909 Union StreetLoading

Townhouse For Sale Brooklyn, Park Slope

Web ID # RLS20068978

Listed: 01/27/2026

$4,995,000Loading

7 Beds 5.5 Baths

Mortgage Est: $.../month


Townhouse For Sale Brooklyn, Park Slope

Web ID # RLS20068978

Listed: 01/27/2026


7 Beds 5.5 Baths

Mortgage Est: $.../month

  Listing Courtesy of Corcoran Group

  Jacqueline Torren


Contact Agent

Gea Elika

 212-590-0540

Inquire about 909 Union Street


Mortgage Calculator

$
$
%
%
$/month
$/month
/year

Your mortgage payments over years will add up to .
Estimated monthly payment: $.

Recalculate with more details

Purchase Price

Property Type

Mansion Tax
Title Insurance
Attorney Fee
Move-In Deposit
Title Search
Survey Fees
Board Application Fees
Move-In Fee
Title Search
Recording Fees (Deed)
Lien Search
Credit Check

New Construction Costs

NYC Transfer Tax
NY State Transfer Tax
Sponsor's Attorney Fee
Total
Total
Total
Email Me Closing Costs
Export PDF
Export CSV
  View closing costs
$
$
Property Type
Amount Financed
$
$
$
$
$
$
$
Estimated Closing Costs
$
Post-closing liquidity without 401k
months
Post-closing liquidity with 401k
months
  View more details
$
months
%
%

$
$
%
%
$/month
$/month
/year

Your mortgage payments over years will add up to .

Your rent payments over years will add up to .


Description

An amazing opportunity in a perfect Park Slope location! 909 Union Street is a five-story brick-and-limestone townhouse, currently configured as an owner's lower duplex with three simplex apartments above. Spanning approximately 5,300 square feet, it offers true flexibility: hold as a high-performing four-unit rental, convert to condos, or enjoy the mint owner's duplex with substantial rental income upstairs.

The owner's duplex has been thoughtfully renovated for effortless living. The parlor level delivers a nearly 60-foot great-room experience-an oversized living room and generous dining area, all designed to host beautifully. The chef's kitchen is a standout, featuring Bilotta cabinetry, Viking and Bosch appliances, and a River Granite center island with a prep sink, plus dual wall ovens (standard + convection) and a six-burner cooktop-a true cook's dream. The kitchen opens onto a spacious deck, which flows down to the back garden. A renovated powder room is also found on this level.

Downstairs, the garden level features a large bedroom and media room (currently used as the second bedroom). The primary suite opens directly to the garden. The en-suite bath is spa-like, with radiant heated floors, a double vanity, and a jacuzzi tub. A second full bath offers a marble shower and elegant marble-accented flooring. Carrara marble floors throughout the level are among the most recent upgrades, and the large utility/laundry room provides generous storage.

The three upper floors are configured as three charming two-bedroom residences, each with a washer/dryer and dishwasher, plus classic details like decorative moldings and fireplace mantels. The top-floor living room is crowned by a dramatic original stained-glass window-an unforgettable finishing touch.

Situated in the heart of Park Slope, within the original Park Slope Historic District, this home is moments from Grand Army Plaza, Prospect Park, the Brooklyn Museum, the Brooklyn Botanic Garden, Union Market, and access to the B/Q and 2/3 subway lines.

Highlights

  • Central Air
  • Washer / Dryer

Building Information

  • Building Type: Townhouse
  • Year Built: 1920

Mortgage Calculator

$
$
%
%
$/month
$/month
/year

Your mortgage payments over years will add up to .
Estimated monthly payment: $.

Recalculate with more details

Purchase Price

Property Type

Mansion Tax
Title Insurance
Attorney Fee
Move-In Deposit
Title Search
Survey Fees
Board Application Fees
Move-In Fee
Title Search
Recording Fees (Deed)
Lien Search
Credit Check

New Construction Costs

NYC Transfer Tax
NY State Transfer Tax
Sponsor's Attorney Fee
Total
Total
Total
Email Me Closing Costs
Export PDF
Export CSV
  View closing costs
$
$
Property Type
Amount Financed
$
$
$
$
$
$
$
Estimated Closing Costs
$
Post-closing liquidity without 401k
months
Post-closing liquidity with 401k
months
  View more details
$
months
%
%

$
$
%
%
$/month
$/month
/year

Your mortgage payments over years will add up to .

Your rent payments over years will add up to .


Closing Costs

Map

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 REBNY Listing Service, Inc. All rights reserved. Participants and their affiliated Subscribers, if applicable, shall indicate on their IDX websites that IDX information is provided exclusively for consumers’ personal, non-commercial use and that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Powered by RealPlus
RLS Data display by Elika Associates II LLC