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Single Family ResidenceResidential
$505,935$789 / 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 77How 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
Last sold for $45,936 on Apr 23, 2001

21A DEVONSHIRE LN

MENDHAM, NJ 07945
0
Baths
641 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1989
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$506K
$391K low$621K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$45,936 · Apr 23, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,643 (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.$92,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$30,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$62,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$88,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$92,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMORRIS
Lot (acres)The size of the land the home sits on, from county records.0.22
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.

H
West Morris Mendham High SchoolA+
High · Grades 9–12 · 0.5 mi
E
Mendham Township Elementary SchoolA
Elementary · Grades PK–4 · 0.9 mi
M
Mendham Township Middle SchoolA
Middle · Grades 5–8 · 2.1 mi

District: Mendham Township School District

Neighborhood · ZIP 07945These 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.88
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.41%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.10,295
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.510 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$212,259
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$270,274
Average tempThe average temperature here across a full year.50°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

21a Devonshire Ln 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 Mendham 07945
  • Among the highest price per square foot in Mendham 07945
  • Among the smallest homes in Mendham 07945
  • Has a smaller lot than 88% of homes in Mendham 07945
  • Newer than 77% of homes in Mendham 07945

What homes are worth in Mendham 07945

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

This home
$512K$2.5M

This home is worth more than 2% of homes in Mendham 07945.

How it measures up in Mendham 07945

The dot is this home. The mark in the middle is the typical home in Mendham 07945.

Estimated value$505,935
CheaperTypical $1,091,367Pricier

Pricier than 2% of homes nearby

Price per ft²$789
CheaperTypical $391Pricier

Pricier than almost all homes nearby

Living area641 ft²
SmallerTypical 2,804 ft²Bigger

Smaller than almost all homes nearby

Lot size0.22 ac
SmallerTypical 1.03 acBigger

Bigger than 12% of homes nearby

Year built1989
OlderTypical 1973Newer

Newer than 77% of homes nearby

How 21a Devonshire Ln ranks against every home in each area.
MeasureThis homeMendham 07945Morris County
Estimated valuepricier than$505,9352% of homes18% of homes
Price per ft²pricier than$789almost all homesalmost all homes
Living areabigger than641 ft²almost no homesalmost no homes
Lot sizebigger than0.22 ac12% of homes33% of homes
Year builtnewer than198977% of homes76% of homes

About 21a Devonshire Ln

How much is 21a Devonshire Ln, Mendham, NJ worth?

The TopHap Estimate for 21a Devonshire Ln, Mendham, NJ is $505,935 as of Aug 30, 2026. The likely range is $390,801 to $621,069. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21a Devonshire Ln, Mendham, NJ last sell?

21a Devonshire Ln, Mendham, NJ last sold on Apr 23, 2001 for $45,936, according to the county's recorded deed.

How big is 21a Devonshire Ln, Mendham, NJ?

21a Devonshire Ln, Mendham, NJ has 641 square feet of living space and a 0.22-acre lot.

When was 21a Devonshire Ln, Mendham, NJ built?

21a Devonshire Ln, Mendham, NJ was built in 1989, making it 37 years old. The building has 1 story.

What schools serve 21a Devonshire Ln, Mendham, NJ?

21a Devonshire Ln, Mendham, NJ is assigned to West Morris Mendham High School (high), rated A+; Mendham Township Elementary School (elementary), rated A; Mendham Township Middle School (middle), rated A. All sit in Mendham Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21a Devonshire Ln, Mendham, NJ compare to other homes in Mendham 07945?

Among the 3,208 homes in Mendham 07945, it is worth more than 2% of them ($505,935 against a typical $1,091,367), its price per square foot is higher than almost all of them ($789 against a typical $391), it is bigger than almost none of them (641 ft² against a typical 2,804 ft²), its lot is bigger than 12% of them (0.22 ac against a typical 1.03 ac) and it is newer than 77% of them (1989 against a typical 1973). Measured against all of Morris County, it is worth more than 18% 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 21a Devonshire Ln, Mendham, NJ?

The 2024 property tax bill for 21a Devonshire Ln, Mendham, NJ was $1,643. The county assessed it at $92,500.

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