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TownhouseResidential
$160,654$80 / 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 79How 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

666 N UNION ST

PHILADELPHIA, PA 19104
0
Baths
2,000 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.
1,437 ft²
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.

Valuation

$161K
$127K low$194K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$46,000 (2027)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$46,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$48,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$46,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyPHILADELPHIA
Lot (acres)The size of the land the home sits on, from county records.0.03
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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.

E
Belmont Charter SchoolF
Elementary · Grades KG–8 · 0.2 mi
H
West Philadelphia High SchoolF
High · Grades 9–12 · 1.1 mi

District: Philadelphia City School District

Neighborhood · ZIP 19104These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.77

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.28%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.56,560
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17,613 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$37,197
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$54,514
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

666 N Union 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 68% of homes in Philadelphia County
  • Costs less per square foot than 93% of homes in Mantua
  • Bigger than 88% of homes in Philadelphia County
  • Has a bigger lot than 70% of homes in Mantua
  • Newer than 79% of homes in Philadelphia 19104

What homes are worth in Philadelphia 19104

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

This home
$64K$850K

This home is worth more than 40% of homes in Philadelphia 19104.

How it measures up in Philadelphia 19104

The dot is this home. The mark in the middle is the typical home in Philadelphia 19104.

Estimated value$160,654
CheaperTypical $192,421Pricier

Pricier than 40% of homes nearby

Price per ft²$80
CheaperTypical $135Pricier

Pricier than 12% of homes nearby

Living area2,000 ft²
SmallerTypical 1,770 ft²Bigger

Bigger than 59% of homes nearby

Lot size1,437 ft²
SmallerTypical 1,394 ft²Bigger

Bigger than 52% of homes nearby

Year built1930
OlderTypical 1925Newer

Newer than 79% of homes nearby

How 666 N Union St ranks against every home in each area.
MeasureThis homeMantuaPhiladelphia 19104Philadelphia County
Estimated valuepricier than$160,65443% of homes40% of homes32% of homes
Price per ft²pricier than$807% of homes12% of homes12% of homes
Living areabigger than2,000 ft²76% of homes59% of homes88% of homes
Lot sizebigger than1,437 ft²70% of homes52% of homes54% of homes
Year builtnewer than193070% of homes79% of homes55% of homes

About 666 N Union St

How much is 666 N Union St, Philadelphia, PA worth?

The TopHap Estimate for 666 N Union St, Philadelphia, PA is $160,654 as of Oct 21, 2026. The likely range is $126,966 to $194,342. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 666 N Union St, Philadelphia, PA last sell?

666 N Union St, Philadelphia, PA last sold on Feb 11, 1974, according to the county's recorded deed.

How big is 666 N Union St, Philadelphia, PA?

666 N Union St, Philadelphia, PA has 2,000 square feet of living space and a 0.03-acre lot.

When was 666 N Union St, Philadelphia, PA built?

666 N Union St, Philadelphia, PA was built in 1930, making it 96 years old. It is a townhouse home. The building has 3 stories.

What schools serve 666 N Union St, Philadelphia, PA?

666 N Union St, Philadelphia, PA is assigned to Belmont Charter School (elementary), rated F; West Philadelphia High School (high), rated F. All sit in Philadelphia City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 666 N Union St, Philadelphia, PA compare to other homes in Philadelphia 19104?

Among the 8,782 homes in Philadelphia 19104, it is worth more than 40% of them ($160,654 against a typical $192,421), its price per square foot is higher than 12% of them ($80 against a typical $135), it is bigger than 59% of them (2,000 ft² against a typical 1,770 ft²), its lot is bigger than 52% of them (1,437 ft² against a typical 1,394 ft²) and it is newer than 79% of them (1930 against a typical 1925). Measured against all of Philadelphia County, it is worth more than 32% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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Assigned schools

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