121 Riverside Avenue, Mastic Beach, NY 11951 Property Information
121 Riverside Avenue, Mastic Beach, NY 11951 Property Information
- General
- Owner
- Documents
- Tax
- Permits
- Neighborhood
Address
| Primary address | 121 Riverside Avenue, Mastic Beach |
| Zip code | 11951 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 939-7-22 |
Sales & Tax Overview for 121 Riverside Avenue, Mastic Beach
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $4,765 |
Lot & Building Information for 121 Riverside Avenue, Mastic Beach
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.33 |
Zoning, Use & Area Overview
| Zoning district | Register |
| School district | William Floyd |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Other Property Data for 121 Riverside Avenue, Mastic Beach
Property reports include comprehensive occupancy, improvement and development information (where available).
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- • Improvements for 121 Riverside Avenue, Mastic Beach , including their type, square footage, grade and when they were built.
- • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 121 Riverside Avenue, Mastic Beach
Ownership Information
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Past Sales & Property History for 121 Riverside Avenue, Mastic Beach
Create a free account to view the complete sales history for 121 Riverside Avenue, Mastic Beach, including title documents, transfer conditions, mortgages and liens.
No recorded sales for this property.
Title Documents for 121 Riverside Avenue, Mastic Beach
Data not available for this property.
Property Taxes for 121 Riverside Avenue, Mastic Beach
Access detailed property tax data for 121 Riverside Avenue, Mastic Beach, NY 11951. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2024-2025 |
| Base tax | $5,746 |
| Current property tax | $4,765 |
| Market value | $298,113 |
| Assessed value | $1,580 |
Assessment History for 121 Riverside Avenue, Mastic Beach
Here's the assessment & property tax history for 121 Riverside Avenue, Mastic Beach, 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 |
|---|---|---|---|---|---|
| 2024-2025 | $298,113 | $1,580 | 363.67 | $5,746 | +2.08% |
| 2023-2024 | $292,593 | $1,580 | 356.252 | $5,629 | -12.23% |
| 2022-2023 | $254,839 | $1,580 | 405.87 | $6,413 | -3.28% |
| 2021-2022 | $213,513 | $1,580 | 419.634 | $6,630 | -20.22% |
| 2020-2021 | $259,740 | $2,000 | 415.528 | $8,311 | +2.62% |
Permits for 121 Riverside Avenue, Mastic Beach
The complete history of permits filed for 121 Riverside Avenue, Mastic Beach, 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.
Data not available for this property.
Risk
Create a free account to unlock extended information for 121 Riverside Avenue, Mastic Beach, 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) | AE, X (See more on map) |
Transportation
Access the detailed traffic volume map for 121 Riverside Avenue, Mastic Beach 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 |
Schools
Nearest elementary schools
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| John S Hobart Elementary School | 3 | Public | K-5 | 798 | 0.76 |
| Nathaniel Woodhull Elementary School | 6 | Public | K-5 | 703 | 0.78 |
| William Floyd Learning Center | NR | Public | K-5 | 68 | 0.93 |
| William Floyd Elementary School | 4 | Public | K-5 | 742 | 0.93 |
| Tangier Smith Elementary School | 5 | Public | K-5 | 755 | 0.98 |
Nearest middle schools
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| William Paca Middle School | 4 | Public | 6-8 | 1,009 | 0.86 |
| William Floyd Middle School | 3 | Public | 6-8 | 1,053 | 2.02 |
| Center Moriches Middle School | 3 | Public | 6-8 | 325 | 2.25 |
| Our Lady Queen Of Apostles Reg Catholic School | NR | Private | PK-8 | 153 | 2.92 |
| Eastport South Manor Junior Senior High School | 5 | Public | 7-12 | 1,530 | 3.30 |
Nearest high schools
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| William Floyd High School | 5 | Public | 9-12 | 3,013 | 0.67 |
| Center Moriches High School | 8 | Public | 9-12 | 556 | 2.25 |
| Eastport South Manor Junior Senior High School | 5 | Public | 7-12 | 1,530 | 3.30 |
| Leonard E Burket Christian School | NR | Private | PK-12 | 77 | 3.43 |
| Bellport Senior High School | 5 | Public | 9-12 | 1,392 | 4.38 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Neighbors for 121 Riverside Avenue, Mastic Beach
Here are the neighbors for 121 Riverside Avenue, Mastic Beach.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 105 Riverside Ave, Mastic Beach | |||
| 101 Riverside Ave, Mastic Beach | |||
| 115 Riverside Ave, Mastic Beach | 11/30/2021 | $462,000 | |
| 631 Mastic Rd, Mastic Beach | 05/25/2021 | $600,000 | |
| 137 Riverside Ave, Mastic Beach | 02/22/2016 | ||
| 103 Riverside Ave, Mastic Beach | 10/01/2019 | $190,000 | |
| 135 Riverside Ave, Mastic Beach | 01/07/2022 | $326,000 | |
| 145 Riverside Ave, Mastic Beach | 08/24/2011 | $305,000 | |
| 151 Riverside Ave, Mastic Beach | 03/10/2022 | $435,000 | |
| 119 Riverside Ave, Mastic Beach | 06/06/2023 | $341,000 | |
| 123 Riverside Ave, Mastic Beach | 06/12/2018 | $232,000 | |
| 125 Riverside Ave, Mastic Beach | |||
| 630 Mastic Rd, Mastic | 12,272 | ||
| 97 Riverside Ave, Mastic Beach | |||
| 111 Riverside Ave, Mastic Beach | 11/30/2021 | $355,000 | |
| 109 Riverside Ave, Mastic Beach | |||
| 93 Riverside Ave, Mastic Beach | 02/02/2023 | $375,000 | |
| 127 Riverside Ave, Mastic Beach | 05/08/2023 | $339,000 | |
| 131 Riverside Ave, Mastic Beach | |||
| 141 Riverside Ave, Mastic Beach | 10/15/2013 |