David Castle
Keller Williams Realty Greater
(888) 961-6134
24 Total Sales
1 in Park Slope
$639,000 Price
Estimated Value: $2,033,457
Welcome to 84 6th Avenue, an exquisite two-bedroom, two-and-a-half-bathroom duplex condominium where timeless Brooklyn architecture meets thoughtful, high-end renovation. Nestled within a beautifully restored 1884 Neo-Grec brownstone in the Park Slope Historic District, this nearly 1,700-square-foot home offers an extraordinary combination of indoor comfort and rare private outdoor space.
Meticulous design choices abound—from the wide-plank white oak floors and soaring ceilings to the Pella windows and custom millwork that elevate every room. The open-concept great room is both welcoming and functional, anchored by a bespoke chef’s kitchen featuring custom oak cabinetry and a full suite of Bertazzoni appliances. Whether entertaining or unwinding, the seamless transition to the 734-square-foot private yard—with its mature trees, elegant fencing, and generous patio—is an undeniable highlight.
The king-size primary suite is a true sanctuary, offering two closets and a serene en suite bath clad in floor-to-ceiling statuary marble, complete with a walk-in rain shower and refined brushed nickel fixtures. A well-proportioned second bedroom and beautifully appointed guest bath with soaking tub round out the main level.
On the lower floor, a sprawling recreation space adapts easily to your lifestyle—as a media room, playroom, office, or third bedroom—complemented by a chic powder room, full-size washer and dryer, and custom dry bar with wine fridge.
Residents of this boutique brownstone enjoy modern conveniences including Central HVAC and ButterflyMX virtual doorman system, all while being moments from Prospect Park, Grand Army Plaza, and Park Slope’s best dining, shopping, and cultural destinations. With convenient access to multiple subway lines and the LIRR, the entire city is at your doorstep.
This is brownstone Brooklyn living at its most refined—classic, curated, and completely turnkey.
Last Buyer's Agent
Non Member
Non Member Office
David Castle
Keller Williams Realty Greater
(888) 961-6134
24 Total Sales
1 in Park Slope
$639,000 Price
Dogan Baruh
Compass
(917) 473-8158
54 Total Sales
1 in Park Slope
$4,800,000 Price
Cesar Guevara
Bond New York Properties LLC
(646) 362-7417
9 Total Sales
1 in Park Slope
$4,125,000 Price
Victoria Alexander
Realty Collective LLC
(888) 410-6137
33 Total Sales
4 in Park Slope
$363K - $4M Price Range
Teri Cavanaugh
Corcoran Group
(628) 800-0923
33 Total Sales
9 in Park Slope
$815K - $4.4M Price Range
Ragini Dunn
COLDWELL BANKER REALTY
(929) 324-9185
24 Total Sales
1 in Park Slope
$1,500,000 Price
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 | Prior Sale |
|---|---|---|---|---|---|
| 10/30/2025 10/30/25 | Sold | $1,975,000 | -1.0% | $1,165 / Sq Ft | |
| 10/07/2025 10/07/25 | Pending | -- | -- | -- | |
| 09/04/2025 09/04/25 | Price Changed | $1,995,000 | -7.2% | $1,177 / Sq Ft | |
| 07/20/2025 07/20/25 | For Sale | $2,150,000 | -6.3% | $1,268 / Sq Ft | |
| 07/06/2023 07/06/23 | Off Market | $2,295,000 | -- | -- | |
| 07/02/2023 07/02/23 | Off Market | $2,295,000 | -- | -- | |
| 06/29/2023 06/29/23 | Sold | $2,250,000 | -2.0% | $1,327 / Sq Ft | View Prior Sale |
| 03/17/2023 03/17/23 | Pending | -- | -- | -- | |
| 02/28/2023 02/28/23 | For Sale | $2,295,000 | -- | $1,354 / Sq Ft |
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 | -- | -- | ||
| 2025 | -- | -- | ||
| 2024 | -- | $0 | $0 | $0 |
| 2023 | -- | $0 | $0 | $0 |
Seller's Agent in 2025
Michael J Franco
Compass
(917) 817-4122
2 in this area
202 Total Sales
Seller Co-Listing Agent in 2025
Miriam Richards
Compass
(212) 941-2519
2 in this area
167 Total Sales
Seller Co-Listing Agent in 2025
Greg Holzmann
Compass
(212) 941-2608
1 in this area
109 Total Sales
NM
Buyer's Agent in 2025
Non Member
Non Member Office
Seller's Agent in 2023
Alexander Maroni
Douglas Elliman Real Estate
(917) 704-3102
34 in this area
193 Total Sales
Seller Co-Listing Agent in 2023
Jed Klebanow
Douglas Elliman Real Estate
(646) 248-2136
10 in this area
30 Total Sales
Source: Real Estate Board of New York (REBNY)
MLS Number: RLS20038065
APN: 00935-7504
Ask me questions while you tour the home.