420 12TH Street #L3L
MLS® #RLS10057241
Listing by The Corcoran Group
3
Bedrooms
1.5
Bath
N/A
Sq. Ft.
1881
Year Built
Quick Summary
Property Highlights
- Exposure: East,West facing
- Outdoor Space: Rooftop
- Style: Prewar architecture
Property Details
Description
420 12TH STREET L3L Located on 12th Street in the heart of the South Slope lies the Ansonia court, originally a turn of the century clock factory and now a spectacular loft building with cult status! This pet friendly co op is the anchor of the South Slope built in a European style with a interior lush courtyard complete with Cherry trees, a serene water feature and perennial plantings. This oversized 3 bedroom, 1.5 bath duplex with private roof deck and garden is laid out graciously with living, dining, kitchen and powder room on the lower level and three bedrooms, full bathroom and full sized washer|dryer on the upper level. The new open kitchen with white milwork and luxurious Carerra marble opens onto the sunny dining area complete oversized factory windows, exposed brick and original wood beams. This Ansonia property is completely unique with its private roof deck. Enjoy lady liberty views, sunsets, stargazing and al fresco dining on this exclusive space as it's the only one in the building. If you must leave this Ansonia sanctuary; the F, G and R trains are just a few steps away along with world class dining at Fonda, Hugo & Sons, Talde and Camperdown Elm or pick up provisions at Union Market and prepare dinner at home! You may never cross 9th Street again.
Features & Amenities
Interior Features
Exterior Features
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
90
Median Asking Price
$1.72M
Median $/Sqft
$1,422
Avg Days on Market
N/A
New This Week
7
Price Reduced
16%
Sold (30 Days)
21
Median Sale Price
$1.67M
Live data from RLS at REBNY • Updated 4/7/26, 4:58 PM EST
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Location
420 12TH Street #L3L, Park Slope, Kings County • Near 12th Street & 7th Avenue
Floor Plans
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
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Listing Courtesy of The Corcoran Group - Jessica Buchman
Listing Contact: (917) 579-8641
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RLS Data display by Keller Williams NYC. Data last updated on 4/7/2026 at 8:58 PM UTC