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860 Union Street, 
Brooklyn, NY 11215

$3,750,000


6

Beds


6

Baths


3,894

Sq Ft


Multi-Family

Active

Listed by

Billy Apter

Vito Angelo

RE/MAX Real Estate Professiona

1480123

718-532-2000

Last updated:

May 26, 2026, 11:16 AM

MLS#

492575

Source:

BROOKLYN

About This Home

860 Union Street

Welcome to your home in the Park Slope neighborhood of Brooklyn, New York City was built as the Victorian Gothic carriage house of the Maxwell mansion, which was built sometime between 1875 and 1896, and was torn down in 1922. The 25’ ft wide carriage house received a new facade in 1923 designed by Caughey & Evans. The building is one of the few carriage houses in Park Slope; and is a local attraction, which dazzles its passersby. It is located in the Park Slope Historic District (minutes from the park). This awe-inspiring magnificent architectural masterpiece is majestically steeped in exquisite original word work & finely crafted detail throughout (mantle fireplaces, built-in China cabinets, parquet floors, stained glass, towering, tall ceilings, and more). Currently configured as a two-family residence with 3 ensuite bedrooms, formal living, formal dining room & kitchen for each unit- or perfectly ideal as a conversion to the ultimately sublime single-family mansion. This stunning and ultra-unique property is a must see to believe and appreciate. Profound possibilities and potential await with this work of art piece of landmarked real estate gold. Situated in the heart of prime Park Slope- surrounded by the most exciting and essential amenities of Brooklyn’s most desirable & sought-after neighborhoods. An absolutely outstanding opportunity to own a once-in-a-lifetime historic home that will be become your legacy. Some Photos are Staged.

Home Facts

Multi-Family

6 Baths

6 Bedrooms

Price Summary

3,750,000

$963 per Sq. Ft.

MLS #:

492575

Last Updated:

May 26, 2026, 11:16 AM

Added:

a year ago


Rooms & Interior

Bedrooms

Total Bedrooms:

6

Bathrooms

Total Bathrooms:

6

Full Bathrooms:

6

Interior

Living Area:

3,894 Sq. Ft.


Structure

Structure

Building Area:

3,894 Sq. Ft.


Lot

Lot Size (Sq. Ft):

2,610


Finances & Disclosures

Finances

Price:

$3,750,000

Price per Sq. Ft:

$963 per Sq. Ft.

Source:BROOKLYN
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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.