Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $2,120,000

Listed at $2,195,000 · Sold 3.4% below asking · Closed August 17, 2021

420 12TH Street #J-4L
Closed For Sale Co-op

$2,195,000

420 12TH Street #J-4L

Park Slope, Brooklyn

Ansonia Court

MLS® #RLS10722272

RLS at REBNY

Listing by The Corcoran Group

3

Bedrooms

2

Baths

N/A

Sq. Ft.

1881

Year Built

Quick Summary

Bedrooms 3
Bathrooms 2
Year Built 1881
Ownership Co-op
Maintenance $1,407/mo
Neighborhood Park Slope
Floor 4 of 4

Property Highlights

  • Views: City
  • Exposure: South,West facing
  • Style: Prewar architecture

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 7
Baths 2 Full
Floor 4 of 4
View City
Exposure South,West
Cooling Wall Units
Pets Yes
Cross Street 12th Street & 7th Avenue
Year Built 1881
Architectural Style Prewar

Description

420 12th Street #J4L & Roof Rights Penthouse perfect at the coveted Ansonia Court. This southwest corner top floor loft is simply dreamy. Through the European lush interior courtyard and above the treetops sits this oversized 2 bedroom + home office/nursery, 2 bathroom open plan loft. The light and views from each of the new 11 oversized factory windows are incredible in this "penthouse perfect" Ansonia loft. Gracious in proportions, this gut renovated loft home has it all. The all-new open windowed custom white marble chef's kitchen complete with farmhouse sink features a wonderful marble slab counter for casual dining and meal preparation. Dreamy pale blue millwork throughout with integrated top-of-the-line appliances. There are no compromises with the open living/dining room with its 4 massive sunny windows across complete with a swing just for fun! This main open space accommodates an extra-large area for formal dining as well as a spacious sitting area too complete with a gas fireplace for s'mores and storytelling. The humongous corner primary suite features 4 giant factory windows and a new ensuite spa bath with a soaking vessel tub and separate stall shower built for two?or more. Other creature comforts include original exposed brick, natural and painted, brand new oak flooring throughout, all new windows throughout, new custom open kitchen and 2 new spa baths, all new mechanicals, new vented full-sized washer dryer, all new in-wall AC with custom barn door covers, all new custom millwork throughout, a new Hearthcabinet fireplace, coveted roof rights available for a board-approved rooftop oasis, ask about the private storage closet too! The turn of the century exposed factory brick and original wood beams and ceilings are just a few of the reasons this building has a cult-like following. There is a 24-hour valet garage with availability on the block. The Ansonia is the anchor of the South Slope sitting one block from Prospect Park and close to all the area's favorite dining, shopping, and transportation. Try the spicy skinny Margs at Cafe Azul, the pastry drop at Michelin bakery Winner on Saturdays, and the artisanal homemade lasagna at Pasta Louise. You may never cross 9th Street again!

Features & Amenities

Interior Features

Den Entrance Foyer Building Washer Dryer Install Allowed Common On Floor Common Area

Exterior Features

Building Courtyard Building Garden

Appliances

Dryer Washer

Building Information

Building Ansonia Court
Total Units 70
Stories 4
Style Prewar

Financial Details

Maintenance $1,407/mo
Sale Price $2,120,000

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

92

Median Asking Price

$1.76M

Median $/Sqft

$1,441

Avg Days on Market

N/A

New This Week

12

Price Reduced

12%

Sold (30 Days)

21

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 3/31/26, 12:25 PM EST

Similar Listings in Park Slope

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Location

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420 12TH Street #J-4L, Park Slope, Kings County • Near 12th Street & 7th Avenue

Floor Plans

Floor Plan
MLS® ID: RLS10722272
First Listed: 5/29/2021
Price Changed: 5/29/2021
Closed: 8/17/2021
Contract Date: 5/29/2021

Listing Courtesy of The Corcoran Group - Jessica 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.

Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 3/31/2026 at 4:25 PM UTC

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