| Primary address | 21 William Street, South River |
| Zip code | 08882 |
| County | Middlesex |
| Municipality | South River Borough |
| Block | 39 |
| Lot | 4.01 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 09/30/2019 |
| Sale price | $375,000 |
| Arm's length | Register |
| Property tax | $7,620 |
| Building sqft | 2,710 |
| Building class | Residential (2) |
| Acreage | 0.092 |
| Year built | 1926 |
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:
21 William Street, South River, NJ 08882 was built in 1926 and has a total of 2,710 square feet.
What is the assessed value of 21 William Street, South River, NJ 08882 and the property tax paid?Assessed at $285,500, the tax amount paid for 21 William Street, South River, NJ 08882 is $7,619.
When was 21 William Street, South River, NJ 08882 last sold and what was the last sale price?21 William Street, South River, NJ 08882 was last sold in 09/30/2019 for $375,000.
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 21 William Street, South River, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 09/30/2019 | $375,000 | Register | Register |
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 21 William Street, South River, NJ 08882. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025 |
| Property tax | $7,620 |
| Market value | $285,500 |
Here's the assessment & property tax history for 21 William Street, South River, 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 | $285,500 | $285,500 | 2.669 | $7,620 | +4.79% |
| 2024 | $285,500 | $285,500 | 2.547 | $7,272 | +3.08% |
| 2023 | $285,500 | $285,500 | 2.471 | $7,055 | +1.77% |
| 2022 | $285,500 | $285,500 | 2.428 | $6,932 | +3.89% |
| 2021 | $285,500 | $285,500 | 2.337 | $6,672 | +2.19% |
Create a free account to unlock extended information for 21 William Street, South River, 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 21 William Street, South River 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 (miles) |
|---|---|---|---|---|---|
| Darul Arqam School | NR | Private | PK-12 | 251 | 0.22 |
| Darul Arqam School | NR | Private | PK-12 | 251 | 0.22 |
| St. Marys of Ostrabrama | NR | Private | PK, K-1 | 0 | 0.54 |
| St. Marys of Ostrabrama | NR | Private | PK, K-1 | 0 | 0.54 |
| Pillars Preparatory Academy | NR | Private | PK, K-12 | 0 | 0.56 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| Darul Arqam School | NR | Private | PK-12 | 251 | 0.22 |
| Pillars Preparatory Academy | NR | Private | PK, K-12 | 0 | 0.56 |
| South River Middle School | 3 | Public | 6-8 | 530 | 0.95 |
| Corpus Christi Elementary School | NR | Private | PK, K-8 | 0 | 1.20 |
| Churchill Junior High School | 6 | Public | 7-9 | 2,002 | 1.34 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| Darul Arqam School | NR | Private | PK-12 | 251 | 0.22 |
| Pillars Preparatory Academy | NR | Private | PK, K-12 | 0 | 0.56 |
| Moshe Aaron Yeshiva High School | NR | Private | 9-12 | 0 | 0.58 |
| South River High School | 3 | Public | 9-12 | 762 | 1.04 |
| East Brunswick High School | 7 | Public | 10-12 | 2,036 | 1.64 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 William Street, South River.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 15 Grant St, South River | 2,004 | ||
| 16 Veterans Dr, South River | 2,964 | 05/19/2017 | $556,000 |
| 9 Ivan Way, South River | 2,880 | ||
| 93 James St, South River | 1,672 | ||
| 156 Old Bridge Tpke, South River | 2,284 | 07/23/2021 | $325,000 |
| 12 Veterans Dr, South River | 3,050 | ||
| 39 Hollander St, South River | 2,844 | 05/22/2021 | $1 |
| 21 Hollander St, South River | 1,668 | ||
| 490 Old Bridge Tpke, South River | 5,916 | ||
| 10 Marie St, South River | 2,004 | 05/14/2019 | $340,000 |
| 198 Prospect St, South River | 2,774 | 07/15/2025 | $1 |
| 200 Prospect St, South River | 1,815 | 09/14/1992 | $113,000 |
| 41 Hollander St, South River | 3,952 | 07/23/2003 | $240,000 |
| 8 Veterans Dr, South River | 2,922 | ||
| 7 Rubin St, South River | 2,394 | ||
| 13 Grant St, South River | 2,122 | ||
| 13 Henry St, South River | 1,372 | ||
| 152 Old Bridge Tpke, South River | 1,952 | 05/30/2018 | $389,000 |
| 4 Veterans Dr, South River | 2,922 | ||
| 192 Prospect St, South River | 1,104 |