Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
443 12TH Street #4B
Interested in this property?
Active For Sale Co-op

$1,600,000

$1,231 per sq ft

443 12TH Street #4B

Park Slope, Brooklyn

Ansonia Warehouse

MLS® #RLS20095441

RLS at REBNY

Listing by Corcoran Group

2

Bedrooms

1

Bath

1,300

Sq. Ft.

1960

Year Built

Quick Summary

Bedrooms 2
Bathrooms 1
Living Area 1,300 sq ft
Year Built 1960
Ownership Co-op
Maintenance $1,753/mo
Neighborhood Park Slope
Floor 4 of 5

Property Highlights

  • Views: City, River

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 5
Baths 1 Full
Floor 4 of 5
View City, River
Pets Yes
Year Built 1960
Living Area 1,300 sq ft
Structure Type HighRise
Basement Other
Parcel # 01096-0050-00443-000-000004B
Block/Lot 01096/0050

Listing History

Event Date Price Change
Listed Jun 3, 2026 $1,600,000 -
Currently Jun 3, 2026 $1,600,000 -

Description

If you're looking for the dream Brooklyn Loft, you may have found it.

Perched above the surrounding brownstones within the historic Ansonia Storage Warehouse, Apartment 4B combines the authenticity of a true Brooklyn loft with open views that stretch across Park Slope rooftops toward New York Harbor and the Statue of Liberty beyond. This is the first true two bedroom apartment to hit the market in the building in 14 years, and the first coveted B-line on record.

This expansive, corner two-bedroom home is rich with original character. Exposed brick walls, soaring 11' ceilings, oversized warehouse windows, concrete beams, original pine floors, and original industrial columns create a sense of scale and authenticity that simply cannot be recreated today. If the warehouse was converted today, a developer would likely have created a three bedroom with this amount of space!

The heart of the home is a sprawling living/dining room that takes full advantage of the scale and scope of the industrial footprint. Framed by oversized arched windows and a dramatic exposed brick wall, the space effortlessly accommodates both living and dining while maintaining the open, airy feel that loft buyers dream of finding.

The chef's kitchen has been thoughtfully integrated into the entertaining space and features custom cabinetry, stone countertops, premium appliances (Sub-zero, JennAir), abundant storage (even room for your cookbooks!), and a generous island that naturally becomes the gathering place for family and friends.

Privately tucked away from the living areas, the primary bedroom offers exceptional built-in storage and sweeping western views of brownstone Brooklyn- all the way to the Statue of Liberty.

The second bedroom enjoys open western views and easily functions as a guest room, home office, library, or a creative's dream home studio. Currently outfitted with fabulous wood desks that hide away clutter while keeping an active workspace, the room is large enough to fit any requirement.

The bathroom is clad in warm stone finishes and has a luxurious steam shower installed, as well as a top-of-the-line Toto Washlet. Located across from the bedrooms, it is also conveniently located for guest use.

A dedicated laundry room with new Miele W/D, custom built-ins, and remarkable storage throughout provide a level of practicality rarely associated with loft living.

Originally constructed as one of Brooklyn's great warehouse buildings, the Ansonia Storage Warehouse remains among Park Slope's most sought-after loft cooperatives. Just moments from Prospect Park, the neighborhood's acclaimed restaurants and cafés, and multiple transportation options, Residence 4B offers the rare opportunity to enjoy authentic loft living without compromise.

Character, scale, light, and views-this is the Brooklyn loft buyers spend years waiting for, so don't miss out!

Features & Amenities

Interior Features

High Ceilings Building None Washer Hookup

Exterior Features

None

Building Amenities

Elevators

Building Information

Financial Details

Maintenance $1,753/mo

Park Slope is a well-known Brooklyn neighborhood, recognized for its tree-lined streets and preserved brownstones. Bordering the western edge of Prospect Park, the neighborhood offers convenient access to green space. The real estate market features a mix of historic townhouses, cooperatives, and modern condominiums, within walking distance of the park.

Park Slope Live Market Data

View Neighborhood

Active Listings

123

Median Asking Price

$1.82M

Median $/Sqft

$1,400

Avg Days on Market

N/A

New This Week

18

Price Reduced

20%

Sold (30 Days)

17

Median Sale Price

$2.26M

Live data from RLS at REBNY • Updated 6/3/26, 5:37 PM EST

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Location

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443 12TH Street #4B, Park Slope, Kings County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1909
Year Built
117 years old
5
Floors
36
Residential Units
R6B
Zoning District
Elevator Apartments Historic District: Park Slope Historic District Extension

Tax & Assessment

Assessed Value: $2,515,500
Land Value: $198,450
Exemptions: $25,190

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

Lot Area: 8,500 SF
Building Area: 42,500 SF
Built FAR: 5
Allowed FAR: 2

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 $1,753 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 2 bedrooms and 1 full bathroom.

The listed interior living area is 1,300 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1960, making it approximately 66 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.

At the current list price of $1,600,000 for 1,300 sq ft, the asking price per square foot is approximately $1,231. This figure is for reference only and may differ from appraised or assessed values.

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: RLS20095441
First Listed: 6/3/2026
On Market: 6/3/2026
Price Changed: 6/3/2026
Contract Date: 6/3/2026

Listing Courtesy of Corcoran Group - Philip Wells

Listing Contact: (917) 993-4137

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 6/3/2026 at 9:37 PM UTC

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