Milton Coste

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(917) 416-7433

Under Contract – Backup offers may be accepted

420 12TH Street #N3R
Pending For Sale Co-op

$1,900,000

$1,583 per sq ft

420 12TH Street #N3R

Park Slope, Brooklyn

Ansonia Court

MLS® #RLS20046611

RLS at REBNY

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
Previous Price $1,950,000

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

71

Median Asking Price

$1.85M

Median $/Sqft

$1,359

Avg Days on Market

N/A

New This Week

10

Price Reduced

17%

Sold (30 Days)

22

Median Sale Price

$1.73M

Live data from RLS at REBNY • Updated 2/21/26, 12:53 PM EST

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Location

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

MLS® ID: RLS20046611
First Listed: 9/6/2025
On Market: 9/6/2025
Price Changed: 2/2/2026
Pending Since: 11/4/2025
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.

Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 2/21/2026 at 5:53 PM UTC

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