12 Mountainside Ave
Mahwah, NJ 07430
— ba 1,104 sqft Built 1950 Lot 13,068 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 | $85,500 | $235,500 | $321,000 | $6,827 |
| 2024 | $85,500 | $235,500 | $321,000 | $6,625 |
| 2023 | $85,500 | $235,500 | $321,000 | $6,538 |
| 2022 | $85,500 | $235,500 | $321,000 | $6,330 |
| 2021 | $85,500 | $235,500 | $321,000 | $6,262 |
| 2020 | $85,500 | $235,500 | $321,000 | $6,111 |
| 2019 | $85,500 | $235,500 | $321,000 | $5,909 |
| 2018 | $85,500 | $235,500 | $321,000 | $5,826 |
| 2017 | $85,500 | $235,500 | $321,000 | $5,733 |
| 2016 | $85,500 | $235,500 | $321,000 | $5,607 |
| 2015 | $85,500 | $235,500 | $321,000 | $5,530 |
| 2014 | $85,500 | $235,500 | $321,000 | $5,437 |
| 2013 | $85,500 | $235,500 | $321,000 | $5,341 |
| 2012 | $85,500 | $235,500 | $321,000 | $5,219 |
| 2010 | $85,500 | $235,500 | $321,000 | $3,304 |
| 2009 | $71,800 | $83,800 | $155,600 | $3,210 |
| 2008 | $71,800 | $83,800 | $155,600 | $3,074 |
| 2007 | $71,800 | $83,800 | $155,600 | $2,956 |
Property facts
Year built
1950
Property type
single_family
Stories
1
Beds
—
Baths
—
Living area
1,104 sqft
Lot size
13,068 sqft
ZIP code
07430
City
Mahwah
Street
Mountainside Ave
Coordinates
41.10086, -74.16774
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 12 Mountainside Ave last sell?
No public-record sale is on file for 12 Mountainside Ave.
What is the current tax assessment for 12 Mountainside Ave?
The most recent total assessment for 12 Mountainside Ave (year 2025) is $321,000 with $6,827 in property tax.
When was 12 Mountainside Ave built?
12 Mountainside Ave was built in 1950.
How does 12 Mountainside Ave compare to others on Mountainside Ave?
We track 4 other properties on Mountainside Ave. Browse the list under "Other properties on Mountainside Ave" to compare beds, baths, and sale history.
What are the property facts for 12 Mountainside Ave?
12 Mountainside Ave is a — bath, 1,104 sqft, 13,068 sqft lot single_family.
Is 12 Mountainside Ave a flip candidate?
No — 12 Mountainside Ave does not appear in our flips dataset.
Is 12 Mountainside Ave a tax-appeal candidate?
No — 12 Mountainside 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 Mountainside Ave