New Development Opened in 2017

Last updated on Jul 27, 2025

340 Dean Street

340 Dean Street is a 4-story post-war condominium building in Brooklyn's Boerum Hill neighborhood completed in 2016. The building contains 7 units and offers amenities such as central AC, a roof deck, and terraces/balconies.

Recent Sales (3) $1,186 Avg. price/ft²
All Units in Building (7)

Apt. 2B

Studio

1 bath

686 ft²

$850,000 -2.9%

$1,239

$875,000

Jul 22, 2025

Apt. 3B

Studio

1 bath

686 ft²

$880,000 -2.1%

$1,283

$899,000

Jun 16, 2025

Apt. 1A

2 beds

1.5 baths

1,429 ft²

$1,480,000 -1.3%

$1,036

$1,500,000

Oct 15, 2024

View Full Sales History

Overview of 340 Dean Street

340 Dean Street is a post-war condominium building in Brooklyn's Boerum Hill neighborhood finished in 2016. Situated at 340 Dean Street, between Third Avenue and Fourth Avenue, the building contains 7 units and rises 4 stories. The building's amenities include: central ac, roof deck and terraces / balconies.

Doorman

None

Type

Condo

Year Built

2016

Apartments

7 (view all units)

Floors

Neighborhood

Boerum Hill (Brooklyn)

Min Down

20%

Maps &
3D Aerial Views

View school info, local attractions, transportation options & more.

Experience amazing 3D aerial maps and fly throughs.

Amenities

Post War
Resident Storage
Central AC
Rooftop Terrace
Terraces / Balconies

Area Map StreetView

{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.68334, "lng": -73.98036, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

at 4th Ave 0.08 miles

at 4th Ave and Pacific 0.08 miles

at Fort Greene Pl and Lafayette Ave 0.37 miles

at Portland Ave and Fulton Ave 0.39 miles

at Schermerhorn 0.43 miles

Sales History

View Full Closing History

Sales Summary

Show:

Sales History by Apartment Size

View Full Closing History

Show:

Pricing Comparison of Similar Buildings

View Detailed Comparison

Editorial Coverage

The 74

between Second Avenue & Third Avenue

Lenox Hill

Gracious Upper East Side condos with Central Park and skyline views. Exquisite half- and full-floor homes by Rafael de Cardenas

Studios starting at $1,050,000
4 beds starting at $8,950,000
5 beds starting at $11,950,000

Learn More

RLS IDX Data display by CityRealty.com, LLC. 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.

CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.

An equal housing opportunity

{"1":[40.775,-73.94,"East Side","_es"],"2":[40.79,-73.99,"West Side","_ws"],"11":[40.76,-73.98,"Midtown","_m"],"3":[40.736,-73.99,"Downtown","_d"],"13":[40.711309,-74.01,"Financial
District\/BPC","_fd"],"4":[40.682676,-73.973007,"Brooklyn","_b"],"12":[40.8444,-73.9376,"Upper Manhattan","_um"],"5":[40.7477089,-73.930411,"LIC \/ Queens","_qns"],"18":[40.8889782,-73.9025,"The Bronx","_bx"]}

Turn Favoritesinto Tours!

340 Dean Street

Overview of 340 Dean Street

Maps &3D Aerial Views

Amenities

Sales History

Sales Summary

Sales History by Apartment Size

Pricing Comparison of Similar Buildings

Editorial Coverage

Buy & Sell

Rent

Buildings

Insights

Company

Turn Favorites
into Tours!

Maps &
3D Aerial Views