20 Mountain Ave
Hillburn, NY 10931
3 bd 2 ba 1,900 sqft Built 1980 Lot 9,583 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Feb 22, 2023 | Sold | $505,000 | Public Record |
| Nov 8, 2022 | Sold | $505,000 | OneKeyMLS |
| Jul 19, 2022 | Price changed | $525,000 | MLS #H6194929 |
| Jul 5, 2022 | Listed | $549,000 | MLS #H6194929 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $31,100 | $10,000 | $41,100 | $14,975 |
| 2024 | $31,100 | $10,000 | $41,100 | $12,365 |
| 2023 | $31,100 | $10,000 | $41,100 | $13,778 |
| 2022 | $31,100 | $10,000 | $41,100 | $13,679 |
| 2021 | $31,100 | $10,000 | $41,100 | $12,202 |
| 2020 | $31,100 | $10,000 | $41,100 | $10,034 |
| 2019 | $31,100 | $10,000 | $41,100 | $9,844 |
| 2018 | $31,100 | $10,000 | $41,100 | $11,317 |
| 2017 | $31,100 | $10,000 | $41,100 | $9,393 |
| 2016 | $31,100 | $10,000 | $41,100 | $10,578 |
| 2015 | $31,100 | $10,000 | $41,100 | $10,514 |
| 2014 | $31,100 | $10,000 | $41,100 | $11,624 |
| 2013 | $31,100 | $10,000 | $41,100 | $9,834 |
| 2012 | $31,100 | $10,000 | $41,100 | $9,247 |
| 2010 | $31,100 | $10,000 | $41,100 | $7,476 |
Property facts
Year built
1980
Property type
single_family
Stories
1
Beds
3
Baths
2
Living area
1,900 sqft
Lot size
9,583 sqft
ZIP code
10931
City
Hillburn
Street
Mountain Ave
Coordinates
41.12316, -74.16923
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 20 Mountain Ave last sell?
No public-record sale is on file for 20 Mountain Ave.
What is the current tax assessment for 20 Mountain Ave?
The most recent total assessment for 20 Mountain Ave (year 2025) is $41,100 with $14,975 in property tax.
When was 20 Mountain Ave built?
20 Mountain Ave was built in 1980.
How does 20 Mountain Ave compare to others on Mountain Ave?
We track 7 other properties on Mountain Ave. Browse the list under "Other properties on Mountain Ave" to compare beds, baths, and sale history.
What are the property facts for 20 Mountain Ave?
20 Mountain Ave is a 3 bed, 2 bath, 1,900 sqft, 9,583 sqft lot single_family.
Is 20 Mountain Ave a flip candidate?
No — 20 Mountain Ave does not appear in our flips dataset.
Is 20 Mountain Ave a tax-appeal candidate?
No — 20 Mountain 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
+9.7%
Implied 1-yr
+38.7%
2025 Q2
$631.1K
2025 Q3
$670.9K
ZIP 10931 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Mountain Ave