Closed For Sale • Co-op

$1,499,000

420 12TH Street #A3L

Park Slope, Brooklyn

Ansonia Court

MLS® #RLS10622804

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 3 of 4

Property Highlights

• Exposure: North,South facing
• Style: Prewar architecture
• Climate Control: Wall Units

Property Details

Type Co-op

Ownership Stock Cooperative

Total Rooms 7

Baths 2 Full

Floor 3 of 4

Exposure North,South

Cooling Wall Units

Pets Yes

Cross Street 12th Street & 7th Avenue

Year Built 1881

Architectural Style Prewar

Parcel # 01098-0001-00420-000-0000A3L

Description

420 12th Street, A3L 420 12th Street, A3L Undeniably authentic at the Ansonia Court cooperative! This renovated three bedroom (formerly a 2 bedroom), 2 full bath duplex with its original beamed wood ceilings and warm exposed brick will certainly charm the loft lover in you. This unique home features north and south exposures, oversized factory windows which flood every room with warmth with its tree-house vistas of the European style courtyard below. The efficient kitchen complete with Sub-Zero and DCS appliances and the two renovated spa like bathrooms complete this loft love story. Other creature comforts include wall-through air conditioning, sleek European Runtal radiators throughout, hardwood oak flooring and amazing storage solutions throughout! The pet friendly Ansonia Court is one of Park Slope?s most sought after loft buildings located in the heart of the South Slope. The inviting courtyard with its fountain is a dreamy and wonderful respite. Stroll one block to Prospect Park, all transportation, great pubs & dining and our favorite Union Market for your provisions!

Features & Amenities

Interior Features

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

Original Price $1,599,000

Sale Price $1,400,000

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

94

Median Asking Price

$1.75M

Median $/Sqft

$1,458

Avg Days on Market

N/A

New This Week

8

Price Reduced

12%

Sold (30 Days)

22

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 4/1/26, 9:00 PM EST

Similar Listings in Park Slope

View All

Active

$2,150,000

13

225 14th Street #GARDEN A

3 bed 3 bath 1,461 sqft

Condo • RLS #RLS20072241

Active

$2,250,000

12

13 JACKSON Place

3 bed 2 bath 1,280 sqft

Single Family Residence • RLS #RLS20079160

Active

$959,000

30

398 13th Street #4B

2 bed 1 bath

Co-op • RLS #RLS20080833

Active

$1,695,000

17

680 Carroll Street #4

2 bed 2 bath

Co-op • RLS #RLS20079605

Active

$1,595,000

11

846 PRESIDENT Street #2

2 bed 1 bath

Co-op • RLS #RLS20077118

Active

$1,150,000

30

415 9th Street #53

3 bed 2 bath 717 sqft

Co-op • RLS #RLS20080820

Location

Loading map...

420 12TH Street #A3L, Park Slope, Kings County • Near 12th Street & 7th Avenue

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: RLS10622804

First Listed: 3/3/2020

Closed: 10/28/2020

Contract Date: 3/5/2020

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 Data display by Keller Williams NYC. Data last updated on 4/2/2026 at 1:00 AM UTC