171 Riverside Ave
Mastic Beach, NY 11951
4 bd 3 ba 1,988 sqft Built 1946 Lot 28,750 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,790 | $300 | $2,090 | $7,980 |
| 2024 | $1,790 | $300 | $2,090 | $7,536 |
| 2023 | $1,790 | $300 | $2,090 | $8,290 |
| 2022 | $1,790 | $300 | $2,090 | $8,499 |
| 2021 | $1,790 | $300 | $2,090 | $8,414 |
| 2020 | $1,790 | $300 | $2,090 | $8,236 |
| 2018 | $1,790 | $300 | $2,090 | $8,202 |
| 2017 | $1,790 | $300 | $2,090 | $8,061 |
| 2016 | $1,790 | $300 | $2,090 | $7,223 |
| 2015 | $1,790 | $300 | $2,090 | $7,043 |
| 2014 | $1,990 | $300 | $2,290 | $7,591 |
| 2013 | $1,990 | $300 | $2,290 | $7,418 |
| 2012 | $1,990 | $300 | $2,290 | $7,200 |
| 2011 | $1,990 | $300 | $2,290 | $7,034 |
| 2010 | $1,950 | $300 | $2,250 | $7,106 |
| 2008 | $2,150 | $300 | $2,450 | $7,281 |
| 2007 | $2,150 | $300 | $2,450 | $6,825 |
| 2006 | $2,500 | $300 | $2,800 | $7,363 |
Property facts
Year built
1946
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
1,988 sqft
Lot size
28,750 sqft
ZIP code
11951
City
Mastic Beach
Street
Riverside Ave
Coordinates
40.78618, -72.84493
Comparable properties nearby
Frequently asked questions
When did 171 Riverside Ave last sell?
No public-record sale is on file for 171 Riverside Ave.
What is the current tax assessment for 171 Riverside Ave?
The most recent total assessment for 171 Riverside Ave (year 2025) is $2,090 with $7,980 in property tax.
When was 171 Riverside Ave built?
171 Riverside Ave was built in 1946.
How does 171 Riverside Ave compare to others on Riverside Ave?
We track 8 other properties on Riverside Ave. Browse the list under "Other properties on Riverside Ave" to compare beds, baths, and sale history.
What are the property facts for 171 Riverside Ave?
171 Riverside Ave is a 4 bed, 3 bath, 1,988 sqft, 28,750 sqft lot single_family.
Is 171 Riverside Ave a flip candidate?
No — 171 Riverside Ave does not appear in our flips dataset.
Is 171 Riverside Ave a tax-appeal candidate?
No — 171 Riverside Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.2%
Implied 1-yr
+8.8%
2026 Q2
$434.2K
2026 Q3
$442.6K
ZIP 11951 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Riverside Ave