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Single Family ResidenceResidential
$641,190$255 / 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 Oct 21, 2026

99 PIATT ESTATES DR

WASHINGTON, PA 15301
3
Beds
2.5
Baths
2,513 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.
0.65 ac
Lot SizeThe size of the land the home sits on, from county records.
2022
Year BuiltThe year the home was originally built, according to county records.
1
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

$641K
$526K low$757K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,424 (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.$404,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$68,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$336,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$404,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$404,600

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
72
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
89
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
31
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyWASHINGTON
Lot (acres)The size of the land the home sits on, from county records.0.65
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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.

E
Allison Park Elementary SchoolA-
Elementary · Grades KG–6 · 0.3 mi
M
Chartiers-Houston Jr. / Sr. High SchoolB
Middle · Grades 7–12 · 0.7 mi

District: Chartiers-Houston School District

Neighborhood · ZIP 15301These 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.116
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
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.92%
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.12%
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.48,093
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.394 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,078
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,036
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.40 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

99 Piatt Estates Dr 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 more than 98% of homes in Washington 15301
  • Costs more per square foot than 94% of homes in Washington 15301
  • Bigger than 90% of homes in Washington 15301
  • Has a bigger lot than 71% of homes in Washington 15301
  • Among the newest homes in Washington 15301

What homes are worth in Washington 15301

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

This home
$36K$646K

This home is worth more than 98% of homes in Washington 15301.

How it measures up in Washington 15301

The dot is this home. The mark in the middle is the typical home in Washington 15301.

Estimated value$641,190
CheaperTypical $221,864Pricier

Pricier than 98% of homes nearby

Price per ft²$255
CheaperTypical $158Pricier

Pricier than 94% of homes nearby

Living area2,513 ft²
SmallerTypical 1,400 ft²Bigger

Bigger than 90% of homes nearby

Lot size0.65 ac
SmallerTypical 0.3 acBigger

Bigger than 71% of homes nearby

Year built2022
OlderTypical 1961Newer

Newer than almost all homes nearby

How 99 Piatt Estates Dr ranks against every home in each area.
MeasureThis homeWashington 15301Washington County
Estimated valuepricier than$641,19098% of homes93% of homes
Price per ft²pricier than$25594% of homes90% of homes
Living areabigger than2,513 ft²90% of homes86% of homes
Lot sizebigger than0.65 ac71% of homes71% of homes
Year builtnewer than2022almost all homes98% of homes

About 99 Piatt Estates Dr

How much is 99 Piatt Estates Dr, Washington, PA worth?

The TopHap Estimate for 99 Piatt Estates Dr, Washington, PA is $641,190 as of Oct 21, 2026. The likely range is $525,782 to $756,598. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 99 Piatt Estates Dr, Washington, PA last sell?

99 Piatt Estates Dr, Washington, PA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 99 Piatt Estates Dr, Washington, PA?

99 Piatt Estates Dr, Washington, PA has 3 bedrooms, 2.5 bathrooms, 2,513 square feet of living space and a 0.65-acre lot.

When was 99 Piatt Estates Dr, Washington, PA built?

99 Piatt Estates Dr, Washington, PA was built in 2022, making it 4 years old. The building has 1 story.

What schools serve 99 Piatt Estates Dr, Washington, PA?

99 Piatt Estates Dr, Washington, PA is assigned to Allison Park Elementary School (elementary), rated A-; Chartiers-Houston Jr. / Sr. High School (middle), rated B. All sit in Chartiers-Houston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 99 Piatt Estates Dr, Washington, PA compare to other homes in Washington 15301?

Among the 18,847 homes in Washington 15301, it is worth more than 98% of them ($641,190 against a typical $221,864), its price per square foot is higher than 94% of them ($255 against a typical $158), it is bigger than 90% of them (2,513 ft² against a typical 1,400 ft²), its lot is bigger than 71% of them (0.65 ac against a typical 0.3 ac) and it is newer than almost all of them (2022 against a typical 1961). Measured against all of Washington County, it is worth more than 93% 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 99 Piatt Estates Dr, Washington, PA?

The 2026 property tax bill for 99 Piatt Estates Dr, Washington, PA was $7,424. The county assessed it at $404,600.

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