Donald Brennan
Brennan Realty Services LLC
(973) 649-9527
12 Total Sales
1 in South Slope
$1,295,000 Price
684 6th Ave Brooklyn, NY 11215
South Slope NeighborhoodEstimated Value: $1,634,812 - $1,762,000
3
Beds
3
Baths
2,340
Sq Ft
$724/Sq Ft
Est. Value
Highlights
- Green Building
- Magnet School of Math Science & Design Technology Rated A-
- 3-minute walk to Slope Park Playground
About This Home
As of October 2025Could this be the last affordable house in Brooklyn?
Have you been for a townhouse in Brooklyn thought you had no options in the current market? If so, you're not alone!
Positioned at the junction of Greenwood Heights and Park Slope, but still in the 11215 zip code, 684 6th Avenue represents one of the last opportunities in a marketplace primarily filled with properties constructed for others at exorbitant prices, offering a compelling and affordable chance to create your ideal home, customized to your personal preferences and needs, at the time of your choosing!
Currently configured as 3 units with a cellar, this 20x42 residence on an 80-foot lot provides 2340 square feet of living space. According to Property Shark, the property may include an extra 864 square feet of FAR.
Indeed, this attractive and budget-friendly opportunity to design and build your perfectly located dream home, tailored to your unique tastes and specifications, is a surefire way to achieve your dream residence without compromising on location and keeps you on this side of the bridge!
Additionally, this opportunity gives innovative developers and builders of all types a chance to respond to New York's insatiable appetite for luxurious residences and meet the demand for finished townhomes under the $3MM mark.
For a virtual tour, bookings and floor plan, kindly watch the video provided.
All prospective buyers should verify the information provided
Last Agent to Sell the Property
Corcoran Group License #30SU0878539 Listed on: 05/15/2025
Last Buyer's Agent
Direct Deal Listing
Direct Deal License #A
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Townhouse Details
Home Type
- Townhome
Year Built
- Built in 1899
Lot Details
- 1,600 Sq Ft Lot
- Lot Dimensions are 80.00x20.00
Home Design
- Entry on the 1st floor
Interior Spaces
- 2,340 Sq Ft Home
- 3-Story Property
- Basement
Bedrooms and Bathrooms
- 3 Bedrooms
- 3 Full Bathrooms
Eco-Friendly Details
- Green Building
- Smoke Free Home
Utilities
- No Cooling
Community Details
- 3 Units
- Greenwood Heights Subdivision
Listing and Financial Details
- Legal Lot and Block 0047 / 00891
Ownership History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
May 15, 2025
Closed on
Oct 27, 2025
Sold by
Diehm Cassandra
Bought by
Seller's Agent
Lisa Sulfaro
Corcoran Group
Buyer's Agent
Direct Deal Listing
Direct Deal
List Price
$1,695,000
Sold Price
$1,695,000
Views
16
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$396
Avg. Annual Appreciation
-0.03%
Purchase Details
Closed on
Jul 13, 2009
Sold by
Klein Adam and Reboh Isabelle
Bought by
Diehm Cassandra
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$626,250
Interest Rate
5.58%
Mortgage Type
Purchase Money Mortgage
Purchase Details
Closed on
Oct 14, 2004
Sold by
Routgauzer Lana
Bought by
Klein Adam and Reboh Isabelle
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$497,750
Interest Rate
5.74%
Purchase Details
Closed on
Jun 16, 2000
Sold by
Picone Frank and Picone Anna
Bought by
Routgauzer Lana
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$238,500
Interest Rate
8.21%
Home Values in the Area
Average Home Value in this Area
Agents Specializing in South Slope, NY
-
Donald Brennan
-
Benjamin Dixon
Benjamin Dixon
Douglas Elliman Real Estate
(646) 681-4023
91 Total Sales
1 in South Slope
$6,250,000 Price
-
Christine Olivieri
Christine Olivieri
Ben Bay Realty Co
(866) 849-5388
34 Total Sales
1 in South Slope
$850,000 Price
-
Barry Hochhauser
Barry Hochhauser
RE/MAX City Square
(516) 558-5605
2 Total Sales
1 in South Slope
$5,195,000 Price
-
Michael Chadwick
Michael Chadwick
Corcoran Group
(585) 514-5833
21 Total Sales
1 in South Slope
$875,000 Price
-
Cheryl Rosenthal
Cheryl Rosenthal
Responds QuicklyRealty Trends Corp
(516) 518-7267
155 Total Sales
1 in South Slope
$2,999,999 Price
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Buyer | Sale Price | Title Company |
|---|---|---|---|
| $1,695,000 | -- | ||
| Diehm Cassandra | $870,000 | -- | |
| Klein Adam | $650,000 | -- | |
| Routgauzer Lana | $265,000 | Regal Title Agency |
Source: Public Records
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Borrower | Loan Amount |
|---|---|---|---|
| Previous Owner | $14,735 | ||
| Previous Owner | -- | $626,250 | |
| Previous Owner | Klein Adam | $497,750 | |
| Closed | Routgauzer Lana | $514,000 | |
| Closed | -- | $238,500 |
Source: Public Records
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 10/28/2025 10/28/25 | For Sale | $1,695,000 | 0.0% | $724 / Sq Ft |
| 10/27/2025 10/27/25 | Sold | $1,695,000 | 0.0% | $724 / Sq Ft |
| 09/10/2025 09/10/25 | Off Market | $1,695,000 | -- | -- |
| 08/06/2025 08/06/25 | Price Changed | $1,695,000 | -5.8% | $724 / Sq Ft |
| 07/29/2025 07/29/25 | Price Changed | $1,800,000 | -5.3% | $769 / Sq Ft |
| 05/15/2025 05/15/25 | For Sale | $1,900,000 | -- | $812 / Sq Ft |
Source: Real Estate Board of New York (REBNY)
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2026 | $7,284 | $119,280 | $16,440 | $102,840 |
| 2025 | $6,872 | $134,520 | $16,440 | $118,080 |
| 2024 | $6,872 | $142,860 | $16,440 | $126,420 |
| 2023 | $6,556 | $141,000 | $16,440 | $124,560 |
| 2022 | $6,080 | $115,380 | $16,440 | $98,940 |
| 2021 | $6,409 | $89,100 | $16,440 | $72,660 |
| 2020 | $3,162 | $108,060 | $16,440 | $91,620 |
| 2019 | $5,965 | $85,920 | $16,440 | $69,480 |
| 2018 | $5,484 | $26,900 | $5,758 | $21,142 |
| 2017 | $5,174 | $25,380 | $5,140 | $20,240 |
| 2016 | $5,074 | $25,380 | $6,940 | $18,440 |
| 2015 | $2,888 | $25,186 | $7,728 | $17,458 |
| 2014 | $2,888 | $23,761 | $8,546 | $15,215 |
Source: Public Records
Agents Affiliated with this Home
-
Lisa Sulfaro
Seller's Agent in 2025
Lisa Sulfaro
Corcoran Group
(718) 923-8025
2 in this area
24 Total Sales
-
DL
Buyer's Agent in 2025
Direct Deal Listing
Direct Deal
Map
Source: Real Estate Board of New York (REBNY)
MLS Number: RLS20024170
APN: 00891-0047
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
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 The Real Estate Board of New York, Inc., All rights reserved.
RLS Data display by Homes.com LLC
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