21 Prospect St
Unionville, NY 10988
4 bd 2 ba 2,056 sqft Built 1867 Lot 33,909 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 | $64,100 | $24,900 | $89,000 | $6,585 |
| 2024 | $64,100 | $24,900 | $89,000 | $6,858 |
| 2023 | $64,100 | $24,900 | $89,000 | $6,841 |
| 2022 | $64,100 | $24,900 | $89,000 | $6,739 |
| 2021 | $64,100 | $24,900 | $89,000 | $6,640 |
| 2020 | $64,100 | $24,900 | $89,000 | $5,896 |
| 2017 | $64,100 | $24,900 | $89,000 | $5,605 |
| 2016 | $64,100 | $24,900 | $89,000 | $6,392 |
| 2015 | $64,100 | $24,900 | $89,000 | $6,523 |
| 2014 | $64,100 | $24,900 | $89,000 | $6,353 |
| 2013 | $64,100 | $24,900 | $89,000 | $6,204 |
| 2012 | $64,100 | $24,900 | $89,000 | $5,431 |
| 2011 | $64,100 | $24,900 | $89,000 | $5,868 |
| 2010 | $64,100 | $24,900 | $89,000 | $5,495 |
| 2009 | $64,100 | $24,900 | $89,000 | $111,013 |
| 2007 | $64,100 | $24,900 | $89,000 | $1,012 |
Property facts
Year built
1867
Property type
single_family
Stories
2
Beds
4
Baths
2
Living area
2,056 sqft
Lot size
33,909 sqft
ZIP code
10988
City
Unionville
Street
Prospect St
Coordinates
41.30075, -74.56372
Comparable properties nearby
Frequently asked questions
When did 21 Prospect St last sell?
No public-record sale is on file for 21 Prospect St.
What is the current tax assessment for 21 Prospect St?
The most recent total assessment for 21 Prospect St (year 2025) is $89,000 with $6,585 in property tax.
When was 21 Prospect St built?
21 Prospect St was built in 1867.
How does 21 Prospect St compare to others on Prospect St?
We track 3 other properties on Prospect St. Browse the list under "Other properties on Prospect St" to compare beds, baths, and sale history.
What are the property facts for 21 Prospect St?
21 Prospect St is a 4 bed, 2 bath, 2,056 sqft, 33,909 sqft lot single_family.
Is 21 Prospect St a flip candidate?
No — 21 Prospect St does not appear in our flips dataset.
Is 21 Prospect St a tax-appeal candidate?
No — 21 Prospect 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
+1.7%
Implied 1-yr
+6.6%
2025 Q4
$236.9K
2026 Q1
$240.6K
ZIP 10988 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Prospect St