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Single Family ResidenceResidential
$272,982$284 / 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 80How 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 $255,000 on Jan 23, 2025

645 KNOLL LN

APOLLO, PA 15613
0
Baths
960 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.
1.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$273K
$219K low$327K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$255,000 · Jan 23, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,706 (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.$22,810 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,180
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$18,630
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$22,810
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$22,810

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.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
70
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
90
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
19
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
CountyWESTMORELAND
Lot (acres)The size of the land the home sits on, from county records.1.11
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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.

H
Burrell High SchoolC-
High · Grades 9–12 · 2.8 mi
M
Charles A. Huston Middle SchoolD+
Middle · Grades 6–8 · 2.9 mi
E
Bon Air Elementary SchoolB
Elementary · Grades KG–3 · 3.2 mi

District: Burrell School District

Neighborhood · ZIP 15613These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.12,906
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.220 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$71,177
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,536
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

645 Knoll Ln 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 72% of homes in Apollo 15613
  • Costs more per square foot than 97% of homes in Apollo 15613
  • Smaller than 89% of homes in Westmoreland County
  • Has a bigger lot than 82% of homes in Westmoreland County
  • Newer than 75% of homes in Apollo 15613

What homes are worth in Apollo 15613

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

This home
$44K$528K

This home is worth more than 72% of homes in Apollo 15613.

How it measures up in Apollo 15613

The dot is this home. The mark in the middle is the typical home in Apollo 15613.

Estimated value$272,982
CheaperTypical $194,262Pricier

Pricier than 72% of homes nearby

Price per ft²$284
CheaperTypical $134Pricier

Pricier than 97% of homes nearby

Living area960 ft²
SmallerTypical 1,444 ft²Bigger

Bigger than 13% of homes nearby

Lot size1.12 ac
SmallerTypical 0.79 acBigger

Bigger than 61% of homes nearby

Year built1986
OlderTypical 1960Newer

Newer than 75% of homes nearby

How 645 Knoll Ln ranks against every home in each area.
MeasureThis homeApollo 15613Westmoreland County
Estimated valuepricier than$272,98272% of homes68% of homes
Price per ft²pricier than$28497% of homes95% of homes
Living areabigger than960 ft²13% of homes11% of homes
Lot sizebigger than1.12 ac61% of homes82% of homes
Year builtnewer than198675% of homes58% of homes

About 645 Knoll Ln

How much is 645 Knoll Ln, Apollo, PA worth?

The TopHap Estimate for 645 Knoll Ln, Apollo, PA is $272,982 as of Sep 24, 2026. The likely range is $219,408 to $326,556. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 645 Knoll Ln, Apollo, PA last sell?

645 Knoll Ln, Apollo, PA last sold on Jan 23, 2025 for $255,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 645 Knoll Ln, Apollo, PA?

645 Knoll Ln, Apollo, PA has 960 square feet of living space and a 1.11-acre lot.

When was 645 Knoll Ln, Apollo, PA built?

645 Knoll Ln, Apollo, PA was built in 1986, making it 40 years old. The building has 1 story.

What schools serve 645 Knoll Ln, Apollo, PA?

645 Knoll Ln, Apollo, PA is assigned to Burrell High School (high), rated C-; Charles A. Huston Middle School (middle), rated D+; Bon Air Elementary School (elementary), rated B. All sit in Burrell School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 645 Knoll Ln, Apollo, PA compare to other homes in Apollo 15613?

Among the 5,807 homes in Apollo 15613, it is worth more than 72% of them ($272,982 against a typical $194,262), its price per square foot is higher than 97% of them ($284 against a typical $134), it is bigger than 13% of them (960 ft² against a typical 1,444 ft²), its lot is bigger than 61% of them (1.12 ac against a typical 0.79 ac) and it is newer than 75% of them (1986 against a typical 1960). Measured against all of Westmoreland County, it is worth more than 68% 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 645 Knoll Ln, Apollo, PA?

The 2026 property tax bill for 645 Knoll Ln, Apollo, PA was $3,706. The county assessed it at $22,810.

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