New York City » 11231 » Union St » 345 Union St

345 Union Street #303, Brooklyn, NY 11231 - Property report

Also known as: 345 Union St #303

Property image for 345 Union Street #303, Brooklyn, NY 11231

Property type

Condo - Residential Unit in 2-10 Unit Building (R1)

Year built

2007

Lot sq. ft.

4,500

General information

Address

Primary address

345 Union Street #303

ZIP code

11231

Neighborhood

Carroll Gardens

Borough

Brooklyn

Block & lot

00428-1206

Building

Property type

Condo - Residential Unit in 2-10 Unit Building (R1)

Unit sq. ft.

897

Buildings on lot

Stories

Year built

2007

Basement

Tax

Tax year

2026-2027

Property tax

$13,257

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

Distance to wide street

Lot sq. ft.

4,500

Area overview

Walk score

99 /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.

Ownership

Ownership information for 345 Union Street #303, Brooklyn, NY

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Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 345 Union Street #303, Brooklyn, NY 11231

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date	Type	Party 1	Party 2
06/27/2025 - R	Initial UCC1 (2025062300887001)	XXX XXXXX XXXXXX XXX	XXXXXXXX XXXX X X
03/25/2020 - R 02/28/2020 - D	Termination of Assign of L&R (2020031600466005)	XXX XXXXX XXXXXX XXX	XXX XXXX XXXXXXXXX XXXX
03/25/2020 - R 02/28/2020 - D	Assignment of Leases and Rents (2020031600466004)	XXX XXXXX XXXXXX XXX	XXXXXXXXX XXXX
03/25/2020 - R 02/28/2020 - D	Agreement (2020031600466003)	XXX XXXXX XXXXXX XXX	XXXXXXXXX XXXX
03/25/2020 - R 02/28/2020 - D	Mortgage (2020031600466002)	XXX XXXXX XXXXXX XXX	XXXXXXXXX XXXX
03/25/2020 - R 02/28/2020 - D	Assignment, Mortgage (2020031600466001)	XXX XXXX XXXXXXXXX XXXX	XXXXXXXXX XXXX
11/29/2013 - R	Initial UCC1 (2013112000382002)	XXX XXXXX XXXXXX XXX	XXX XXXX XXXXXXXXX XXXX
11/29/2013 - R	Initial UCC1 (2013112000382001)	XXX XXXXX XXXXXX XXX	XXX XXXX XXXXXXXXX XXXX
11/29/2013 - R	UCC3 Termination (2013112000239001)	XXX XXXXX XXXXXX XXX	XXX XXXX XXXXXXXXX XXXX
01/09/2014 - R 11/01/2013 - D	Agreement (2013111100334001)	XXX XXXXX XXXXXX XXX	XXX XXXX XXXXXXXXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 345 Union Street #303, Brooklyn, NY

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

Current property tax

Tax year

2025-2026

Property tax

$13,257

Municipal exemptions

Recent tax assessments

Market value

$508,006

Assessed value

$228,603

More about New York City property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year	Market value	Assessed value	Taxable amount	Tax rate	Base tax	Property tax	Y-o-Y change
2025/26	$438,242	$197,209	$98,679	12.439%	$12,275	$12,275	+7.47%
2024/25	$426,351	$191,858	$91,369	12.5%	$11,421	$11,421	-0.02%
2023/24	$355,292	$159,882	$91,369	12.502%	$11,423	$11,423	+26.27%
2022/23	$349,179	$157,131	$73,747	12.267%	$10,861	$9,047	+34.38%
2021/22	$279,295	$125,683	$55,022	12.235%	$10,030	$6,732	+40.31%
2020/21	$271,144	$122,015	$39,114	12.267%	$9,312	$4,798	+49.53%
2019/20	$225,977	$101,690	$25,726	12.473%	$8,767	$3,209	+74.43%
2018/19	$188,315	$84,742	$14,586	12.612%	$8,864	$1,840	-0.84%
2017/18	$159,666	$71,850	$14,586	12.719%	$8,662	$1,855	-1.34%
2016/17	$149,836	$67,426	$14,586	12.892%	$8,130	$1,880	+0.07%

Permits

Permit information for 345 Union Street #303, Brooklyn, NY

No recently recorded permits for this property.

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Violations

HPD Violations

No recently recorded violations 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 NW Corner

Station lines

F-G

Distance (miles)

0.062

View subway map

Access the detailed traffic volume map for 345 Union Street #303, 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. 58 The Carroll	8	No	Public	PK, K-5	751	0.13
P.S. 58 The Carroll	8	No	Public	PK, K-5	751	0.13
Pache Montessori	NR	No	Private	PK-K	122	0.17
Pache Montessori	NR	No	Private	PK-K	122	0.17
Hannah Senesh Community Day School	NR	No	Private	K-8	231	0.18
P.S. 32 Samuels Mills Sprole	6	No	Public	PK, K-5	452	0.19
P.S. 32 Samuels Mills Sprole	6	No	Public	PK, K-5	452	0.19
Success Academy Cobble Hill	9	No	Charter	K-4	401	0.21
P.S. 29 John M Harrigan	9	No	Public	PK, K-5	721	0.38
P.S. 29 John M Harrigan	9	No	Public	PK, K-5	721	0.38

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	0.21
Mary McDowell Friends School	NR	No	Private	6-10	290	0.38
Brooklyn Heights Montessori School	NR	No	Private	PK-8	260	0.42
International School of Brooklyn	NR	No	Private	PK, K-8	0	0.43
International School of Brooklyn	NR	No	Private	PK-8	369	0.43
Brooklyn Secondary School For Collaborative Studie	6	No	Public	6-12	671	0.45
P.S. 372 The Children S School	NR	No	Public	PK, K-8	436	0.59
Summit Academy Charter School	5	No	Charter	6-12	203	0.65
Pave Academy Charter School	5	No	Charter	K-8	473	0.67

Nearest high schools

Name	Rating	Att. zoned	Type	Grade range	No of students	Distance (miles)
Digital Arts and Cinema Technology High School	8	No	Public	9-12	331	0.21
School For International Studies	5	No	Public	6-12	782	0.21
New Dawn Charter High School	2	No	Charter	9-12	233	0.22
Cobble Hill School of American Studies	1	No	Public	9-12	316	0.27
Mary McDowell Friends School	NR	No	Private	6-10	290	0.38
Brooklyn Secondary School For Collaborative Studie	6	No	Public	6-12	671	0.45
Al-Madinah School	NR	No	Private	PK-12	790	0.61
Brooklyn Frontiers High School	3	No	Public	9-12	145	0.61
Summit Academy Charter School	5	No	Charter	6-12	203	0.65
P.S. 369 Coy L Cox School	NR	No	Public	K-12	487	0.67

Frequently asked questions

What is the year built for 345 Union Street #303, Brooklyn, NY 11231?

The development at 345 Union Street #303, Brooklyn, NY 11231 was built in 2007.

What is the total square footage of 345 Union Street #303, Brooklyn, NY 11231?

345 Union Street #303, Brooklyn, NY 11231 has a total of 897 square feet.

What is the assessed value of 345 Union Street #303, Brooklyn, NY 11231?

345 Union Street #303, Brooklyn, NY 11231 is currently assessed at $228,603.

What are the property taxes for 345 Union Street #303, Brooklyn, NY 11231?

The property taxes for 345 Union Street #303, Brooklyn, NY 11231 total $13,256.

How many residential units does this building have?

This building has 1 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.