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420 12th Street F3LBrooklyn, NY 11215

For Sale

$2,495,000

Smart Buyer Rebate $31,188

Welcome home to this extremely special 3 bedroom 2.5-bath duplex in the coveted Ansonia Court. Historic charm mixed with modern amenities invite you into an urban-chic haven, a calm refuge from the city outside. This home feels more like a townhouse than a co-op with soaring rustic beamed ceilings, exposed industrial brick, and oversized arched windows that flood the home with natural light.

Step into a sprawling living area, an oasis with hardwood floors and towering ceilings. Walk right by the carefully hidden in-unit washer /dryer into an expansive and sun-filled open kitchen/dining room with oversized South-facing windows. Off of the kitchen on the first floor is a powder room with serene spa sensibilities. An extra large walk-in closet is hidden under the wooden staircase for additional storage. Up the stairway awaits your dream primary bedroom, with extra large in-suite bathroom, tiled shower and hand-built cabinetry. Two more generous-sized bedrooms share another full bathroom with a vintage double wall-mount sink. Each room has been thoughtfully redesigned and updated for modern living and comfort. This unit comes with roof rights.

Tucked away through the courtyard is the private entrance to building F. It is surrounded by a lush lawn, a fountain, benches and ideal landscaping that all provide a peaceful retreat and common area for all residents to use.

The Ansonia is a well-maintained pet-friendly building with a full-time super, package room. Located just two blocks from Prospect Park and just a few blocks to the 7th Ave F and G train. Neighborhood favorites include Winner bakery, Brook Vin, Cafe Azul, Fonda, Bacaccia, Pasta Louise, Union Market, and local retail shops like Sterling. Located in District 15.

The Ansonia Clock Factory, originally constructed in 1881 closed its doors in the late 1920's.The site was converted in 1982 into "Ansonia Court," a residential co-op, preserving its industrial architecture.




Listed by Louise Simon

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Corcoran Group

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(917) 609-5494

Listed by Fumiko Akiyama

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Corcoran Group

Last updated March 31, 2026

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Source: REBNY #RLS20079051

RLS Data display by Prevu Real Estate LLC

Listing Facts

  • TypeCo-op
  • NeighborhoodSouth Slope
  • Bedrooms3
  • Bathrooms2.5
  • Days on Prevu11
  • HOA/Maint. Fees$2,370/month
  • Size1,800 sqft
  • Price per sqft$1,386

Amenities

  • Private Outdoor Space
  • Pets Allowed

Location

Mortgage Calculator

Listing History

03/24/2026
Listed by Corcoran Group
$2,495,000

Estimated Closing Costs

Total
$40,687
Attorney Fees
$4,000
NYC Mansion Tax
$31,187
Bank Attorney
$1,500
Other Closing Costs
$4,000

Estimated closing costs are based on the list price of $2,495,000 and a 20% downpayment. These estimates are for indicative purposes only. Actual closing costs may vary for each transaction. See the Closing Costs Calculator for calculations specific to your situation.

Property Details for 420 12th Street F3L

Association

Amenities

  • Pets Allowed: Building Yes, Yes

Fees

  • Association Fee: $2,370.00 Monthly

Financial

  • Flip Tax: 1.5%
  • Flip Tax Remarks: N/A

Exterior

Construction

  • Number Of Units Total: 70
  • Stories Total: 4
  • Year Built: 1881
  • Building Name: Ansonia Court
  • Entry Level: 3

Interior

Measurements

  • Living Area: 1,800
  • Living Area Units: SquareFeet

Rooms

  • Bathrooms Full: 2
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 3
  • Rooms Total: 6

Other

Location

  • City Region: Brooklyn
  • Subdivision Name: Park Slope
  • Tax Block: 01098
  • Tax Lot: 0001

Utilities

Equipment

  • Laundry Features: Washer Hookup, In Unit

Frequently Asked Questions

How many bedrooms and bathrooms does this co-op have?

There are 3 bedrooms and 2.5 bathrooms in this co-op at 420 12th Street F3L.

Are pets allowed at 420 12th Street?

Yes, 420 12th Street allows pets.

How does 420 12th Street F3L compare to other co-ops in South Slope?

This co-op is listed 104% above the average price for co-ops in South Slope and has been on the market for 65 less days than the typical home in this area.

What building or home owners association is the co-op part of?

This co-op is in the Ansonia Court building.

What is the square footage on this co-op?

According to the MLS, this listing is 1,800 sqft.

420 12th Street F3L is a 3-bedroom, 2.5-bath co-op for sale in Brooklyn NY 11215. On Prevu for 11 days at $2,495,000. This property features 1,800 square feet of living space, located in South Slope. The median listing price for co-ops in this area is $1,556,500. Additional amenities include private outdoor space and pets allowed. View other co-op listings in Brooklyn.

RLS Data display by Prevu Real Estate LLC The Registrant acknowledges each other RLS Broker's ownership of, and the validity of their respective copyright in, the Exclusive Listings that are transmitted over the RLS. The information is being provided by RLS at REBNY Listing Service, Inc. Information deemed reliable but not guaranteed. Information is provided for consumers' personal, non-commercial use, and may not be used for any purpose other than the identification of potential properties for purchase. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. 2026 RLS at REBNY Listing Service, Inc. All rights reserved. Based on information from the Real Estate Board of New York and/or other sources. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity. 2026 The Real Estate Board of New York, Inc., All rights reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.