99 Washington St
East Islip, NY 11730
— ba 2,273 sqft Built 1972 Lot 10,890 sqft multi_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 | $31,300 | $8,800 | $40,100 | $12,551 |
| 2024 | $31,300 | $8,800 | $40,100 | $12,154 |
| 2023 | $31,300 | $8,800 | $40,100 | $12,154 |
| 2022 | $31,300 | $8,800 | $40,100 | $12,278 |
| 2021 | $31,300 | $8,800 | $40,100 | $5,630 |
| 2020 | $31,300 | $8,800 | $40,100 | $11,139 |
| 2018 | $31,300 | $8,800 | $40,100 | $10,970 |
| 2017 | $31,300 | $8,800 | $40,100 | $10,924 |
| 2016 | $31,300 | $8,800 | $40,100 | $10,977 |
| 2015 | $31,300 | $8,800 | $40,100 | $11,194 |
| 2014 | $31,300 | $8,800 | $40,100 | $11,263 |
| 2013 | $31,300 | $8,800 | $40,100 | $11,120 |
| 2012 | $31,300 | $8,800 | $40,100 | $10,708 |
| 2011 | $31,300 | $8,800 | $40,100 | $10,264 |
| 2010 | $31,300 | $8,800 | $40,100 | $9,736 |
| 2008 | $31,300 | $8,800 | $40,100 | $9,464 |
| 2007 | $31,300 | $8,800 | $40,100 | $8,879 |
Property facts
Year built
1972
Property type
multi_family
Stories
—
Beds
—
Baths
—
Living area
2,273 sqft
Lot size
10,890 sqft
ZIP code
11730
City
East Islip
Street
Washington St
Coordinates
40.73929, -73.18133
Comparable properties nearby
Frequently asked questions
When did 99 Washington St last sell?
No public-record sale is on file for 99 Washington St.
What is the current tax assessment for 99 Washington St?
The most recent total assessment for 99 Washington St (year 2025) is $40,100 with $12,551 in property tax.
When was 99 Washington St built?
99 Washington St was built in 1972.
How does 99 Washington St compare to others on Washington St?
We track 5 other properties on Washington St. Browse the list under "Other properties on Washington St" to compare beds, baths, and sale history.
What are the property facts for 99 Washington St?
99 Washington St is a — bath, 2,273 sqft, 10,890 sqft lot multi_family.
Is 99 Washington St a flip candidate?
No — 99 Washington St does not appear in our flips dataset.
Is 99 Washington St a tax-appeal candidate?
No — 99 Washington St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.1%
Implied 1-yr
+8.4%
2026 Q3
$806.5K
2026 Q4
$821.5K
ZIP 11730 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Washington St