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Single Family ResidenceResidential
$508,030$294 / 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 92How 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

21 BUFFINGTON ST

KENNETT SQUARE, PA 19348
3
Beds
1
Baths
1,728 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1790
Year BuiltThe year the home was originally built, according to county records.
2
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

$508K
$466K low$550K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$763 (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.$126,830 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$43,080
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$83,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$126,830
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$127,300

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
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.1965
Lot (acres)The size of the land the home sits on, from county records.0.43
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Hot Water
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

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Unionville Elementary SchoolA+
Elementary · Grades KG–5 · 0.5 mi
M
Charles F. Patton Middle SchoolA
Middle · Grades 6–8 · 1.1 mi
H
Unionville High SchoolA+
High · Grades 9–12 · 1.2 mi

District: Unionville-Chadds Ford School District

Neighborhood · ZIP 19348These 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.90
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 100.83

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.24,379
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.635 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$120,766
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$162,168
Average tempThe average temperature here across a full year.53°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

21 Buffington 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 69% of homes in Kennett Square 19348
  • Costs more per square foot than 79% of homes in Kennett Square 19348
  • Smaller than 76% of homes in Kennett Square 19348
  • Among the oldest homes in Chester County

What homes are worth in Kennett Square 19348

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

This home
$294K$1.4M

This home is worth more than 31% of homes in Kennett Square 19348.

How it measures up in Kennett Square 19348

The dot is this home. The mark in the middle is the typical home in Kennett Square 19348.

Estimated value$508,030
CheaperTypical $609,216Pricier

Pricier than 31% of homes nearby

Price per ft²$294
CheaperTypical $251Pricier

Pricier than 79% of homes nearby

Living area1,728 ft²
SmallerTypical 2,458 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.43 ac
SmallerTypical 0.45 acBigger

Bigger than 49% of homes nearby

Year built1790
OlderTypical 1988Newer

Older than almost all homes nearby

How 21 Buffington St ranks against every home in each area.
MeasureThis homeKennett Square 19348Chester County
Estimated valuepricier than$508,03031% of homes39% of homes
Price per ft²pricier than$29479% of homes71% of homes
Living areabigger than1,728 ft²24% of homes29% of homes
Lot sizebigger than0.43 ac49% of homes48% of homes
Year builtnewer than1790almost no homesalmost no homes

About 21 Buffington St

How much is 21 Buffington St, Kennett Square, PA worth?

The TopHap Estimate for 21 Buffington St, Kennett Square, PA is $508,030 as of Oct 21, 2026. The likely range is $465,828 to $550,232. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Buffington St, Kennett Square, PA last sell?

21 Buffington St, Kennett Square, PA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Buffington St, Kennett Square, PA?

21 Buffington St, Kennett Square, PA has 3 bedrooms, 1 bathrooms, 1,728 square feet of living space and a 0.43-acre lot.

When was 21 Buffington St, Kennett Square, PA built?

21 Buffington St, Kennett Square, PA was built in 1790, making it 236 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Buffington St, Kennett Square, PA?

21 Buffington St, Kennett Square, PA is assigned to Unionville Elementary School (elementary), rated A+; Charles F. Patton Middle School (middle), rated A; Unionville High School (high), rated A+. All sit in Unionville-Chadds Ford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Buffington St, Kennett Square, PA compare to other homes in Kennett Square 19348?

Among the 7,126 homes in Kennett Square 19348, it is worth more than 31% of them ($508,030 against a typical $609,216), its price per square foot is higher than 79% of them ($294 against a typical $251), it is bigger than 24% of them (1,728 ft² against a typical 2,458 ft²), its lot is bigger than 49% of them (0.43 ac against a typical 0.45 ac) and it is newer than almost none of them (1790 against a typical 1988). Measured against all of Chester County, it is worth more than 39% 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 21 Buffington St, Kennett Square, PA?

The 2026 property tax bill for 21 Buffington St, Kennett Square, PA was $763. The county assessed it at $126,830.

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