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Single Family ResidenceResidential
$88,604$83 / 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 86How 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 $31,000 on Sep 25, 1990

521 COMMERCE ST

DARBY, PA 19023
3
Beds
1
Baths
1,072 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.
915 ft²
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$89K
$76K low$101K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$31,000 · Sep 25, 1990

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,576 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$47,810 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,590
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$34,220
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$47,810
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$47,810

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyDELAWARE
Lot (acres)The size of the land the home sits on, from county records.0.02
HeatingThe type of heating system in the home.Central
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.

E
Walnut Street Elementary SchoolF
Elementary · Grades KG–6 · 0.2 mi
M
Penn Wood Middle SchoolD-
Middle · Grades 7–8 · 0.2 mi
H
Penn Wood High SchoolD-
High · Grades 9–12 · 2.1 mi

District: William Penn School District

Neighborhood · ZIP 19023These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.79

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.27%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.22,855
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,478 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,669
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$67,129
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

521 Commerce 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 97% of homes in Delaware County
  • Costs less per square foot than 97% of homes in Delaware County
  • Smaller than 92% of homes in Darby
  • Has a smaller lot than 98% of homes in Darby 19023
  • Older than 65% of homes in Delaware County

What homes are worth in Darby 19023

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

This home
$81K$275K

This home is worth more than 4% of homes in Darby 19023.

How it measures up in Darby 19023

The dot is this home. The mark in the middle is the typical home in Darby 19023.

Estimated value$88,604
CheaperTypical $146,832Pricier

Pricier than 4% of homes nearby

Price per ft²$83
CheaperTypical $125Pricier

Pricier than 5% of homes nearby

Living area1,072 ft²
SmallerTypical 1,224 ft²Bigger

Bigger than 9% of homes nearby

Lot size915 ft²
SmallerTypical 2,178 ft²Bigger

Bigger than 2% of homes nearby

Year built1940
OlderTypical 1932Newer

Newer than 60% of homes nearby

How 521 Commerce St ranks against every home in each area.
MeasureThis homeDarbyDarby 19023Delaware County
Estimated valuepricier than$88,6044% of homes4% of homes3% of homes
Price per ft²pricier than$838% of homes5% of homes3% of homes
Living areabigger than1,072 ft²8% of homes9% of homes9% of homes
Lot sizebigger than915 ft²3% of homes2% of homes2% of homes
Year builtnewer than194064% of homes60% of homes35% of homes

About 521 Commerce St

How much is 521 Commerce St, Darby, PA worth?

The TopHap Estimate for 521 Commerce St, Darby, PA is $88,604 as of Sep 24, 2026. The likely range is $76,376 to $100,832. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Commerce St, Darby, PA last sell?

521 Commerce St, Darby, PA last sold on Sep 25, 1990 for $31,000, according to the county's recorded deed.

How big is 521 Commerce St, Darby, PA?

521 Commerce St, Darby, PA has 3 bedrooms, 1 bathrooms, 1,072 square feet of living space and a 0.02-acre lot.

When was 521 Commerce St, Darby, PA built?

521 Commerce St, Darby, PA was built in 1940, making it 86 years old. The building has 2 stories.

What schools serve 521 Commerce St, Darby, PA?

521 Commerce St, Darby, PA is assigned to Walnut Street Elementary School (elementary), rated F; Penn Wood Middle School (middle), rated D-; Penn Wood High School (high), rated D-. All sit in William Penn School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Commerce St, Darby, PA compare to other homes in Darby 19023?

Among the 6,823 homes in Darby 19023, it is worth more than 4% of them ($88,604 against a typical $146,832), its price per square foot is higher than 5% of them ($83 against a typical $125), it is bigger than 9% of them (1,072 ft² against a typical 1,224 ft²), its lot is bigger than 2% of them (915 ft² against a typical 2,178 ft²) and it is newer than 60% of them (1940 against a typical 1932). Measured against all of Delaware County, it is worth more than 3% 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 521 Commerce St, Darby, PA?

The 2026 property tax bill for 521 Commerce St, Darby, PA was $2,576. The county assessed it at $47,810.

More homes on Commerce St

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More homes in Darby 19023

Assigned schools

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