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443 12th Street #1B, 
Brooklyn, NY 11215

$2,150,000


3

Beds


2

Baths


1,915

Sq Ft


Co-op

Active

Listed by

Jessica L Buchman

Bryan Rettaliata

Corcoran Group

Last updated:

May 17, 2026, 03:53 AM

MLS#

RLS20086151

Source:

NY REBNY

About This Home

443 12th Street #1B

Loft 1B The Ansonia Clock Factory 443 12th Street

Set within the historic Ansonia Clock Factory,a distinguished early 20th-century Park Slope warehouse thoughtfully converted into cooperative residences, Loft 1B is a striking street-level duplex, meticulously redesigned in 2014 by architect Philippe Baumann. The renovation masterfully balances the building's industrial heritage with the clean, contemporary clarity for which Baumann Architecture is known.

Spanning approximately 1,915 square feet across two expansive levels, the residence is defined by its remarkable volume and structural character. A flood of natural light, soaring near triple-height ceilings, exposed brick, and original beam construction create a dramatic interplay between open living areas andA thoughtfully articulated private spaces.

Baumann's redesign emphasizes material continuity throughout, with hardwood flooring, steel and wood detailing, and extensive custom storage enhancing both functionality and aesthetic cohesion. Two distinct mezzanine levels further elevate the sense of verticality while offering flexibility for a variety of uses, whether as sleeping quarters, creative studios, or workspaces.

The upper level showcases preserved original structural elements, framing a generous eat-in kitchen and dining area unified within one expansive space, stylishly renovated with granite countertops and custom cabinetry, and anchored by soaring columns that lend a striking architectural presence.

In a chorus of elevated "floating" interventions, two mezzanine chambers and a full bathroom overlook the main living space. A distinctive system of accordion panels allows for adaptable privacy, elegantly modulating light and sound. Integrated LED lighting throughout enhances both ambiance and functionality.

A sculptural steel staircase serves as both centerpiece and connector, linking the upper volumes to a light-filled lower level designed for everyday living. This level offers generous space for lounging, working, and quiet retreat, all beneath impressive ceiling heights (24 feet height) and an abundance of natural light.

The primary suite completes the lower level, with integrated large closets, and featuring a glass-tiled en-suite shower room and a full-sized laundry room, set against modern concrete floors that echo the loft's industrial roots.

Accessible via elevator, the building's well-maintained communal rooftop offers sweeping views of Manhattan, including a direct sightline to the Statue of Liberty. It is an ideal setting for al fresco dining, sunset gatherings, and Fourth of July fireworks.

Located just minutes from Prospect Park, 443 12th Street retains the authentic character of its industrial past, with oversized windows, substantial proportions, and a true loft sensibility. Residents enjoy a professionally managed, pet-friendly cooperative with elevator access and a beautifully maintained shared rooftop, an exceptional extension of the home.

Home Facts

Co-op

2 Baths

3 Bedrooms

Built in 1960

Price Summary

2,150,000

$1,122 per Sq. Ft.

MLS #:

RLS20086151

Last Updated:

May 17, 2026, 03:53 AM

Added:

25 day(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

3

Bathrooms

Total Bathrooms:

2

Full Bathrooms:

2

Interior

Living Area:

1,915 Sq. Ft.


Structure

Structure

Building Area:

1,915 Sq. Ft.

Year Built:

1960


Finances & Disclosures

Finances

Price:

$2,150,000

Price per Sq. Ft:

$1,122 per Sq. Ft.

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This 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. RLS Data display by Coldwell Banker Warburg This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
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443 12th Street #1B
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Sun, May 17
01:30 PM02:30 PM

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.