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Single Family ResidenceResidential
$416,724$403 / 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 98How 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 $400,000 on Nov 15, 2023

409 WILLIAM ST

DOWNINGTOWN, PA 19335
2
Beds
1
Baths
1,033 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1948
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$417K
$409K low$424K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Nov 15, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$527 (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.$115,330 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,980
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$79,350
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$115,330
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$115,330

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.Cape Cod
CountyCHESTER
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.2020
Lot (acres)The size of the land the home sits on, from county records.0.15
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood

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
Beaver Creek Elementary SchoolA
Elementary · Grades KG–5 · 0.3 mi
H
Downingtown High School WestA
High · Grades 9–12 · 0.5 mi
M
Downingtown Middle SchoolB+
Middle · Grades 7–8 · 0.7 mi

District: Downingtown Area School District

Neighborhood · ZIP 19335These 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.61
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.81

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.8%
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.53,396
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,255 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,311
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$159,194
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

409 William 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 Downingtown 19335
  • Among the highest price per square foot in Downingtown 19335
  • Smaller than 97% of homes in Downingtown 19335
  • Has a smaller lot than 73% of homes in Chester County
  • Older than 92% of homes in Downingtown 19335

What homes are worth in Downingtown 19335

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

This home
$259K$1.1M

This home is worth more than 17% of homes in Downingtown 19335.

How it measures up in Downingtown 19335

The dot is this home. The mark in the middle is the typical home in Downingtown 19335.

Estimated value$416,724
CheaperTypical $580,689Pricier

Pricier than 17% of homes nearby

Price per ft²$403
CheaperTypical $250Pricier

Pricier than almost all homes nearby

Living area1,033 ft²
SmallerTypical 2,213 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.15 ac
SmallerTypical 0.29 acBigger

Bigger than 33% of homes nearby

Year built1948
OlderTypical 1989Newer

Newer than 8% of homes nearby

How 409 William St ranks against every home in each area.
MeasureThis homeDowningtown 19335Chester County
Estimated valuepricier than$416,72417% of homes23% of homes
Price per ft²pricier than$403almost all homes96% of homes
Living areabigger than1,033 ft²3% of homes4% of homes
Lot sizebigger than0.15 ac33% of homes27% of homes
Year builtnewer than19488% of homes15% of homes

About 409 William St

How much is 409 William St, Downingtown, PA worth?

The TopHap Estimate for 409 William St, Downingtown, PA is $416,724 as of Sep 24, 2026. The likely range is $409,309 to $424,139. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 409 William St, Downingtown, PA last sell?

409 William St, Downingtown, PA last sold on Nov 15, 2023 for $400,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 409 William St, Downingtown, PA?

409 William St, Downingtown, PA has 2 bedrooms, 1 bathrooms, 1,033 square feet of living space and a 0.15-acre lot.

When was 409 William St, Downingtown, PA built?

409 William St, Downingtown, PA was built in 1948, making it 78 years old. It is a cape cod home. The building has 1 story.

What schools serve 409 William St, Downingtown, PA?

409 William St, Downingtown, PA is assigned to Beaver Creek Elementary School (elementary), rated A; Downingtown High School West (high), rated A; Downingtown Middle School (middle), rated B+. All sit in Downingtown Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 409 William St, Downingtown, PA compare to other homes in Downingtown 19335?

Among the 18,549 homes in Downingtown 19335, it is worth more than 17% of them ($416,724 against a typical $580,689), its price per square foot is higher than almost all of them ($403 against a typical $250), it is bigger than 3% of them (1,033 ft² against a typical 2,213 ft²), its lot is bigger than 33% of them (0.15 ac against a typical 0.29 ac) and it is newer than 8% of them (1948 against a typical 1989). Measured against all of Chester 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 409 William St, Downingtown, PA?

The 2026 property tax bill for 409 William St, Downingtown, PA was $527. The county assessed it at $115,330.

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