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Apartments (Generic)Residential
Last sold for $35,000 on Apr 24, 2017

12 N KEYSTONE AVE

UPPER DARBY, PA 19082
0
Baths
3,838 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.
3,790 ft²
Lot SizeThe size of the land the home sits on, from county records.
1950
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.$35,000 · Apr 24, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,476 (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.$235,850 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$44,320
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$191,530
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$229,090
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$235,850

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Apartments (Generic)
CountyDELAWARE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1990
Lot (acres)The size of the land the home sits on, from county records.0.09
CoolingThe type of cooling or air conditioning in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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.

M
Beverly Hills Middle SchoolC-
Middle · Grades 6–8 · 0.7 mi
E
Highland Park Elementary SchoolC+
Elementary · Grades 1–5 · 1.0 mi
H
Upper Darby High SchoolD+
High · Grades 9–12 · 1.2 mi

District: Upper Darby School District

Neighborhood · ZIP 19082These 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.115
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.78

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
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.41,135
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16,040 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$59,070
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,967
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

12 N Keystone Ave 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.

  • Among the largest homes in Upper Darby 19082
  • Has a bigger lot than 81% of homes in Upper Darby 19082
  • Newer than 96% of homes in Upper Darby 19082

How it measures up in Upper Darby 19082

The dot is this home. The mark in the middle is the typical home in Upper Darby 19082.

Living area3,838 ft²
SmallerTypical 1,285 ft²Bigger

Bigger than almost all homes nearby

Lot size3,790 ft²
SmallerTypical 1,786 ft²Bigger

Bigger than 81% of homes nearby

Year built1950
OlderTypical 1929Newer

Newer than 96% of homes nearby

How 12 N Keystone Ave ranks against every home in each area.
MeasureThis homeUpper Darby 19082Delaware County
Living areabigger than3,838 ft²almost all homes94% of homes
Lot sizebigger than3,790 ft²81% of homes34% of homes
Year builtnewer than195096% of homes53% of homes

About 12 N Keystone Ave

When did 12 N Keystone Ave, Upper Darby, PA last sell?

12 N Keystone Ave, Upper Darby, PA last sold on Apr 24, 2017 for $35,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 12 N Keystone Ave, Upper Darby, PA?

12 N Keystone Ave, Upper Darby, PA has 3,838 square feet of living space and a 0.09-acre lot.

When was 12 N Keystone Ave, Upper Darby, PA built?

12 N Keystone Ave, Upper Darby, PA was built in 1950, making it 76 years old. The building has 2 stories.

What schools serve 12 N Keystone Ave, Upper Darby, PA?

12 N Keystone Ave, Upper Darby, PA is assigned to Beverly Hills Middle School (middle), rated C-; Highland Park Elementary School (elementary), rated C+; Upper Darby High School (high), rated D+. All sit in Upper Darby School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 N Keystone Ave, Upper Darby, PA compare to other homes in Upper Darby 19082?

Among the 11,486 homes in Upper Darby 19082, it is bigger than almost all of them (3,838 ft² against a typical 1,285 ft²), its lot is bigger than 81% of them (3,790 ft² against a typical 1,786 ft²) and it is newer than 96% of them (1950 against a typical 1929). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 12 N Keystone Ave, Upper Darby, PA?

The 2026 property tax bill for 12 N Keystone Ave, Upper Darby, PA was $10,476. The county assessed it at $235,850.

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