21 Mountainside Rd
Mendham, NJ 07945
— ba 2,506 sqft Built 1972 Lot 131,028 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 | $494,900 | $372,100 | $867,000 | $14,737 |
| 2024 | $437,900 | $363,500 | $801,400 | $14,493 |
| 2023 | $393,600 | $280,500 | $674,100 | $14,081 |
| 2022 | $376,300 | $273,700 | $650,000 | $13,741 |
| 2021 | $293,700 | $359,400 | $653,100 | $14,453 |
| 2020 | $293,700 | $359,400 | $653,100 | $14,361 |
| 2019 | $293,700 | $359,400 | $653,100 | $14,093 |
| 2018 | $286,800 | $359,400 | $646,200 | $13,680 |
| 2017 | $286,800 | $359,400 | $646,200 | $13,363 |
| 2016 | $286,800 | $359,400 | $646,200 | $13,344 |
| 2015 | $286,800 | $359,400 | $646,200 | $13,098 |
| 2014 | $286,800 | $359,400 | $646,200 | $12,801 |
| 2013 | $286,800 | $359,400 | $646,200 | $12,523 |
| 2012 | $286,800 | $359,400 | $646,200 | $12,394 |
| 2011 | $286,800 | $359,400 | $646,200 | $12,284 |
| 2009 | $285,500 | $450,400 | $735,900 | $11,980 |
| 2008 | $285,500 | $450,400 | $735,900 | $11,435 |
| 2007 | $285,500 | $450,400 | $735,900 | $11,995 |
Property facts
Year built
1972
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
2,506 sqft
Lot size
131,028 sqft
ZIP code
07945
City
Mendham
Street
Mountainside Rd
Coordinates
40.79344, -74.59024
Comparable properties nearby
Frequently asked questions
When did 21 Mountainside Rd last sell?
No public-record sale is on file for 21 Mountainside Rd.
What is the current tax assessment for 21 Mountainside Rd?
The most recent total assessment for 21 Mountainside Rd (year 2025) is $867,000 with $14,737 in property tax.
When was 21 Mountainside Rd built?
21 Mountainside Rd was built in 1972.
How does 21 Mountainside Rd compare to others on Mountainside Rd?
We track 8 other properties on Mountainside Rd. Browse the list under "Other properties on Mountainside Rd" to compare beds, baths, and sale history.
What are the property facts for 21 Mountainside Rd?
21 Mountainside Rd is a — bath, 2,506 sqft, 131,028 sqft lot single_family.
Is 21 Mountainside Rd a flip candidate?
No — 21 Mountainside Rd does not appear in our flips dataset.
Is 21 Mountainside Rd a tax-appeal candidate?
No — 21 Mountainside Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+3.6%
Implied 1-yr
+14.4%
2026 Q3
$1.92M
2026 Q4
$1.92M
ZIP 07945 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Mountainside Rd