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Single Family ResidenceResidential
$567,060$272 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $300,000 on Apr 5, 2012

21 BOULDER LN

HORSHAM, PA 19044
3
Beds
2.5
Baths
2,084 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.
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$567K
$542K low$592K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$300,000 · Apr 5, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,471 (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.$173,130 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$173,130
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$173,130

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
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.0.30
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
GarageWhether the property has a garage, and details like whether it is attached to the home.No Garage
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.DeckPatio · 338 ft²

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.

M
Keith Valley Middle SchoolA
Middle · Grades 6–8 · 1.8 mi
H
Hatboro-Horsham Senior High SchoolA
High · Grades 9–12 · 1.9 mi
E
Hallowell Elementary SchoolB-
Elementary · Grades KG–5 · 1.9 mi

District: Hatboro-Horsham School District

Neighborhood · ZIP 19044These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.85

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.16,539
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,915 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,168
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$114,888
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 Boulder 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 Horsham 19044
  • Bigger than 69% of homes in Horsham 19044
  • Has a bigger lot than 70% of homes in Horsham 19044
  • Newer than 83% of homes in Horsham 19044

What homes are worth in Horsham 19044

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

This home
$279K$1.3M

This home is worth more than 72% of homes in Horsham 19044.

How it measures up in Horsham 19044

The dot is this home. The mark in the middle is the typical home in Horsham 19044.

Estimated value$567,060
CheaperTypical $428,065Pricier

Pricier than 72% of homes nearby

Price per ft²$272
CheaperTypical $280Pricier

Pricier than 43% of homes nearby

Living area2,084 ft²
SmallerTypical 1,680 ft²Bigger

Bigger than 69% of homes nearby

Lot size0.3 ac
SmallerTypical 0.19 acBigger

Bigger than 70% of homes nearby

Year built1987
OlderTypical 1984Newer

Newer than 83% of homes nearby

How 21 Boulder Ln ranks against every home in each area.
MeasureThis homeHorsham 19044Montgomery County
Estimated valuepricier than$567,06072% of homes61% of homes
Price per ft²pricier than$27243% of homes63% of homes
Living areabigger than2,084 ft²69% of homes53% of homes
Lot sizebigger than0.3 ac70% of homes59% of homes
Year builtnewer than198783% of homes71% of homes

About 21 Boulder Ln

How much is 21 Boulder Ln, Horsham, PA worth?

The TopHap Estimate for 21 Boulder Ln, Horsham, PA is $567,060 as of Aug 30, 2026. The likely range is $542,362 to $591,758. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Boulder Ln, Horsham, PA last sell?

21 Boulder Ln, Horsham, PA last sold on Apr 5, 2012 for $300,000, according to the county's recorded deed.

How big is 21 Boulder Ln, Horsham, PA?

21 Boulder Ln, Horsham, PA has 3 bedrooms, 2.5 bathrooms, 2,084 square feet of living space and a 0.30-acre lot.

When was 21 Boulder Ln, Horsham, PA built?

21 Boulder Ln, Horsham, PA was built in 1987, making it 39 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Boulder Ln, Horsham, PA?

21 Boulder Ln, Horsham, PA is assigned to Keith Valley Middle School (middle), rated A; Hatboro-Horsham Senior High School (high), rated A; Hallowell Elementary School (elementary), rated B-. All sit in Hatboro-Horsham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Boulder Ln, Horsham, PA compare to other homes in Horsham 19044?

Among the 5,018 homes in Horsham 19044, it is worth more than 72% of them ($567,060 against a typical $428,065), its price per square foot is higher than 43% of them ($272 against a typical $280), it is bigger than 69% of them (2,084 ft² against a typical 1,680 ft²), its lot is bigger than 70% of them (0.3 ac against a typical 0.19 ac) and it is newer than 83% of them (1987 against a typical 1984). Measured against all of Montgomery County, it is worth more than 61% 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 Boulder Ln, Horsham, PA?

The 2026 property tax bill for 21 Boulder Ln, Horsham, PA was $7,471. The county assessed it at $173,130.

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