817 Southside Ave
West Islip, NY 11795
— ba 1,043 sqft Built 1952 Lot 14,810 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 | $25,700 | $8,800 | $34,500 | $10,761 |
| 2024 | $25,700 | $8,800 | $34,500 | $10,294 |
| 2023 | $25,700 | $8,800 | $34,500 | $10,294 |
| 2022 | $25,700 | $8,800 | $34,500 | $15,446 |
| 2021 | $25,700 | $8,800 | $34,500 | $2,949 |
| 2017 | $25,700 | $8,800 | $34,500 | $2,713 |
| 2016 | $25,700 | $8,800 | $34,500 | $3,574 |
| 2015 | $25,700 | $8,800 | $34,500 | $3,139 |
| 2014 | $25,700 | $8,800 | $34,500 | $3,188 |
| 2013 | $25,700 | $8,800 | $34,500 | $3,169 |
| 2012 | $25,700 | $8,800 | $34,500 | $3,650 |
| 2011 | $25,700 | $8,800 | $34,500 | $3,650 |
| 2010 | $25,700 | $8,800 | $34,500 | $5,268 |
| 2008 | $25,700 | $8,800 | $34,500 | $6,027 |
Property facts
Year built
1952
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
1,043 sqft
Lot size
14,810 sqft
ZIP code
11795
City
West Islip
Street
Southside Ave
Coordinates
40.72718, -73.29681
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 817 Southside Ave last sell?
No public-record sale is on file for 817 Southside Ave.
What is the current tax assessment for 817 Southside Ave?
The most recent total assessment for 817 Southside Ave (year 2025) is $34,500 with $10,761 in property tax.
When was 817 Southside Ave built?
817 Southside Ave was built in 1952.
How does 817 Southside Ave compare to others on Southside Ave?
We track 3 other properties on Southside Ave. Browse the list under "Other properties on Southside Ave" to compare beds, baths, and sale history.
What are the property facts for 817 Southside Ave?
817 Southside Ave is a — bath, 1,043 sqft, 14,810 sqft lot single_family.
Is 817 Southside Ave a flip candidate?
No — 817 Southside Ave does not appear in our flips dataset.
Is 817 Southside Ave a tax-appeal candidate?
No — 817 Southside 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
+3.9%
Implied 1-yr
+15.5%
2026 Q2
$1.35M
2026 Q3
$1.35M
ZIP 11795 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Southside Ave