21 Hillside Ave
Mahwah, NJ 07430
— ba 1,577 sqft Built 1910 Lot 15,002 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 | $130,200 | $320,000 | $450,200 | $9,575 |
| 2024 | $130,200 | $320,000 | $450,200 | $9,292 |
| 2023 | $130,200 | $320,000 | $450,200 | $9,170 |
| 2022 | $130,200 | $320,000 | $450,200 | $8,877 |
| 2021 | $130,200 | $320,000 | $450,200 | $8,783 |
| 2020 | $130,200 | $320,000 | $450,200 | $8,571 |
| 2019 | $130,200 | $320,000 | $450,200 | $8,288 |
| 2018 | $130,200 | $320,000 | $450,200 | $8,171 |
| 2017 | $130,200 | $320,000 | $450,200 | $8,040 |
| 2016 | $130,200 | $320,000 | $450,200 | $7,864 |
| 2015 | $130,200 | $320,000 | $450,200 | $7,756 |
| 2014 | $130,200 | $320,000 | $450,200 | $7,626 |
| 2013 | $130,200 | $320,000 | $450,200 | $7,491 |
| 2012 | $130,200 | $320,000 | $450,200 | $7,320 |
| 2010 | $130,200 | $320,000 | $450,200 | $7,238 |
| 2009 | $106,400 | $234,400 | $340,800 | $7,030 |
| 2008 | $106,400 | $234,400 | $340,800 | $6,734 |
| 2007 | $106,400 | $234,400 | $340,800 | $6,475 |
Property facts
Year built
1910
Property type
single_family
Stories
2
Beds
—
Baths
—
Living area
1,577 sqft
Lot size
15,002 sqft
ZIP code
07430
City
Mahwah
Street
Hillside Ave
Coordinates
41.09302, -74.14294
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Hillside Ave last sell?
No public-record sale is on file for 21 Hillside Ave.
What is the current tax assessment for 21 Hillside Ave?
The most recent total assessment for 21 Hillside Ave (year 2025) is $450,200 with $9,575 in property tax.
When was 21 Hillside Ave built?
21 Hillside Ave was built in 1910.
How does 21 Hillside Ave compare to others on Hillside Ave?
We track 8 other properties on Hillside Ave. Browse the list under "Other properties on Hillside Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Hillside Ave?
21 Hillside Ave is a — bath, 1,577 sqft, 15,002 sqft lot single_family.
Is 21 Hillside Ave a flip candidate?
No — 21 Hillside Ave does not appear in our flips dataset.
Is 21 Hillside Ave a tax-appeal candidate?
No — 21 Hillside 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
+0.4%
Implied 1-yr
+1.8%
2026 Q2
$849.4K
2026 Q3
$853K
ZIP 07430 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Hillside Ave