First Showing Sunday 11/2. This charming two-family house has been in the same family for almost 50 years and is priced to allow for renovation and/or conversion. Sold “as is.” 654 Union Street has tremendous potential for a user or investor with its additional unused buildable square feet. This property is zoned R6A with a Floor Area Ratio (FAR) of 3 and current build is approximately 1.3.
The present configuration is a lower duplex with a living room, dining room, bathroom & kitchen that leads to the huge 48ft deep backyard. Above are two bedrooms and a versatile third room in the center. The updated top floor one bedroom apartment can be rented for income or owner occupied while renovations are ongoing. This home can easily convert into a one family.
Ideally located on Union Street that boasts two community gardens as well as a CSA. Steps to subway, bustling 5th avenue, Citi bikes, Park Slope Coop, restaurants and shops.
In contract
$2,200,000
654 Union St, Brooklyn, NY 11215
4beds
1,920sqft
Multi Family
Built in 1901
-- sqft lot
$-- Zestimate®
$1,146/sqft
$-- HOA
What's special
Lower duplex
- 247 days |
- 45 |
- 0 |
Zillow last checked:
Listing updated:
Listed by:
Brenton Realty 917-586-4448,
Ruthanne Pigott,
Rachel Aylward
Source: StreetEasy,MLS#: S1798187
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Appliances
- Included: Washer/Dryer
Features
- Flooring: Hardwood
Interior area
- Total structure area: 1,920
- Total interior livable area: 1,920 sqft
Property
Features
- Patio & porch: Other
- Exterior features: Garden
- Has view: Yes
- View description: Garden
Details
- Parcel number: 009550025
- Special conditions: Resale
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Multi Family
Condition
- Year built: 1901
Community & HOA
Community
- Subdivision: Park Slope
Location
- Region: Brooklyn
Financial & listing details
- Price per square foot: $1,146/sqft
- Tax assessed value: $2,441,000
- Annual tax amount: $5,040
- Date on market: 10/30/2025
Estimated market value
Not available
Estimated sales range
Not available
$5,689/mo
Price history
| Date | Event | Price |
|---|---|---|
| 4/16/2026 | Sold | $2,050,000-6.8%$1,068/sqft |
Source: Public Record Report a problem | ||
| 12/2/2025 | Contingent | $2,200,000$1,146/sqft |
Source: StreetEasy #S1798187 Report a problem | ||
| 10/30/2025 | Listed for sale | $2,200,000$1,146/sqft |
Source: StreetEasy #S1798187 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $4,969 +4.6% | $146,460 -6.3% |
| 2024 | $4,749 | $156,360 +1.2% |
| 2023 | -- | $154,440 +4.8% |
| 2022 | -- | $147,300 +4.6% |
| 2021 | -- | $140,760 +13.9% |
| 2020 | $4,417 +5.9% | $123,540 |
| 2019 | $4,171 +1.2% | $123,540 +527% |
| 2018 | $4,122 +3.5% | $19,704 +0.9% |
| 2017 | $3,983 +8.1% | $19,537 +6% |
| 2016 | $3,685 | $18,433 +6% |
| 2015 | $3,685 +65.8% | $17,391 +5.9% |
| 2014 | $2,223 | $16,420 |
| 2013 | -- | $16,420 +0.9% |
| 2012 | -- | $16,281 +6% |
| 2011 | -- | $15,361 +6% |
| 2010 | -- | $14,493 +5.9% |
| 2009 | -- | $13,684 |
| 2008 | -- | $13,684 +0.9% |
| 2007 | -- | $13,568 +6% |
| 2006 | -- | $12,801 +6% |
| 2005 | -- | $12,078 +5.9% |
| 2004 | -- | $11,404 |
| 2003 | -- | $11,404 +0.9% |
| 2002 | -- | $11,307 +6% |
| 2001 | -- | $10,668 +6% |
| 2000 | -- | $10,065 |
Find assessor info on the county website
Monthly payment
Estimated monthly payment$1,822
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: Park Slope
Nearby schools
GreatSchools rating
- 7/10Ps 282 Park SlopeGrades: PK-5Distance: 0.2 mi
- 7/10Ms 266 Park Place Community Middle SchoolGrades: 6-8Distance: 0.3 mi
- 10/10Brooklyn Technical High SchoolGrades: 9-12Distance: 0.9 mi
A local agent can set up tours, give advice and negotiate with sellers.






