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Single Family ResidenceResidential
$874,990$188 / 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 90How 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

21 GREEN FARMS RD

ANDOVER, NJ 07821
0
Baths
4,665 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.
2.55 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$875K
$784K low$966K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$24,939 (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.$1,125,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$168,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$957,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,096,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,125,600

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.42
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
25
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
30
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountySUSSEX
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, Attached
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.

E
Green Hills SchoolA-
Elementary · Grades PK–8 · 0.2 mi
H
Newton High SchoolC-
High · Grades 9–12 · 5.2 mi

District: Newton Town School District

Neighborhood · ZIP 07821These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.92

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.3%
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.11,080
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.246 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$129,971
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$159,119
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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 Green Farms Rd 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 more than 96% of homes in Sussex County
  • Costs less per square foot than 95% of homes in Andover 07821
  • Among the largest homes in Sussex County
  • Has a bigger lot than 90% of homes in Sussex County
  • Newer than 94% of homes in Andover 07821

What homes are worth in Andover 07821

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

This home
$158K$1M

This home is worth more than 95% of homes in Andover 07821.

How it measures up in Andover 07821

The dot is this home. The mark in the middle is the typical home in Andover 07821.

Estimated value$874,990
CheaperTypical $491,813Pricier

Pricier than 95% of homes nearby

Price per ft²$188
CheaperTypical $275Pricier

Pricier than 5% of homes nearby

Living area4,665 ft²
SmallerTypical 1,860 ft²Bigger

Bigger than 98% of homes nearby

Lot size2.55 ac
SmallerTypical 0.51 acBigger

Bigger than 84% of homes nearby

Year built2002
OlderTypical 1973Newer

Newer than 94% of homes nearby

How 21 Green Farms Rd ranks against every home in each area.
MeasureThis homeAndover 07821Sussex County
Estimated valuepricier than$874,99095% of homes96% of homes
Price per ft²pricier than$1885% of homes6% of homes
Living areabigger than4,665 ft²98% of homesalmost all homes
Lot sizebigger than2.55 ac84% of homes90% of homes
Year builtnewer than200294% of homes91% of homes

About 21 Green Farms Rd

How much is 21 Green Farms Rd, Andover, NJ worth?

The TopHap Estimate for 21 Green Farms Rd, Andover, NJ is $874,990 as of Aug 30, 2026. The likely range is $783,906 to $966,074. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Green Farms Rd, Andover, NJ last sell?

21 Green Farms Rd, Andover, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

When was 21 Green Farms Rd, Andover, NJ built?

21 Green Farms Rd, Andover, NJ was built in 2002, making it 24 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Green Farms Rd, Andover, NJ?

21 Green Farms Rd, Andover, NJ is assigned to Green Hills School (elementary), rated A-; Newton High School (high), rated C-. All sit in Newton Town School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Green Farms Rd, Andover, NJ compare to other homes in Andover 07821?

Among the 3,729 homes in Andover 07821, it is worth more than 95% of them ($874,990 against a typical $491,813), its price per square foot is higher than 5% of them ($188 against a typical $275), it is bigger than 98% of them (4,665 ft² against a typical 1,860 ft²), its lot is bigger than 84% of them (2.55 ac against a typical 0.51 ac) and it is newer than 94% of them (2002 against a typical 1973). Measured against all of Sussex County, it is worth more than 96% 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 Green Farms Rd, Andover, NJ?

The 2025 property tax bill for 21 Green Farms Rd, Andover, NJ was $24,939. The county assessed it at $1,125,600.

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