Kings  »  11206  »  Union Ave  »  306 Union Ave

306 Union Avenue, Brooklyn, NY 11206 - Property report

Also known as: 1-3 Ten Eyck St

Property image for 306 Union Avenue, Brooklyn, NY 11206
static Mapbox map

Property type

Walk-up Apartment - Over Six Families with Stores (C7)

Year built

1920

Lot sq. ft.

4,800

General information

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Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

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
306 Union Avenue
Alternate address(es)
1-3 Ten Eyck St
ZIP code
11206
Neighborhood
Williamsburg
Borough
Brooklyn
Block & lot
02791-0001

Owner

Find out who owns 306 Union Avenue, Brooklyn, NY 11206. Uncover corporate and individual owners with a free account.

Building
Property type
Walk-up Apartment - Over Six Families with Stores (C7)
Building sq. ft.
25,970
Building dimensions
90 ft x 48 ft
Buildings on lot
1
Stories
6
Year built
1920
Last altered
1988
Building material
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
21
Residential sq. ft.
Office sq. ft.
Retail sq. ft.
Lot
Lot dimensions
100 ft x 48 ft
Lot sq. ft.
4,800

Area overview

Walk score
98 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
91 /100.  Biker's Paradise
School district
14
Community district
1
Closest police station
1.17 Miles
Closest fire station
0.58 Miles

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

Ownership

Ownership information for 306 Union Avenue, Brooklyn, NY

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Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 306 Union Avenue, Brooklyn, NY 11206

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
05/04/2006 - R
12/21/2005 - D		 Certificate of Reduction
(2006050300235001)		 XXXXX XXXXX XXXXXXX XXXXXXXXXXX XXX XXXX XX XXX XXXX XXX
06/14/1994 - R Certificate
(3990004318199)		 XXX XXX
05/27/1994 - R Agreement
(3310004297031)		 XXXXX XXXXX XXXXXXXXXXXXXXXXXX
01/28/1992 - R Assignment, Mortgage
(3840001664084)		 XXX XXXXXXXX XX XXXX XXXX XXX XXXX XXXX
01/28/1992 - R Agreement
(3830001664083)		 XXX XXXXXXXX XX XXXX XXXX XXXXXXX XXXX XXXX
04/28/1989 - R Agreement
(3780001450178)		 XXX XXX XXXXX XXXXX XXX XXXXXXXX
04/28/1989 - R Agreement
(3770001450177)		 XXXXX XXXXX XXX XXXXXXXX XXX XXX
04/28/1989 - R Mortgage
(3760001450176)		 XXXXX XXXXX XXX XXXXXXXX XXX XXX
03/03/1989 - R Uniform Commercial Code 3
(3560001857256)		 XXX XXXXX XXXXX XXXXXXX XXXX XX XXX XXXX
03/03/1989 - R Uniform Commercial Code 1
(3220001851722)		 XXXXX XXXXX XXXXXXX XXXX XX XXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 306 Union Avenue, 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
Municipal exemptions
Recent tax assessments
Market value
$3,046,000
Assessed value
$1,370,700

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 $2,807,000 $1,263,150 $0 12.439% $131,542 $0 n/a
2024/25 $2,532,000 $1,139,400 $0 12.5% $125,516 $0 n/a
2023/24 $2,249,000 $1,012,050 $0 12.502% $118,448 $0 n/a
2022/23 $2,255,000 $1,014,750 $0 12.267% $111,386 $0 n/a
2021/22 $1,907,000 $858,150 $0 12.235% $101,086 $0 n/a
2020/21 $2,214,000 $996,300 $0 12.267% $92,959 $0 n/a
2019/20 $1,902,000 $855,900 $0 12.473% $80,971 $0 n/a
2018/19 $1,811,000 $814,950 $0 12.612% $69,841 $0 n/a
2017/18 $1,346,000 $605,700 $0 12.719% $59,056 $0 n/a
2016/17 $1,147,000 $516,150 $0 12.892% $50,623 $0 n/a
Permits

Permit information for 306 Union Avenue, Brooklyn, NY

Filing date Job type Job status Job description Initial cost
12/03/2025 Alteration
12/02/2025 Alteration
11/20/2025 Alteration
11/05/2025 Alteration
05/02/2015 Alteration type 3

*Most recent permits on record for this property.

More about New York City property records

Violations

DOB Violations

Violation ID Issue date Type Status
09/02/2025 C-construction other optional
06/30/2023 Lblvio-low pressure boiler boiler required
06/30/2023 Lblvio-low pressure boiler boiler required

*Most recent DOB violations on record for this property.

Neighborhood

Brooklyn commercial market stats

Review a detailed real estate market overview of Brooklyn and assess current trends, property values, property types sold and transaction volumes. View the median price per square foot in Brooklyn and compare it to other New York City boroughs.

Q2 2026 median price/sq. ft.

$533

1.5% Y-o-Y

Q1 2026 median price/sq. ft.

$471

-8.9% Y-o-Y

2025 median price/sq. ft.

$523

5.2% 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

Property location map
FEMA flood zones
X

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
6

Subway & traffic

Closest station
Hooper St & Broadway at NW Corner
Station lines
J-M
Distance (miles)
0.257
View subway map

Access the detailed traffic volume map for 306 Union Avenue, Brooklyn, NY 11206 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

Neighbors for 306 Union Avenue, Brooklyn, NY

14 Maujer St, Brooklyn 215 Maujer St, Brooklyn 114 Bushwick Ave, Brooklyn 44 Maujer St, Brooklyn 116 Bushwick Ave, Brooklyn 20 Maujer St, Brooklyn 38 Maujer St, Brooklyn 318 Union Ave, Brooklyn 16 Maujer St, Brooklyn 221 Maujer St, Brooklyn 439 Lorimer St, Brooklyn 219 Maujer St, Brooklyn 40 Maujer St, Brooklyn 435 Lorimer St, Brooklyn 233 Maujer St, Brooklyn 118 Bushwick Ave, Brooklyn 42 Maujer St, Brooklyn 213 Maujer St, Brooklyn 229 Maujer St, Brooklyn 231 Maujer St, Brooklyn

Nearby ZIP codes for 306 Union Avenue, Brooklyn, NY

10002, New York City, NY 10009, New York City, NY 10010, New York City, NY 11101, New York City, NY 11104, New York City, NY 11109, New York City, NY 11201, New York City, NY 11205, New York City, NY 11211, New York City, NY 11212, New York City, NY 11213, New York City, NY 11216, New York City, NY 11217, New York City, NY 11221, New York City, NY 11222, New York City, NY 11225, New York City, NY 11233, New York City, NY 11237, New York City, NY 11238, New York City, NY 11378, New York City, NY

Frequently asked questions

What is the year built for 306 Union Avenue, Brooklyn, NY 11206?

The development at 306 Union Avenue, Brooklyn, NY 11206 was built in 1920.

What is the market value of 306 Union Avenue, Brooklyn, NY 11206?

The current market value of 306 Union Avenue, Brooklyn, NY 11206 is $3,046,000.

What is the total square footage of 306 Union Avenue, Brooklyn, NY 11206?

306 Union Avenue, Brooklyn, NY 11206 has a total of 25,970 square feet.

How many commercial spaces does this building have?

The number of commercial spaces in this building is 2.

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