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Single Family ResidenceResidential
$378,340$519 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

129 MOUNTAINSIDE DR

RANDOLPH, NJ 07869
0
Baths
729 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.
3.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$378K
$338K low$419K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,458 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$192,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$181,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$11,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$192,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$192,800

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.45
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
98
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
47
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMORRIS
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Randolph Middle SchoolB+
Middle · Grades 6–8 · 1.7 mi
H
Randolph High SchoolB
High · Grades 9–12 · 1.8 mi
E
Center Grove SchoolA+
Elementary · Grades PK–5 · 2.1 mi

District: Randolph Township School District

Neighborhood · ZIP 07869These 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.57
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.101

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.26,744
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,309 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$169,203
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$187,859
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.53 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

129 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 98% of homes in Randolph 07869
  • Costs more per square foot than 98% of homes in Randolph 07869
  • Among the smallest homes in Randolph 07869
  • Has a bigger lot than 98% of homes in Randolph 07869
  • Older than 98% of homes in Randolph 07869

What homes are worth in Randolph 07869

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

This home
$389K$1.4M

This home is worth more than 2% of homes in Randolph 07869.

How it measures up in Randolph 07869

The dot is this home. The mark in the middle is the typical home in Randolph 07869.

Estimated value$378,340
CheaperTypical $824,484Pricier

Pricier than 2% of homes nearby

Price per ft²$519
CheaperTypical $344Pricier

Pricier than 98% of homes nearby

Living area729 ft²
SmallerTypical 2,408 ft²Bigger

Smaller than almost all homes nearby

Lot size3.1 ac
SmallerTypical 0.58 acBigger

Bigger than 98% of homes nearby

Year built1900
OlderTypical 1976Newer

Newer than 2% of homes nearby

How 129 Mountainside Dr ranks against every home in each area.
MeasureThis homeRandolph 07869Morris County
Estimated valuepricier than$378,3402% of homes5% of homes
Price per ft²pricier than$51998% of homes89% of homes
Living areabigger than729 ft²almost no homesalmost no homes
Lot sizebigger than3.1 ac98% of homes96% of homes
Year builtnewer than19002% of homes4% of homes

About 129 Mountainside Dr

How much is 129 Mountainside Dr, Randolph, NJ worth?

The TopHap Estimate for 129 Mountainside Dr, Randolph, NJ is $378,340 as of Aug 30, 2026. The likely range is $338,097 to $418,583. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 129 Mountainside Dr, Randolph, NJ last sell?

129 Mountainside Dr, Randolph, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

When was 129 Mountainside Dr, Randolph, NJ built?

129 Mountainside Dr, Randolph, NJ was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 129 Mountainside Dr, Randolph, NJ?

129 Mountainside Dr, Randolph, NJ is assigned to Randolph Middle School (middle), rated B+; Randolph High School (high), rated B; Center Grove School (elementary), rated A+. All sit in Randolph Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 129 Mountainside Dr, Randolph, NJ compare to other homes in Randolph 07869?

Among the 7,374 homes in Randolph 07869, it is worth more than 2% of them ($378,340 against a typical $824,484), its price per square foot is higher than 98% of them ($519 against a typical $344), it is bigger than almost none of them (729 ft² against a typical 2,408 ft²), its lot is bigger than 98% of them (3.1 ac against a typical 0.58 ac) and it is newer than 2% of them (1900 against a typical 1976). Measured against all of Morris County, it is worth more than 5% 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 129 Mountainside Dr, Randolph, NJ?

The 2024 property tax bill for 129 Mountainside Dr, Randolph, NJ was $5,458. The county assessed it at $192,800.

More homes on Mountainside Dr

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Assigned schools

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