New York City » 11231 » Union St » 370 Union St

370 Union Street, Brooklyn, NY 11231 - Property report

Also known as: 370 Union St

Property image for 370 Union Street, Brooklyn, NY 11231

Property type

Special Condominium Billing Lot (R0)

Year built

1910

Lot sq. ft.

5,667

General information

Due to this address' parcel subdivisions, this property report may contain limited information. For the full range of property data, view the property report of each individual parcel.

Address

Primary address

370 Union Street

Alternate address(es)

370-372 Union St

ZIP code

11231

Neighborhood

Carroll Gardens

Borough

Brooklyn

Block & lot

00436-7501

Building

Property type

Special Condominium Billing Lot (R0)

Building sq. ft.

24,379

Building dimensions

58 ft x 81 ft

Buildings on lot

Stories

Year built

1910

Tax

Tax year

2026-2027

Tax class

Floor area ratio (FAR)

Commercial FAR

Residential FAR

Buildable area

Zoning & Use

Zoning

Qualified opportunity zone

Residential units

Residential sq. ft.

Commercial units

Office sq. ft.

Retail sq. ft.

Lot

Frontage(s)

Union Street (narrow)

Nearest wide street

Hoyt Street

Distance to wide street

Lot dimensions

57.83 ft x 98 ft

Lot sq. ft.

5,667

Area overview

Walk score

98 /100. Walker's Paradise

Transit score

100 /100. Rider's Paradise

Bike score

97 /100. Biker's Paradise

School district

Community district

View more such as transportation, nearby schools and risk designations.

Units for 370 Union Street, Brooklyn, NY

Unit	Sale date	Sq. ft.
Unit 1A		858
Unit 1B	08/26/2013	850
Unit 1C		957
Unit 1D		833
Unit 2A		1,005
Unit 2B	12/19/2022	957
Unit 2C		858
Unit 2D		833
Unit 3A		991
Unit 3B	04/22/2025	1,005
Unit 3C		957
Unit 3D		858
Unit 4A	12/07/2021	991
Unit 4B		1,005
Unit 4C	07/27/2017	957
Unit 4D	02/12/2020	833

Ownership

Ownership information for 370 Union Street, Brooklyn, NY

Unlock full ownership info — get contact details, including phone numbers and emails for owners and the real people behind LLCs.

Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 370 Union Street, Brooklyn, NY 11231

No recently recorded sales for this property.

More about New York City property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 370 Union Street, Brooklyn, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

This is a condominium building, so there are no property taxes. In a condominium the property taxes are paid by the individual unit owners. If you want to see the property taxes for a particular unit, look at the property report for that unit.

More about New York City property taxes

Permits

Permit information for 370 Union Street, Brooklyn, NY

Filing date	Job type	Job status	Job description	Initial cost
04/16/2026	Alteration
01/22/2026	Alteration
10/27/2020	Alteration

*Most recent permits on record for this property.

More about New York City property records

Violations

HPD Violations

Violation ID	Inspection date	Class	NOV issue date	Status
	05/06/2026	A
	07/28/2025	C
	07/28/2025	C

*Most recent HPD violations on record for this property.

Neighborhood

Carroll Gardens, Columbia, RedHook residential market stats

Access a detailed real estate market overview of Carroll Gardens, Columbia, RedHook so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Carroll Gardens, Columbia, RedHook and compare it to other neighborhoods in Brooklyn.

Median sale price

—

Median price/sq. ft.

—

Brooklyn median sale price

$899,000

6% Y-o-Y

Check out recently sold homes in Brooklyn and see how their prices compare.

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones

Hurricane evacuation zones

Subway & traffic

Closest station

Smith St & President St at NE Corner

Station lines

F-G

Distance (miles)

0.086

View subway map

Access the detailed traffic volume map for 370 Union Street, Brooklyn, NY 11231 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity. View daily traffic map

Schools

Nearest elementary schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
P.S. 32 Samuels Mills Sprole	6	Yes	Public	PK, K-5	452	0.08
P.S. 32 Samuels Mills Sprole	6	Yes	Public	PK, K-5	452	0.08
P.S. 58 The Carroll	8	No	Public	PK, K-5	751	0.16
P.S. 58 The Carroll	8	No	Public	PK, K-5	751	0.16
Hannah Senesh Community Day School	NR	No	Private	K-8	231	0.18
Pache Montessori	NR	No	Private	PK-K	122	0.27
Pache Montessori	NR	No	Private	PK-K	122	0.27
Success Academy Cobble Hill	9	No	Charter	K-4	401	0.29
International School of Brooklyn	NR	No	Private	PK, K-8	0	0.42
International School of Brooklyn	NR	No	Private	PK, K-8	0	0.42

Nearest middle schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
Hannah Senesh Community Day School	NR	No	Private	K-8	231	0.18
School For International Studies	5	No	Public	6-12	782	0.29
International School of Brooklyn	NR	No	Private	PK, K-8	0	0.42
International School of Brooklyn	NR	No	Private	PK-8	369	0.42
Mary McDowell Friends School	NR	No	Private	6-10	290	0.45
P.S. 372 The Children S School	NR	No	Public	PK, K-8	436	0.48
Brooklyn Heights Montessori School	NR	No	Private	PK-8	260	0.49
Brooklyn Secondary School For Collaborative Studie	6	No	Public	6-12	671	0.51
P.S. 369 Coy L Cox School	NR	No	Public	K-12	487	0.66
The Math And Science Exploratory School	7	No	Public	6-8	522	0.68

Nearest high schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
New Dawn Charter High School	2	No	Charter	9-12	233	0.19
School For International Studies	5	No	Public	6-12	782	0.29
Digital Arts and Cinema Technology High School	8	No	Public	9-12	331	0.29
Cobble Hill School of American Studies	1	No	Public	9-12	316	0.30
Mary McDowell Friends School	NR	No	Private	6-10	290	0.45
Al-Madinah School	NR	No	Private	PK-12	790	0.50
Brooklyn Secondary School For Collaborative Studie	6	No	Public	6-12	671	0.51
P.S. 369 Coy L Cox School	NR	No	Public	K-12	487	0.66
Brooklyn Frontiers High School	3	No	Public	9-12	145	0.66
Brooklyn High School of the Arts	5	No	Public	9-12	927	0.68

Neighbors for 370 Union Street, Brooklyn, NY

155 15th St, Brooklyn 805 5th Ave, Brooklyn 137 5th Ave, Brooklyn 182 15th St, Brooklyn 44 Duffield St, Brooklyn 192 Water St, Brooklyn 645 Warren St, Brooklyn 210 Joralemon St, Brooklyn 33 St Marks Ave, Brooklyn 292 7th St, Brooklyn 534 6th Ave, Brooklyn 538 57th St, Brooklyn 392 Bergen St, Brooklyn 35 Woodhull St, Brooklyn 205 Water St, Brooklyn

Frequently asked questions

What is the year built for 370 Union Street, Brooklyn, NY 11231?

The development at 370 Union Street, Brooklyn, NY 11231 was built in 1910.

What is the total square footage of 370 Union Street, Brooklyn, NY 11231?

370 Union Street, Brooklyn, NY 11231 has a total of 24,379 square feet.

How many residential units does this building have?

This building has 16 residential unit(s).

Disclaimer

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.