Building
SixThirtyOne
631 E 18th St, Brooklyn, NY 11226

View available floor plans

SixThirtyOne is a lowrise condo building located at 631 E 18th St in Brooklyn. It was built in 2019. The structure rises 6 stories and contains 26 units.


Located in the Ditmas Park, SixThirtyOne provides a professional service level featuring video intercom. Residents enjoy a suite of amenities including common outdoor space, common roof deck and elevator, among others. Pets are welcome in this pet-friendly community.

Units

Unit
Status
Price
$580,000 Avg.
Price/Sq. Ft.
$966/sf Avg.
Bd
Ba
Sq. Ft.
Floor Plan
631 E 18th St - #3CActive$660,000-21-View
631 E 18th St - #3AActive$570,000$921/sf11619View
631 E 18th St - #2BContract Signed$510,000$1,012/sf11504

Building
SixThirtyOne
631 E 18th St, Brooklyn, NY 11226

View available floor plans

Building Amenities

Common Outdoor Space
Common Roof Deck
Elevator
Intercom
Laundry in Building
Lowrise
New Development
Post-war
Video Intercom

Building Policies

General Policies
Pet Policy: Pets Allowed
Policies are subject to change at the discretion of building management and may not apply to renters.

Building Facts

Building Overview
Property Type: Condo
Building Size: Lowrise
Access: Elevator
Service Level: -
Year Built: 2019
Building Era: New Development
Year Last Altered: 2016
Building Class: D6
Tax Abatement: 421A
Tax Abatement Expires: 2034
Owner: MERNY SCHWARTZ,631 E. 18TH STREET, L
Size & Dimensions
Units: 26
Stories: 6
Building Sq. Ft.: 26,115 Sq. Ft.
Lot Sq. Ft.: 5,200 Sq. Ft.
Building Width: 40 Ft.
Building Depth: 75 Ft.
Lot Width: 74.33 Ft.
Lot Depth: 109.50 Ft.
Buildings on Lot: 1
Zoning & Use
Zoning Districts: R7A
Land Use Category: D6
Residential Units: 26
Total Units: 26
Residential Area(SF): 22,384 Sq. Ft.
Commercial Area(SF): 3,731 Sq. Ft.
Location Details
Street Address: 631 E 18th St
Zip Code: 11226
Building Name: SixThirtyOne
Complex Name: -
Neighborhood: Ditmas Park
City: Brooklyn
State: NY
Districts
Community District: 314
City Council: 40
Police Precinct: 70
Fire Department: E281
School District: 22

Similar Buildings

Neighborhood Map and Transit

Schools

SchoolTypeGradesDistanceRating
Our Lady of Refuge SchoolPrivatePK-80.1 mi
NR
Brooklyn Seventh-Day Adventist SchoolPrivatePK-80.3 mi
NR
P.S. 315PublicPK-50.4 mi
6
Cortelyou Early Childhood CenterPrivatePK-50.4 mi
NR

Our Lady of Refuge School

PK-8, 0.1 mi, Private

NR

Brooklyn Seventh-Day Adventist School

PK-8, 0.3 mi, Private

NR

P.S. 315

PK-5, 0.4 mi, Public

6

Cortelyou Early Childhood Center

PK-5, 0.4 mi, Private

NR

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Neighborhood image
Ditmas Park
South Brooklyn’s secret suburb. This jaw-droppingly beautiful hood seems almost too good to be true: a charming suburb inside city limits, with a warm, diverse community and one of the country’s richest concentrations of Victorian architecture. If big porches, friendly neighbors, and a short...
Ditmas Park Guide

More information about 631 E 18th St, Brooklyn, NY 11226

As a benchmark, a 2-bedroom condo at 631 East 18th Street, Unit 3C is currently on the market at $660,000, while East 18th Street recently sold for $399,000. This building sits amid Albemarle and Kenmore Terraces, Beverley Square West, Caton Park, Central Brooklyn and Ditmas Park, intersecting ZIP codes 11203, 11230, 11229, 11225 and 11218 — and directly borders New York, Brooklyn, Queens, Manhattan and Jersey City. For added insight, see how this compares to average rental rates in Brooklyn. *All numbers are for indication only and are not guaranteed.

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Updated as of Apr 3, 2026.