Last updated on May 14, 2026

The Ansonia Clockworks,
438 12th Street

Historic clock factory conversion offering boutique living in South Slope with a European courtyard and part-time doorman. Spacious residences feature river-view terraces, high-end appliances, and prime access to Prospect Park and local dining. Currently, 1 apartment is for sale.

All Apartments For Sale (1) $1,837 Avg. price/ft²
Recent Sales (5) $1,490 Avg. price/ft²
All Units in Building (34)

Include In-Contract Listings (1)

Apt. 6A
Quick view: 7 photos

3 beds

2 baths

1,415 ft²

$1,837

$2,600,000

May 13, 2026

5 days

#6A: $2,600,000 - 3 beds

in contract

#7B: $3,200,000 - 3 beds

#6A: $2,600,000 - 3 beds

Apt. 5B

3 beds

2 baths

1,537 ft²

$2,500,000

$1,627

Oct 9, 2025

Apt. 2A

3 beds

2 baths

1,440 ft²

$1,935,000 -0.8%

$1,344

$1,950,000

Sep 9, 2025

Apt. 2D

3 beds

2 baths

$2,200,000

Nov 13, 2023

Apt. 5C

3 beds

2 baths

1,600 ft²

$2,400,000

$1,500

Nov 9, 2023

Apt. 4C

3 beds

2 baths

1,610 ft²

$2,400,000 -9.4%

$1,491

$2,650,000

Sep 7, 2023

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Overview of The Ansonia Clockworks at 438 12th Street

438 12th Street, known as The Ansonia Clockworks, is a boutique building located in South Slope, Brooklyn. This historic structure, originally a clock factory, has been transformed into a modern residential space while retaining its architectural charm. The building features a doorman available from 8:00 PM to 11:00 PM, a live-in super, and an elevator, ensuring convenience for residents. The beautifully landscaped European-style courtyard adds a serene outdoor space for relaxation and community gatherings. Pets are welcome, making it a suitable home for animal lovers.

The residences at 438 12th Street offer a variety of layouts, with many apartments showcasing expansive interiors and abundant natural light. Notable features include oversized windows, high ceilings, and private outdoor terraces that provide stunning views of the Hudson River, the Statue of Liberty, and the Manhattan skyline. The penthouse units, in particular, boast over 1,200 square feet of outdoor space, ideal for entertaining or enjoying quiet moments outdoors.

Apartments typically include modern kitchens equipped with high-end appliances such as Sub-Zero refrigerators and Miele dishwashers, along with spacious living and dining areas that facilitate both entertaining and everyday living. The primary suites often feature walk-in closets and luxurious en-suite bathrooms, enhancing the comfort and appeal of these homes. The building's prime location places residents just a few blocks from Prospect Park and close to vibrant shopping and dining options along 7th and 8th Avenues, making it a desirable choice for those seeking a blend of urban convenience and residential tranquility.

Doorman

Part Time

Type

Condo

Year Built

1920

Converted: 1999

Apartments

34 (view all units)

Floors

Pets: Allowed

Neighborhood

Park Slope (Brooklyn)

Min Down

20%

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Amenities

PT Doorman
Post War
Elevator

Area Map StreetView

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at 7th Ave and 9th 0.17 miles

Sales History

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Editorial Coverage

Steals & Deals: Charming Newly-Listed Co-ops Under $1.5M Tuesday, May 4, 2021

Alternate Address

Ansonia Clockworks

520 Fifth Avenue

at the northwest corner of West 43rd Street

Midtown West

Iconic river-to-river views include the Empire State Building and Central Park. Elevated condos with magnificent arched windows, triple exposures, and soaring ceilings | Occupancy 2026.

1 beds starting at $0
3 beds starting at $5,950,000

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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. ©2026 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.

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An equal housing opportunity

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The Ansonia Clockworks,438 12th Street

Overview of The Ansonia Clockworks at 438 12th Street

Maps &3D Aerial Views

Amenities

Sales History

Sales Summary

Sales History by Apartment Size

Pricing Comparison of Similar Buildings

Editorial Coverage

Alternate Address

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Market Data

Market Insight

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The Ansonia Clockworks,
438 12th Street

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