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Duplex (2 Units, Any Combination)Residential
Last sold for $815,000 on May 24, 2019

309 WALNUT ST

WESTFIELD, NJ 07090
0
Baths
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2019
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$815,000 · May 24, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,105 (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.$789,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$393,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$396,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$789,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$789,900

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.5 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyUNION
Lot (acres)The size of the land the home sits on, from county records.0.14
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

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

M
Roosevelt Intermediate SchoolB
Middle · Grades 6–8 · 0.5 mi
E
Franklin Elementary SchoolA
Elementary · Grades 1–5 · 0.6 mi
H
Westfield High SchoolA-
High · Grades 9–12 · 0.8 mi

District: Westfield Town School District

Neighborhood · ZIP 07090These 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.52
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.96%
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.2.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.31,941
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,742 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$183,919
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$244,350
Average tempThe average temperature here across a full year.53°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

309 Walnut St 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.

  • Has a smaller lot than 90% of homes in Westfield 07090
  • Among the newest homes in Union County

How it measures up in Westfield 07090

The dot is this home. The mark in the middle is the typical home in Westfield 07090.

Lot size0.14 ac
SmallerTypical 0.23 acBigger

Bigger than 10% of homes nearby

Year built2019
OlderTypical 1950Newer

Newer than 97% of homes nearby

How 309 Walnut St ranks against every home in each area.
MeasureThis homeWestfield 07090Union County
Lot sizebigger than0.14 ac10% of homes45% of homes
Year builtnewer than201997% of homesalmost all homes

About 309 Walnut St

When did 309 Walnut St, Westfield, NJ last sell?

309 Walnut St, Westfield, NJ last sold on May 24, 2019 for $815,000, according to the county's recorded deed.

When was 309 Walnut St, Westfield, NJ built?

309 Walnut St, Westfield, NJ was built in 2019, making it 7 years old. It is a duplex single home. The building has 2 stories.

What schools serve 309 Walnut St, Westfield, NJ?

309 Walnut St, Westfield, NJ is assigned to Roosevelt Intermediate School (middle), rated B; Franklin Elementary School (elementary), rated A; Westfield High School (high), rated A-. All sit in Westfield Town School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 309 Walnut St, Westfield, NJ compare to other homes in Westfield 07090?

Among the 9,479 homes in Westfield 07090, its lot is bigger than 10% of them (0.14 ac against a typical 0.23 ac) and it is newer than 97% of them (2019 against a typical 1950). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 309 Walnut St, Westfield, NJ?

The 2025 property tax bill for 309 Walnut St, Westfield, NJ was $18,105. The county assessed it at $789,900.

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Assigned schools

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