #4-M, Boerum Hill, Kings County • Near Bond Street/Nevins Street
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)
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Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed monthly maintenance are $2,583 per month. Confirm the exact amount with the listing broker before making an offer.
This property has 2 bedrooms and 2 full bathrooms.
According to MLS records, the building was constructed in 1925, making it approximately 101 years old.
This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or [email protected]. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of Compass - Jodie Garay
Listing Contact: (646) 675-0937
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 6/7/2026 at 3:54 AM UTC