21 Kellar Ave
Rotterdam, NY 12306
3 bd 1 ba 1,140 sqft Built 1959 Lot 19,602 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 | $116,200 | $33,800 | $150,000 | $5,567 |
| 2024 | $116,200 | $33,800 | $150,000 | $4,916 |
| 2023 | $116,200 | $33,800 | $150,000 | $6,117 |
| 2022 | $116,200 | $33,800 | $150,000 | $6,232 |
| 2021 | $116,200 | $33,800 | $150,000 | $6,608 |
| 2020 | $116,200 | $33,800 | $150,000 | $4,812 |
| 2018 | $116,200 | $33,800 | $150,000 | $3,067 |
| 2016 | $116,200 | $33,800 | $150,000 | $4,621 |
| 2015 | $116,200 | $33,800 | $150,000 | $4,497 |
| 2014 | $91,900 | $58,100 | $150,000 | $5,816 |
| 2013 | $91,900 | $58,100 | $150,000 | $5,424 |
| 2012 | $91,900 | $58,100 | $150,000 | $4,466 |
| 2011 | $91,900 | $58,100 | $150,000 | $3,478 |
| 2010 | $91,900 | $58,100 | $150,000 | $3,483 |
Property facts
Year built
1959
Property type
single_family
Stories
1
Beds
3
Baths
1
Living area
1,140 sqft
Lot size
19,602 sqft
ZIP code
12306
City
Rotterdam
Street
Kellar Ave
Coordinates
42.78840, -73.99923
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Kellar Ave last sell?
No public-record sale is on file for 21 Kellar Ave.
What is the current tax assessment for 21 Kellar Ave?
The most recent total assessment for 21 Kellar Ave (year 2025) is $150,000 with $5,567 in property tax.
When was 21 Kellar Ave built?
21 Kellar Ave was built in 1959.
How does 21 Kellar Ave compare to others on Kellar Ave?
We track 8 other properties on Kellar Ave. Browse the list under "Other properties on Kellar Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Kellar Ave?
21 Kellar Ave is a 3 bed, 1 bath, 1,140 sqft, 19,602 sqft lot single_family.
Is 21 Kellar Ave a flip candidate?
No — 21 Kellar Ave does not appear in our flips dataset.
Is 21 Kellar Ave a tax-appeal candidate?
No — 21 Kellar 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
+3.2%
Implied 1-yr
+12.8%
2026 Q3
$377.3K
2026 Q4
$387.3K
ZIP 12306 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Kellar Ave