| Primary address | 309 Rock Avenue, Dunellen |
| Zip code | 08812 |
| County | Somerset |
| Municipality | Green Brook Township |
| Block | 84 |
| Lot | 11.02 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 06/05/2012 |
| Sale price | $1 |
| Arm's length | Register |
| Property tax | $9,985 |
| Building sqft | 1,473 |
| Building class | Not Categorized (999) |
| Acreage | 0.424 |
| Year built | 1935 |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
309 Rock Avenue, Dunellen, NJ 08812 was built in 1935 and has a total of 1,473 square feet.
What is the assessed value of 309 Rock Avenue, Dunellen, NJ 08812 and the property tax paid?Assessed at $469,900, the tax amount paid for 309 Rock Avenue, Dunellen, NJ 08812 is $9,985.
When was 309 Rock Avenue, Dunellen, NJ 08812 last sold and what was the last sale price?309 Rock Avenue, Dunellen, NJ 08812 was last sold in 06/05/2012 for $1.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 309 Rock Avenue, Dunellen, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 309 Rock Avenue, Dunellen, NJ 08812. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025 |
| Property tax | $9,985 |
| Market value | $469,900 |
Here's the assessment & property tax history for 309 Rock Avenue, Dunellen, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|---|
| 2025 | $469,900 | $469,900 | 2.125 | $9,985 | +26.76% |
| 2024 | $355,800 | $355,800 | 2.214 | $7,877 | -3.74% |
| 2023 | $355,800 | $355,800 | 2.3 | $8,183 | -2.25% |
| 2022 | $355,800 | $355,800 | 2.353 | $8,372 | -7.62% |
| 2021 | $355,800 | $355,800 | 2.547 | $9,062 | -2.86% |
Create a free account to unlock extended information for 309 Rock Avenue, Dunellen, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
| Fire hazard zone | See more on map |
| Geohazard zones map | Register |
Access the detailed traffic volume map for 309 Rock Avenue, Dunellen 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 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Green Brook Middle School | 6 | Public | 5-8 | 346 | 0.41 |
| West End Elementary School | 2 | Public | PK, K-4 | 542 | 0.81 |
| West End Elementary School | 2 | Public | PK, K-4 | 542 | 0.81 |
| Jefferson Elementary School | 2 | Public | PK, K-5 | 441 | 0.93 |
| Jefferson Elementary School | 2 | Public | PK, K-5 | 441 | 0.93 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Green Brook Middle School | 6 | Public | 5-8 | 346 | 0.41 |
| Plainfield Academy for the Arts & Advanced Studies | 5 | Public | 7-12 | 356 | 0.93 |
| Lincoln Middle School | 3 | Public | 6-8 | 303 | 1.21 |
| North Plainfield Middle School | 4 | Public | 7-8 | 489 | 1.57 |
| New Life Christian School | NR | Private | PK, K-9 | 0 | 1.69 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Plainfield Academy for the Arts & Advanced Studies | 5 | Public | 7-12 | 356 | 0.93 |
| Dunellen High School | 3 | Public | 9-12 | 389 | 1.20 |
| North Plainfield High School | 2 | Public | 9-12 | 1,214 | 1.57 |
| Queen City Academy Charter School | 6 | Charter | K-12 | 403 | 1.83 |
| Union County Teams Charter School | 3 | Charter | K-12 | 334 | 2.01 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 309 Rock Avenue, Dunellen.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 22 Rear Greenbrook Rd, Dunellen | |||
| 26 A Greenbrook Rd, Dunellen | |||
| 36 Greenbrook Rd, Dunellen | 852 | 09/24/2018 | $253,000 |
| 29-39 Route 22 E, Dunellen | 10/22/2021 | $3,000,000 | |
| 41-43 Route 22 E, Dunellen | 10/22/2021 | $3,000,000 | |
| 45 Route 22 E, Dunellen | 9,173 | 04/20/2004 | $750,000 |
| 47 Route 22 E, Dunellen | 06/16/2023 | $550,000 | |
| 51-55 Route 22 E, Dunellen | 02/14/2013 | $1 | |
| 32 Greenbrook Rd, Dunellen | 2,568 | 09/03/1992 | $179,000 |
| 26 Greenbrook Rd, Dunellen | 05/22/2013 | $1 | |
| 34 Greenbrook Rd, Dunellen | 962 | 12/10/2008 | $280,000 |
| 15-19 Route 22 E, Dunellen | 10,000 | 10/22/2001 | $1,405,000 |
| 24 Greenbrook Rd, Dunellen | 04/19/2013 | $1 | |
| 303 Rock Ave, Dunellen | 12/21/2009 | $9,000,000 | |
| 22 Greenbrook Rd, Dunellen | 04/19/2013 | $1 | |
| 25 Route 22 E, Dunellen | 7,430 | 02/03/2015 | $900,000 |
| 49 Route 22 E, Dunellen | 1,080 | 06/22/2023 | $450,000 |
| 57-71 Route 22 E, Dunellen | 8,302 | 06/28/2012 | $2,100,000 |
| 30 Greenbrook Rd, Dunellen | 1,706 | 12/31/1980 | $85,000 |
| 21 Route 22 E, Dunellen | 6,017 | 12/14/1973 |