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Single Family ResidenceResidential
$530,919$691 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $175,000 on Apr 16, 2013

323 DIETZ ST

ROSELLE, NJ 07203
0
Baths
768 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$531K
$499K low$563K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$175,000 · Apr 16, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,510 (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.$114,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$67,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$47,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$114,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$114,900

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.Cape Cod
CountyUNION
Lot (acres)The size of the land the home sits on, from county records.0.17
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

Transaction History(8)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

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

E
Washington Elementary SchoolD-
Elementary · Grades 1–4 · 0.3 mi
M
Grace Wilday Junior High SchoolD-
Middle · Grades 7–8 · 0.9 mi
H
Abraham Clark High SchoolD-
High · Grades 9–12 · 1.0 mi

District: Roselle Borough School District

Neighborhood · ZIP 07203These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.113

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.23,141
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,867 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,013
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,446
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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

323 Dietz 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.

  • Worth less than 76% of homes in Union County
  • Among the highest price per square foot in Roselle 07203
  • Smaller than 97% of homes in Union County
  • Has a bigger lot than 76% of homes in Roselle 07203

What homes are worth in Roselle 07203

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

This home
$198K$757K

This home is worth more than 64% of homes in Roselle 07203.

How it measures up in Roselle 07203

The dot is this home. The mark in the middle is the typical home in Roselle 07203.

Estimated value$530,919
CheaperTypical $506,231Pricier

Pricier than 64% of homes nearby

Price per ft²$691
CheaperTypical $358Pricier

Pricier than almost all homes nearby

Living area768 ft²
SmallerTypical 1,368 ft²Bigger

Bigger than 8% of homes nearby

Lot size0.17 ac
SmallerTypical 0.12 acBigger

Bigger than 76% of homes nearby

Year built1949
OlderTypical 1941Newer

Newer than 60% of homes nearby

How 323 Dietz St ranks against every home in each area.
MeasureThis homeRoselle 07203Union County
Estimated valuepricier than$530,91964% of homes24% of homes
Price per ft²pricier than$691almost all homes96% of homes
Living areabigger than768 ft²8% of homes3% of homes
Lot sizebigger than0.17 ac76% of homes62% of homes
Year builtnewer than194960% of homes47% of homes

About 323 Dietz St

How much is 323 Dietz St, Roselle, NJ worth?

The TopHap Estimate for 323 Dietz St, Roselle, NJ is $530,919 as of Oct 21, 2026. The likely range is $498,718 to $563,120. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 323 Dietz St, Roselle, NJ last sell?

323 Dietz St, Roselle, NJ last sold on Apr 16, 2013 for $175,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 323 Dietz St, Roselle, NJ?

323 Dietz St, Roselle, NJ has 768 square feet of living space and a 0.17-acre lot.

When was 323 Dietz St, Roselle, NJ built?

323 Dietz St, Roselle, NJ was built in 1949, making it 77 years old. It is a cape cod home. The building has 1 story.

What schools serve 323 Dietz St, Roselle, NJ?

323 Dietz St, Roselle, NJ is assigned to Washington Elementary School (elementary), rated D-; Grace Wilday Junior High School (middle), rated D-; Abraham Clark High School (high), rated D-. All sit in Roselle Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 323 Dietz St, Roselle, NJ compare to other homes in Roselle 07203?

Among the 5,320 homes in Roselle 07203, it is worth more than 64% of them ($530,919 against a typical $506,231), its price per square foot is higher than almost all of them ($691 against a typical $358), it is bigger than 8% of them (768 ft² against a typical 1,368 ft²), its lot is bigger than 76% of them (0.17 ac against a typical 0.12 ac) and it is newer than 60% of them (1949 against a typical 1941). Measured against all of Union County, it is worth more than 24% 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 323 Dietz St, Roselle, NJ?

The 2025 property tax bill for 323 Dietz St, Roselle, NJ was $10,510. The county assessed it at $114,900.

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