Closed For Sale • Co-op

$1,900,000

$1,583 per sq ft

420 12TH Street #N3R

Park Slope, Brooklyn

Ansonia Court

MLS® #RLS20046611

Listing by Corcoran Group

2

Bedrooms

2.5

Baths

1,200

Sq. Ft.

1881

Year Built

Quick Summary

Bedrooms 2

Bathrooms 2 full, 1 half

Living Area 1,200 sq ft

Year Built 1881

Ownership Co-op

Maintenance $1,829/mo

Neighborhood Park Slope

Floor 3 of 4

Property Highlights

• Views: Other
• Exposure: North,South facing
• Style: WalkUp architecture

Property Details

Type Co-op

Ownership Stock Cooperative

Total Rooms 6

Baths 1 Full, 1 Half

Floor 3 of 4

View Other

Exposure North,South

Pets Yes

Year Built 1881

Living Area 1,200 sq ft

Architectural Style WalkUp

Basement Other

Parcel # 01098-0001-00420-000-0000N3R

Block/Lot 01098/0001

Description

The Ansonia Court, 420 12th Street, N3R and Parking on the Block!

Brick and Beam Authentic 2 Bedroom Convertible 3 Bedroom Duplex

Located on 12th Street in the heart of the South Slope lies the Ansonia court, originally a turn of the century brick and timber 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 2 bedroom (convertible 3), 1.5 bath duplex is laid out graciously with living, dining, kitchen and powder room on the lower level and two large bedrooms, full bathroom and full sized washer dryer on the upper level. The open kitchen with shaker style mil-work and stunning black absolute marble opens onto the sunny dining area complete over sized factory windows, exposed brick and original wood beams.

If you must leave this Ansonia sanctuary; the F, G and R trains are nearby, along with world class dining at these neighborhood favs: Winner Bakery, Fonda, Ottava and Pasta Louise or pick up provisions at Union Market and prepare dinner at home! You may never cross 9th Street again.

Features & Amenities

Interior Features

Separate Formal Dining Room Building Other Washer Hookup In Unit

Exterior Features

Building Courtyard Private Outdoor Space Under60 Sqft

Building Information

Building Ansonia Court

Total Units 70

Stories 4

Style WalkUp

Financial Details

Maintenance $1,829/mo

Original Price $2,075,000

Sale Price $1,900,000

Previous Price $1,950,000

About Park Slope

View All Park Slope Listings

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

80

Median Asking Price

$1.75M

Median $/Sqft

$1,441

Avg Days on Market

N/A

New This Week

11

Price Reduced

13%

Sold (30 Days)

22

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 3/23/26, 9:33 AM EST

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Location

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420 12TH Street #N3R, Park Slope, Kings County

NYC Zoning • Google Maps • Street View

Floor Plans

Data Sources & Methodology

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.

All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.

MLS® ID: RLS20046611

First Listed: 9/6/2025

On Market: 9/6/2025

Price Changed: 2/2/2026

Closed: 2/2/2026

Contract Date: 9/6/2025

Listing Courtesy of Corcoran Group - Jessica L Buchman

Listing Contact: (917) 579-8641

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 3/23/2026 at 1:33 PM UTC