21 Mountainside Rd is a 1,188 square foot house on a 4,312 square foot lot. - it last sold on April 23, 2001 for $130,000. Based on Redfin's West Milford data, we estimate the home's value is $382,258.
Single-familyProperty Type
1955Year Built
4,312 sq ftLot Size
$322Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$382,258
$252K since sold in April 2001$14K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17.1% lower than the average sale price ($461K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
LR
Lakeside Residential District
The Lakeside Residential LR District is created to develop meaningful and appropriate residential standards in the lake communities of the Township. The intent is to respect the existing development patterns of the lake communities, but to encourage an upgrading in lot sizes. This approach addresses the Township studies, which suggest future water and sewer problems in these areas if current development trends are continued. Advanced technologies, including alternate design, septic systems, and low flow water devices, as approved by the Township Departments of Planning and Building and Health are to be encouraged.
Property details
Exterior
Property Information
Living Sq. Ft: 1,188
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,312
Legal Lot Number: 1
Legal Block Number: 10707
Municipality Name: WEST MILFORD TWP
Acres: 0.099
State Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2026
Tax District County: WEST MILFORD TWP
Public facts
Beds: —
Baths: —
Sq. Ft.: 1,188
Stories: —
Lot Size: 4,312 square feet
Style: Single Family Residential
Year Built: 1955
Year Renovated: —
County: Passaic County
APN: 1510707 00001
Home facts updated by county records on Sep 19, 2026
Around this home
Schools
Maple Road Elementary School
Public PreK-5 • Assigned • 1.1mi
6/10
MacOpin Middle School
Public 6-8 • Assigned • 0.7mi
4/10
West Milford High School
Public 9-12 • Assigned • 0.7mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
4/10 Heat Factor
7 days above 95° expected this year, 15 days in 30 years
4/10 Wind Factor
23% chance of strong winds in next 30 years
2/10 Air Factor
2 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
West Milford, NJ • 07480
Average low and high temperatures (°F)
31
19
35
21
52
33
61
41
68
51
78
61
84
67
78
59
73
55
64
44
51
36
37
23
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Sun exposure
In this area, properties receive around 8.5 hours in
June and 4 hours in December, placing it below the
U.S. average for solar exposure.
8.5 hrs
4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$364,000 – $440,000
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