420 12TH Street #P3R
MLS® #RLS10088563
Listing by Brown Harris Stevens Residential Sales LLC
1
Bedroom
1
Bath
920
Sq. Ft.
1881
Year Built
Quick Summary
Property Highlights
- Exposure: East,South facing
- Style: Prewar architecture
- Character: Pre-war building (1881)
Property Details
Description
Beautifully renovated, this classic loft duplex offers gorgeous prewar details in the heart of Park Slope. Housed in the former Ansonia Clock Factory built in 1882, this stunning co-op features soaring 12 ft ceilings, original beams, industrial hardware and exposed brick as well as new custom hardwood floors, resurfaced and painted walls, and a dramatic 16 ft. custom bookcase that links the upper and lower levels. This apartment is absolutely flooded with sunshine through south-facing oversized windows.
The main floor offers a stunning open loft space, custom fixtures and plenty of room for living and dining. The galley kitchen was recently upgraded with new appliances. The upper level has a large foyer with a double closets and French doors leading to the large bedroom. One full bath and large mechanicals closet with your own full sized washer and dryer complete the upper level. This apartment is one of the lucky few in the complex to offer both a private terrace as well as exclusive roof rights.
The Ansonia Court co-ops overlook the beautifully landscaped common courtyard with mature trees, perennials and a soothing fountain. The building is PET FRIENDLY, with a live-in super and attentive staff. The location is perfect- just a block and a half to Prospect Park, close to weekly farmers markets, Armory recreation center, restaurants and shopping.
Building Information
Financial Details
About Park Slope
View All Park Slope ListingsPark 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 NeighborhoodActive Listings
99
Median Asking Price
$1.75M
Median $/Sqft
$1,398
Avg Days on Market
N/A
New This Week
20
Price Reduced
14%
Sold (30 Days)
17
Median Sale Price
$1.65M
Live data from RLS at REBNY • Updated 4/11/26, 4:57 PM EST
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Location
420 12TH Street #P3R, Park Slope, Kings County
Floor Plans
Listing Data
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Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
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Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Andrew B Vandusen
Listing Contact: (718) 938-5172
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.
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RLS Data display by Keller Williams NYC. Data last updated on 4/11/2026 at 8:57 PM UTC