| Primary address | 858 Union Avenue, Riverhead |
| Zip code | 11901 |
| County | Suffolk |
| Municipality | Riverhead |
| Parcel ID | 66-1-18 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $11,333 |
| Building sqft | 2,696 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.92 |
| Frontage | 150 |
| Depth | 267 |
| Year built | 1920 |
| Year last altered | 1984 |
| Stories | 2 |
| Rooms | 10 |
| Bedrooms | 5 |
| Bathrooms | 1 |
| Zoning district | Register |
| School district | Riverhead |
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:
858 Union Avenue, Riverhead, NY 11901 was built in 1920 and has a total of 2,696 square feet.
What is the assessed value of 858 Union Avenue, Riverhead, NY 11901 and the property tax paid?Assessed at $57,900, the tax amount paid for 858 Union Avenue, Riverhead, NY 11901 is $11,895.
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 858 Union Avenue, Riverhead, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 858 Union Avenue, Riverhead, NY 11901. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $11,895 |
| Current property tax | $11,333 |
| Market value | $709,559 |
| Assessed value | $57,900 |
Here's the assessment & property tax history for 858 Union Avenue, Riverhead, 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 |
|---|---|---|---|---|---|
| 2025-2026 | $709,559 | $57,900 | 205.4452 | $11,895 | +6.41% |
| 2024-2025 | $694,245 | $57,900 | 193.0705 | $11,179 | +5.97% |
| 2023-2024 | $623,250 | $57,900 | 182.1973 | $10,549 | +0.36% |
| 2022-2023 | $571,006 | $57,900 | 181.537 | $10,511 | -0.85% |
| 2021-2022 | $490,677 | $57,900 | 183.085 | $10,601 | +2.94% |
The complete history of permits filed for 858 Union Avenue, Riverhead, 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 Riverhead so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Riverhead and compare it to other neighborhoods in Suffolk County.
Create a free account to unlock extended information for 858 Union Avenue, Riverhead, 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) |
Access the detailed traffic volume map for 858 Union Avenue, Riverhead 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) |
|---|---|---|---|---|---|
| Peconic Community School | NR | Private | PK-6 | 60 | 0.50 |
| Peconic Community School | NR | Private | PK-6 | 60 | 0.50 |
| Our Redeemer Lutheran School of Aquebogue | NR | Private | PK, K-6 | 29 | 0.54 |
| Our Redeemer Lutheran School of Aquebogue | NR | Private | PK, K-6 | 29 | 0.54 |
| Aquebogue Elementary School | 5 | Public | K-5 | 474 | 0.60 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| East End Christian Academy | NR | Private | PK, K-9 | 0 | 1.47 |
| Bishop Mcgann-Mercy Diocesan High School | NR | Private | 7-12 | 481 | 2.04 |
| Riverhead Middle School | 3 | Public | 6-8 | 827 | 2.39 |
| St Isidore School | NR | Private | PK-8 | 133 | 2.62 |
| St John Paul II Regional School | NR | Private | PK-8 | 130 | 2.62 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| Bishop Mcgann-Mercy Diocesan High School | NR | Private | 7-12 | 481 | 2.04 |
| Riverhead Senior High School | 3 | Public | 9-12 | 2,001 | 2.39 |
| Suffolk County Sheriffs Office | NR | Public | 12 | 7 | 4.00 |
| Riverhead Charter School | 6 | Charter | K-11 | 823 | 5.75 |
| Mattituck Junior Senior High School | 6 | Public | 7-12 | 548 | 6.64 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 858 Union Avenue, Riverhead.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 83 Colonial Dr, Riverhead | 1,615 | 10/16/2007 | $1 |
| 1212 Northville Tpke, Riverhead | 990 | 02/19/2020 | $345,000 |
| 949 Main Rd, Riverhead | 2,952 | 07/19/1999 | $150,000 |
| 952 Main Rd, Riverhead | 2,596 | 12/02/2013 | $1 |
| 918 Main Rd, Riverhead | 1,592 | 09/16/2021 | $495,000 |
| 294 West Ln, Riverhead | 1,269 | 01/02/2019 | $1 |
| 965 Main Rd, Laurel | 1,680 | 10/03/2022 | $1 |
| 181 West Ln, Riverhead | 1,242 | ||
| 926 Main Rd, Riverhead | 1,350 | 06/30/2005 | $1 |
| 921 Main Rd, Riverhead | 1,342 | 08/24/2000 | $122,500 |
| 101 Colonial Dr, Riverhead | 2,185 | 12/03/2001 | $399,500 |
| 209 West Ln, Riverhead | 1,560 | 10/01/1999 | $110,000 |
| 195 West Ln, Riverhead | 1,979 | 12/14/2023 | $615,000 |
| 576 Main Rd, Laurel | 03/07/2025 | $700,000 | |
| 5 Southfields Rd, Riverhead | 1,406 | 07/29/2002 | $339,000 |
| 913 Main Rd, Riverhead | 1,161 | 09/25/2020 | $300,000 |
| 217 West Ln, Riverhead | 1,431 | 08/03/2012 | $272,500 |
| 177 West Ln, Riverhead | 1,536 | 03/18/2016 | $1 |
| 914 Main Rd, Riverhead | 1,231 | 12/22/2005 | $418,700 |
| 908 Main Rd, Riverhead | 1,326 | 10/13/2015 | $270,000 |