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Single Family ResidenceResidential
$290,045$310 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $11,500 on Oct 3, 2017

21 MOUNTAINSIDE DR

SUSSEX, NJ 07461
0
Baths
936 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.

Valuation

$290K
$267K low$313K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$11,500 · Oct 3, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,851 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$249,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$156,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$92,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$249,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$249,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySUSSEX
Lot (acres)The size of the land the home sits on, from county records.0.16
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Glen Meadow Middle SchoolC+
Middle · Grades 7–8 · 2.1 mi
E
Walnut Ridge Primary School
Elementary · Grades PK–1 · 2.2 mi
H
Vernon Township High SchoolC+
High · Grades 9–12 · 2.4 mi

District: Vernon Township School District

Neighborhood · ZIP 07461These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.83

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.86%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.18,609
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.223 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$102,288
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,413
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

21 Mountainside Dr measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 86% of homes in Sussex 07461
  • Costs more per square foot than 81% of homes in Sussex 07461
  • Smaller than 92% of homes in Sussex 07461
  • Has a smaller lot than 89% of homes in Sussex 07461
  • Older than 87% of homes in Sussex 07461

What homes are worth in Sussex 07461

Each bar is how many homes fall in that price range. The marker is this home.

This home
$210K$733K

This home is worth more than 14% of homes in Sussex 07461.

How it measures up in Sussex 07461

The dot is this home. The mark in the middle is the typical home in Sussex 07461.

Estimated value$290,045
CheaperTypical $429,157Pricier

Pricier than 14% of homes nearby

Price per ft²$310
CheaperTypical $253Pricier

Pricier than 81% of homes nearby

Living area936 ft²
SmallerTypical 1,840 ft²Bigger

Bigger than 8% of homes nearby

Lot size0.16 ac
SmallerTypical 0.95 acBigger

Bigger than 11% of homes nearby

Year built1940
OlderTypical 1976Newer

Newer than 13% of homes nearby

How 21 Mountainside Dr ranks against every home in each area.
MeasureThis homeSussex 07461Sussex County
Estimated valuepricier than$290,04514% of homes16% of homes
Price per ft²pricier than$31081% of homes66% of homes
Living areabigger than936 ft²8% of homes13% of homes
Lot sizebigger than0.16 ac11% of homes21% of homes
Year builtnewer than194013% of homes15% of homes

About 21 Mountainside Dr

How much is 21 Mountainside Dr, Sussex, NJ worth?

The TopHap Estimate for 21 Mountainside Dr, Sussex, NJ is $290,045 as of Sep 24, 2026. The likely range is $266,938 to $313,152. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Mountainside Dr, Sussex, NJ last sell?

21 Mountainside Dr, Sussex, NJ last sold on Oct 3, 2017 for $11,500, according to the county's recorded deed.

How big is 21 Mountainside Dr, Sussex, NJ?

21 Mountainside Dr, Sussex, NJ has 936 square feet of living space and a 0.16-acre lot.

When was 21 Mountainside Dr, Sussex, NJ built?

21 Mountainside Dr, Sussex, NJ was built in 1940, making it 86 years old.

What schools serve 21 Mountainside Dr, Sussex, NJ?

21 Mountainside Dr, Sussex, NJ is assigned to Glen Meadow Middle School (middle), rated C+; Walnut Ridge Primary School (elementary); Vernon Township High School (high), rated C+. All sit in Vernon Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Mountainside Dr, Sussex, NJ compare to other homes in Sussex 07461?

Among the 7,047 homes in Sussex 07461, it is worth more than 14% of them ($290,045 against a typical $429,157), its price per square foot is higher than 81% of them ($310 against a typical $253), it is bigger than 8% of them (936 ft² against a typical 1,840 ft²), its lot is bigger than 11% of them (0.16 ac against a typical 0.95 ac) and it is newer than 13% of them (1940 against a typical 1976). Measured against all of Sussex County, it is worth more than 16% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21 Mountainside Dr, Sussex, NJ?

The 2025 property tax bill for 21 Mountainside Dr, Sussex, NJ was $5,851. The county assessed it at $249,500.

More homes on Mountainside Dr

Closest homes

More homes in Sussex 07461

Assigned schools

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