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Single Family ResidenceResidential
$133,903$114 / 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 Sep 24, 2026

520 MARY ST

PITTSBURGH, PA 15209
3
Beds
1.5
Baths
1,176 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.
1,440 ft²
Lot SizeThe size of the land the home sits on, from county records.
1959
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$134K
$105K low$162K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$310 (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.$48,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$39,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$48,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$48,200

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.35
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
75
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
75
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
20
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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.Colonial
CountyALLEGHENY
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.Brick
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Marzolf Primary SchoolA+
Elementary · Grades KG–3 · 2.0 mi
H
Shaler Area High SchoolB+
High · Grades 9–12 · 2.2 mi
M
Shaler Area Middle SchoolB+
Middle · Grades 7–8 · 3.1 mi

District: Shaler Area School District

Neighborhood · ZIP 15209These 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.79
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 100.27

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.11,772
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,574 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,534
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,721
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.45%

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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

520 Mary 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 77% of homes in Allegheny County
  • Costs less per square foot than 74% of homes in Allegheny County
  • Smaller than 74% of homes in Allegheny County
  • Has a smaller lot than 96% of homes in Allegheny County
  • Newer than 65% of homes in Pittsburgh 15209

What homes are worth in Pittsburgh 15209

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

This home
$69K$496K

This home is worth more than 24% of homes in Pittsburgh 15209.

How it measures up in Pittsburgh 15209

The dot is this home. The mark in the middle is the typical home in Pittsburgh 15209.

Estimated value$133,903
CheaperTypical $234,195Pricier

Pricier than 24% of homes nearby

Price per ft²$114
CheaperTypical $168Pricier

Pricier than 27% of homes nearby

Living area1,176 ft²
SmallerTypical 1,430 ft²Bigger

Bigger than 27% of homes nearby

Lot size1,440 ft²
SmallerTypical 0.21 acBigger

Bigger than 5% of homes nearby

Year built1959
OlderTypical 1950Newer

Newer than 65% of homes nearby

How 520 Mary St ranks against every home in each area.
MeasureThis homePittsburgh 15209Allegheny County
Estimated valuepricier than$133,90324% of homes23% of homes
Price per ft²pricier than$11427% of homes26% of homes
Living areabigger than1,176 ft²27% of homes26% of homes
Lot sizebigger than1,440 ft²5% of homes4% of homes
Year builtnewer than195965% of homes63% of homes

About 520 Mary St

How much is 520 Mary St, Pittsburgh, PA worth?

The TopHap Estimate for 520 Mary St, Pittsburgh, PA is $133,903 as of Sep 24, 2026. The likely range is $105,460 to $162,346. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 520 Mary St, Pittsburgh, PA last sell?

520 Mary St, Pittsburgh, PA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 520 Mary St, Pittsburgh, PA?

520 Mary St, Pittsburgh, PA has 3 bedrooms, 1.5 bathrooms, 1,176 square feet of living space and a 0.03-acre lot.

When was 520 Mary St, Pittsburgh, PA built?

520 Mary St, Pittsburgh, PA was built in 1959, making it 67 years old. It is a colonial home. The building has 2 stories.

What schools serve 520 Mary St, Pittsburgh, PA?

520 Mary St, Pittsburgh, PA is assigned to Marzolf Primary School (elementary), rated A+; Shaler Area High School (high), rated B+; Shaler Area Middle School (middle), rated B+. All sit in Shaler Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 520 Mary St, Pittsburgh, PA compare to other homes in Pittsburgh 15209?

Among the 5,087 homes in Pittsburgh 15209, it is worth more than 24% of them ($133,903 against a typical $234,195), its price per square foot is higher than 27% of them ($114 against a typical $168), it is bigger than 27% of them (1,176 ft² against a typical 1,430 ft²), its lot is bigger than 5% of them (1,440 ft² against a typical 0.21 ac) and it is newer than 65% of them (1959 against a typical 1950). Measured against all of Allegheny County, it is worth more than 23% 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 520 Mary St, Pittsburgh, PA?

The 2026 property tax bill for 520 Mary St, Pittsburgh, PA was $310. The county assessed it at $48,200.

More homes on Mary St

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Assigned schools

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