Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,085,000

· Closed June 25, 2025

Closed For Sale Co-op

$1,085,000

423 ATLANTIC Avenue #4N

Boerum Hill, Brooklyn

423-443 Tenants Corp.

MLS® #RLS11013333

RLS at REBNY

Listing by Serhant

1

Bedroom

1

Bath

N/A

Sq. Ft.

N/A

Year Built

Quick Summary

Bedrooms 1
Bathrooms 1
Year Built N/A
Ownership Co-op
Maintenance $1,768/mo
Neighborhood Boerum Hill
Floor 4

Property Highlights

  • Views: Panoramic
  • Exposure: South facing
  • Climate Control: Other

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 3
Baths 1 Full
Floor 4
View Panoramic
Exposure South
Cooling Other
Pets Yes
Structure Type HighRise
Basement Other
Parcel # 00178-0054-00423-000-000004N
Block/Lot 01824/0016

Listing History

Event Date Price Change
Listed Mar 21, 2025 $1,150,000 -
Currently May 8, 2026 $1,085,000 -5.7%

Description

Welcome to the ultimate loft experience in Brooklyn. This stunning apartment features impressive 12-foot-high ceilings and expansive windows that flood the space with southern sunlight all day while offering incredible views of Brooklyn and the Verrazzano Bridge. Located in Boerum Hill's sought-after, historic former Ex-Lax factory.

This stunning one-bedroom loft with a home office, has been thoughtfully renovated with custom architectural millwork and luxurious finishes throughout. The open-concept loft layout features a spacious living and dining area, a sleek kitchen, a primary bedroom, and an additional interior room that can be used as a sleeping area or a home office. This beautiful home features wide plank walnut flooring, a large walk-in closet in the primary bedroom, and granite countertops in the bathroom.

The living room features a full-height closet, making the most of the loft's impressive ceilings and floor-to-ceiling bookcases. The interior bonus room can be designed as a guest room or home office, or removed to create an expansive open space. The kitchen is outfitted with custom cabinetry, stainless steel appliances, and ample counter space.

The Ex-Lax Building was built in 1925 and converted to residential in 1981. It is a well-established cooperative that offers a range of amenities, such as a central laundry room, an on-site superintendent, video security, a virtual doorman, and a beautifully landscaped rooftop terrace with 360-degree panoramic views.

Nestled in the vibrant Boerum Hill neighborhood, residents enjoy easy access to trendy boutiques, local restaurants, and cultural hotspots like BAM and the Barclays Center. With proximity to major subway lines (A/B/C/D/F/G/N/Q/R/2/3/4/5) and the LIRR, the location offers unparalleled convenience.

Features & Amenities

Interior Features

Building Other

Exterior Features

Private Outdoor Space Under60 Sqft

Building Amenities

Elevators

Appliances

Washer Dryer Allowed

Building Information

Financial Details

Maintenance $1,768/mo
Original Price $1,150,000
Sale Price $1,085,000
Previous Price $1,150,000

Boerum 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 Neighborhood

Active Listings

32

Median Asking Price

$2.05M

Median $/Sqft

$1,380

Avg Days on Market

N/A

New This Week

3

Price Reduced

16%

Sold (30 Days)

9

Median Sale Price

$1.75M

Live data from RLS at REBNY • Updated 5/7/26, 8:43 PM EST

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Location

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423 ATLANTIC Avenue #4N, Boerum Hill, Kings County

Virtual Tour

Building Information

Official NYC property records for this building

1900
Year Built
126 years old
6
Floors
59
Residential Units
R7A
Zoning District
Elevator Apartments

Tax & Assessment

Assessed Value: $10,838,700
Land Value: $760,500
Exemptions: $113,513

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 29,745 SF
Building Area: 101,902 SF
Built FAR: 3.43
Allowed FAR: 4

Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)

Want help estimating ownership costs or understanding building compliance? Let's discuss

Frequently Asked Questions

Common questions about this property

The current listed monthly maintenance are $1,768 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 1 bedroom and 1 full bathroom.

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) 416-7433
MLS® ID: RLS11013333
First Listed: 10/2/2024
On Market: 3/21/2025
Price Changed: 7/18/2025
Closed: 6/25/2025
Contract Date: 10/2/2024

Listing Courtesy of Serhant - Mallory G Bogard

Listing Contact: (405) 317-5687

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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 5/8/2026 at 12:43 AM UTC

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