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TownhouseResidential
$110,194$36 / 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 82How 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 $1,531,537 on Aug 27, 2015

3129 W DIAMOND ST

PHILADELPHIA, PA 19121
0
Baths
3,037 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.
1,485 ft²
Lot SizeThe size of the land the home sits on, from county records.
1915
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$110K
$90K low$130K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,531,537 · Aug 27, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$920 (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.$65,700 (2027)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$49,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$65,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$65,700

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.Triplex
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.

H
Strawberry Mansion High SchoolD
High · Grades 9–12 · 0.1 mi
E
James G. Blaine SchoolC-
Elementary · Grades KG–8 · 0.2 mi

District: Philadelphia City School District

Neighborhood · ZIP 19121These 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.161
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.35%
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.42,147
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17,238 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$49,273
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$65,484
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

3129 W Diamond 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 83% of homes in Philadelphia 19121
  • Among the lowest price per square foot in Philadelphia 19121
  • Bigger than 98% of homes in Strawberry Mansion
  • Has a bigger lot than 92% of homes in Strawberry Mansion
  • Newer than 93% of homes in Strawberry Mansion

What homes are worth in Philadelphia 19121

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

This home
$51K$675K

This home is worth more than 17% of homes in Philadelphia 19121.

How it measures up in Philadelphia 19121

The dot is this home. The mark in the middle is the typical home in Philadelphia 19121.

Estimated value$110,194
CheaperTypical $214,705Pricier

Pricier than 17% of homes nearby

Price per ft²$36
CheaperTypical $157Pricier

Cheaper than almost all homes nearby

Living area3,037 ft²
SmallerTypical 1,367 ft²Bigger

Bigger than 93% of homes nearby

Lot size1,485 ft²
SmallerTypical 1,002 ft²Bigger

Bigger than 84% of homes nearby

Year built1915
OlderTypical 1915Newer

Newer than 51% of homes nearby

How 3129 W Diamond St ranks against every home in each area.
MeasureThis homeStrawberry MansionPhiladelphia 19121Philadelphia County
Estimated valuepricier than$110,19466% of homes17% of homes17% of homes
Price per ft²pricier than$363% of homesalmost no homesalmost no homes
Living areabigger than3,037 ft²98% of homes93% of homes96% of homes
Lot sizebigger than1,485 ft²92% of homes84% of homes59% of homes
Year builtnewer than191593% of homes51% of homes13% of homes

About 3129 W Diamond St

How much is 3129 W Diamond St, Philadelphia, PA worth?

The TopHap Estimate for 3129 W Diamond St, Philadelphia, PA is $110,194 as of Sep 24, 2026. The likely range is $90,010 to $130,378. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3129 W Diamond St, Philadelphia, PA last sell?

3129 W Diamond St, Philadelphia, PA last sold on Aug 27, 2015 for $1,531,537, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 3129 W Diamond St, Philadelphia, PA?

3129 W Diamond St, Philadelphia, PA has 3,037 square feet of living space and a 0.03-acre lot.

When was 3129 W Diamond St, Philadelphia, PA built?

3129 W Diamond St, Philadelphia, PA was built in 1915, making it 111 years old. It is a triplex home. The building has 1 story.

What schools serve 3129 W Diamond St, Philadelphia, PA?

3129 W Diamond St, Philadelphia, PA is assigned to Strawberry Mansion High School (high), rated D; James G. Blaine School (elementary), rated C-. All sit in Philadelphia City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3129 W Diamond St, Philadelphia, PA compare to other homes in Philadelphia 19121?

Among the 12,029 homes in Philadelphia 19121, it is worth more than 17% of them ($110,194 against a typical $214,705), its price per square foot is higher than almost none of them ($36 against a typical $157), it is bigger than 93% of them (3,037 ft² against a typical 1,367 ft²), its lot is bigger than 84% of them (1,485 ft² against a typical 1,002 ft²) and it is newer than 51% of them (1915 against a typical 1915). Measured against all of Philadelphia County, it is worth more than 17% 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 3129 W Diamond St, Philadelphia, PA?

The 2026 property tax bill for 3129 W Diamond St, Philadelphia, PA was $920. The county assessed it at $65,700.

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