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Single Family ResidenceResidential
$892,003$433 / 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 95How 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 $430,000 on May 8, 2002

558 EMERALD TRL

MARTINSVILLE, NJ 08836
0
Baths
2,061 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.
1.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$892K
$849K low$935K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$430,000 · May 8, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,058 (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.$800,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$372,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$427,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$729,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$800,100

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.
21
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
67
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.
43
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
CountySOMERSET
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Bridgewater-Raritan Regional Middle SchoolA-
Middle · Grades 7–8 · 2.8 mi
E
Crim Elementary SchoolA-
Elementary · Grades KG–4 · 3.5 mi
H
Bridgewater-Raritan Regional High SchoolB
High · Grades 9–12 · 5.2 mi

District: Bridgewater-Raritan Regional School District

Neighborhood · ZIP 08836These 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.48
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
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.42%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.3%
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.4,433
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.933 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$189,037
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$232,855
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

558 Emerald Trl 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 73% of homes in Somerset County
  • Costs more per square foot than 87% of homes in Martinsville 08836
  • Smaller than 68% of homes in Martinsville 08836
  • Has a bigger lot than 86% of homes in Somerset County

What homes are worth in Martinsville 08836

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

This home
$477K$1.9M

This home is worth more than 55% of homes in Martinsville 08836.

How it measures up in Martinsville 08836

The dot is this home. The mark in the middle is the typical home in Martinsville 08836.

Estimated value$892,003
CheaperTypical $860,420Pricier

Pricier than 55% of homes nearby

Price per ft²$433
CheaperTypical $358Pricier

Pricier than 87% of homes nearby

Living area2,061 ft²
SmallerTypical 2,436 ft²Bigger

Bigger than 32% of homes nearby

Lot size1.2 ac
SmallerTypical 1.02 acBigger

Bigger than 68% of homes nearby

Year built1966
OlderTypical 1966Newer

Newer than 52% of homes nearby

How 558 Emerald Trl ranks against every home in each area.
MeasureThis homeMartinsville 08836Somerset County
Estimated valuepricier than$892,00355% of homes73% of homes
Price per ft²pricier than$43387% of homes86% of homes
Living areabigger than2,061 ft²32% of homes56% of homes
Lot sizebigger than1.2 ac68% of homes86% of homes
Year builtnewer than196652% of homes37% of homes

About 558 Emerald Trl

How much is 558 Emerald Trl, Martinsville, NJ worth?

The TopHap Estimate for 558 Emerald Trl, Martinsville, NJ is $892,003 as of Sep 24, 2026. The likely range is $849,013 to $934,993. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 558 Emerald Trl, Martinsville, NJ last sell?

558 Emerald Trl, Martinsville, NJ last sold on May 8, 2002 for $430,000, according to the county's recorded deed.

When was 558 Emerald Trl, Martinsville, NJ built?

558 Emerald Trl, Martinsville, NJ was built in 1966, making it 60 years old. The building has 1 story.

What schools serve 558 Emerald Trl, Martinsville, NJ?

558 Emerald Trl, Martinsville, NJ is assigned to Bridgewater-Raritan Regional Middle School (middle), rated A-; Crim Elementary School (elementary), rated A-; Bridgewater-Raritan Regional High School (high), rated B. All sit in Bridgewater-Raritan Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 558 Emerald Trl, Martinsville, NJ compare to other homes in Martinsville 08836?

Among the 1,338 homes in Martinsville 08836, it is worth more than 55% of them ($892,003 against a typical $860,420), its price per square foot is higher than 87% of them ($433 against a typical $358), it is bigger than 32% of them (2,061 ft² against a typical 2,436 ft²), its lot is bigger than 68% of them (1.2 ac against a typical 1.02 ac) and it is newer than 52% of them (1966 against a typical 1966). Measured against all of Somerset County, it is worth more than 73% 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 558 Emerald Trl, Martinsville, NJ?

The 2025 property tax bill for 558 Emerald Trl, Martinsville, NJ was $14,058. The county assessed it at $800,100.

More homes on Emerald Trl

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Assigned schools

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