21 Prospect Ave
Patchogue, NY 11772
— ba 1,120 sqft Built 1934 Lot 6,098 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 | $1,100 | $300 | $1,400 | $8,446 |
| 2024 | $1,100 | $300 | $1,400 | $8,121 |
| 2023 | $1,100 | $300 | $1,400 | $5,431 |
| 2022 | $1,100 | $300 | $1,400 | $7,705 |
| 2021 | $1,100 | $300 | $1,400 | $7,554 |
| 2020 | $1,100 | $300 | $1,400 | $7,518 |
| 2018 | $1,100 | $300 | $1,400 | $5,000 |
| 2017 | $1,100 | $300 | $1,400 | $4,824 |
| 2016 | $1,100 | $300 | $1,400 | $4,707 |
| 2015 | $1,100 | $300 | $1,400 | $4,631 |
| 2014 | $1,100 | $300 | $1,400 | $4,536 |
| 2013 | $1,100 | $300 | $1,400 | $4,487 |
| 2012 | $1,100 | $300 | $1,400 | $4,370 |
| 2011 | $1,100 | $300 | $1,400 | $4,256 |
| 2010 | $1,100 | $300 | $1,400 | $4,100 |
| 2008 | $1,100 | $300 | $1,400 | $3,791 |
| 2007 | $1,100 | $300 | $1,400 | $3,550 |
| 2006 | $1,100 | $300 | $1,400 | $3,260 |
Property facts
Year built
1934
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
1,120 sqft
Lot size
6,098 sqft
ZIP code
11772
City
Patchogue
Street
Prospect Ave
Coordinates
40.76196, -73.02976
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Prospect Ave last sell?
No public-record sale is on file for 21 Prospect Ave.
What is the current tax assessment for 21 Prospect Ave?
The most recent total assessment for 21 Prospect Ave (year 2025) is $1,400 with $8,446 in property tax.
When was 21 Prospect Ave built?
21 Prospect Ave was built in 1934.
How does 21 Prospect Ave compare to others on Prospect Ave?
We track 8 other properties on Prospect Ave. Browse the list under "Other properties on Prospect Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Prospect Ave?
21 Prospect Ave is a — bath, 1,120 sqft, 6,098 sqft lot single_family.
Is 21 Prospect Ave a flip candidate?
No — 21 Prospect Ave does not appear in our flips dataset.
Is 21 Prospect Ave a tax-appeal candidate?
No — 21 Prospect 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
+0.6%
Implied 1-yr
+2.5%
2026 Q3
$564.6K
2026 Q4
$568K
ZIP 11772 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Prospect Ave