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| Primary address | 306 Union Avenue |
| Secondary address | 1-3 Ten Eyck St |
| Neighborhood | Williamsburg |
| Zip code | 11206 |
| Borough | Brooklyn |
| Block & lot | 02791-0001 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Lot sqft | 4,800 |
| Lot dimensions | |
| Building class | Walk-up Apartment - Over Six Families with Stores (C7) |
| Building sqft | 25,970 |
| Building dimensions |
| Buildings on lot | 1 |
| Stories | 6 |
| Year built | 1920 |
| Year last altered | 1988 |
| Construction type | Register |
| School district | 14 |
| Community district | 1 |
| Closest police station | 1.17 Miles |
| Closest fire station | 0.58 Miles |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
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You will find all alternate addresses for the property in this section.
This Walk-up Apartment - Over Six Families with Stores (C7) located at 306 Union Avenue, Brooklyn, NY 11206 has a total of 25,970 square feet.
What is the year built & the current market value of 306 Union Avenue, Brooklyn, NY 11206?306 Union Avenue, Brooklyn, NY 11206 was built in 1920 and has a current tax assessor's market value of $2,807,000.
How many commercial spaces does this building have?This building has 2 commercial spaces available for lease.
View property contacts like owners, building management, representatives from permits and tenants with a free account. For LLC-owned properties, access manually researched real owners and phone numbers.
Create a free account to view the complete sales history for 306 Union Avenue, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 306 Union Avenue, Brooklyn, NY 11206. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax: | $0 |
| Tax assessor's market value: | $2,807,000 |
| Assessed value: | $1,263,150 |
| Exemptions granted by city: | Register |
Here's the assessment & property tax history for 306 Union Avenue, Brooklyn, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessed value | Taxable | Tax rate % | Base tax | Property tax | Year over year 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 |
The complete history of permits filed for 306 Union Avenue, Brooklyn, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
Access a detailed real estate market overview of Brooklyn so you can assess current trends, property values, types of properties sold and transaction volume. View the median price per sqft in Brooklyn and compare it to other boroughs in New York City.
Check out recently sold homes in Brooklyn and see how their prices compare.
| FEMA flood zone(s): | X (See more on map) |
| Hurricane evacuation zone: | 6 (See more on map) |
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Distance to Subway
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| Closest station | Hooper St & Broadway at NW Corner | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Station lines | J-M | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.257 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Bus Routes
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| Name | Grand St/Union Av | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line | Q54 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distance (miles) | 0.081 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Here are the neighbors for 306 Union Avenue, Brooklyn, NY 11206.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 14 Maujer St, Brooklyn | 12,994 | 08/07/2013 | $6,650,000 |
| 215 Maujer St, Brooklyn | 6,000 | 08/26/1996 | |
| 114 Bushwick Ave, Brooklyn | 1,928 | 10/03/2019 | |
| 44 Maujer St, Brooklyn | 6,000 | 11/30/1999 | |
| 116 Bushwick Ave, Brooklyn | 1,928 | 10/03/2019 | |
| 20 Maujer St, Brooklyn | 17,800 | 12/09/1988 | |
| 38 Maujer St, Brooklyn | 1,875 | 07/25/2019 | |
| 318 Union Ave, Brooklyn | 5,500 | 06/27/1995 | |
| 16 Maujer St, Brooklyn | 12,994 | 08/06/1993 | |
| 221 Maujer St, Brooklyn | 2,208 | 05/31/2011 | $762,500 |
| 439 Lorimer St, Brooklyn | 880 | 04/26/2005 | $381,250 |
| 219 Maujer St, Brooklyn | 4,350 | 01/19/2000 | |
| 40 Maujer St, Brooklyn | 4,624 | 06/16/2014 | |
| 435 Lorimer St, Brooklyn | 3,000 | 06/03/1988 | |
| 233 Maujer St, Brooklyn | 2,480 | 02/23/2018 | $1,600,000 |
| 118 Bushwick Ave, Brooklyn | 3,900 | 09/13/1996 | |
| 42 Maujer St, Brooklyn | 4,624 | 06/16/2014 | |
| 213 Maujer St, Brooklyn | 5,876 | 11/13/2013 | $13,400,000 |
| 229 Maujer St, Brooklyn | 3,863 | 03/11/2003 | $310,000 |
| 231 Maujer St, Brooklyn | 4,960 | 10/01/1992 |
