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Single Family ResidenceResidential
$939,172$310 / 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 93How 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 $475,000 on Aug 14, 2002

1820 THORNBURY DR

AMBLER, PA 19002
4
Beds
2.5
Baths
3,028 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1989
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$939K
$876K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$475,000 · Aug 14, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,663 (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.$278,340 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$278,340
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$278,340

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.0.60
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 · 740 ft²

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

E
Maple Glen Elementary SchoolA
Elementary · Grades KG–5 · 0.9 mi
H
Upper Dublin High SchoolA+
High · Grades 9–12 · 1.8 mi
M
Sandy Run Middle SchoolA
Middle · Grades 6–8 · 3.4 mi

District: Upper Dublin School District

Neighborhood · ZIP 19002These 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.60
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.36,861
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,678 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$137,744
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$171,064
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

1820 Thornbury 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 89% of homes in Montgomery County
  • Costs more per square foot than 82% of homes in Montgomery County
  • Bigger than 81% of homes in Montgomery County
  • Has a bigger lot than 80% of homes in Montgomery County
  • Newer than 80% of homes in Upper Dublin

What homes are worth in Ambler 19002

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

This home
$293K$1.9M

This home is worth more than 73% of homes in Ambler 19002.

How it measures up in Ambler 19002

The dot is this home. The mark in the middle is the typical home in Ambler 19002.

Estimated value$939,172
CheaperTypical $716,957Pricier

Pricier than 73% of homes nearby

Price per ft²$310
CheaperTypical $282Pricier

Pricier than 72% of homes nearby

Living area3,028 ft²
SmallerTypical 2,490 ft²Bigger

Bigger than 67% of homes nearby

Lot size0.6 ac
SmallerTypical 0.39 acBigger

Bigger than 64% of homes nearby

Year built1989
OlderTypical 1977Newer

Newer than 69% of homes nearby

How 1820 Thornbury Dr ranks against every home in each area.
MeasureThis homeUpper DublinAmbler 19002Montgomery County
Estimated valuepricier than$939,17284% of homes73% of homes89% of homes
Price per ft²pricier than$31076% of homes72% of homes82% of homes
Living areabigger than3,028 ft²72% of homes67% of homes81% of homes
Lot sizebigger than0.6 ac71% of homes64% of homes80% of homes
Year builtnewer than198980% of homes69% of homes73% of homes

About 1820 Thornbury Dr

How much is 1820 Thornbury Dr, Ambler, PA worth?

The TopHap Estimate for 1820 Thornbury Dr, Ambler, PA is $939,172 as of Sep 24, 2026. The likely range is $876,015 to $1,002,329. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1820 Thornbury Dr, Ambler, PA last sell?

1820 Thornbury Dr, Ambler, PA last sold on Aug 14, 2002 for $475,000, according to the county's recorded deed.

How big is 1820 Thornbury Dr, Ambler, PA?

1820 Thornbury Dr, Ambler, PA has 4 bedrooms, 2.5 bathrooms, 3,028 square feet of living space and a 0.60-acre lot.

When was 1820 Thornbury Dr, Ambler, PA built?

1820 Thornbury Dr, Ambler, PA was built in 1989, making it 37 years old. It is a colonial home. The building has 2 stories.

What schools serve 1820 Thornbury Dr, Ambler, PA?

1820 Thornbury Dr, Ambler, PA is assigned to Maple Glen Elementary School (elementary), rated A; Upper Dublin High School (high), rated A+; Sandy Run Middle School (middle), rated A. All sit in Upper Dublin School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1820 Thornbury Dr, Ambler, PA compare to other homes in Ambler 19002?

Among the 11,407 homes in Ambler 19002, it is worth more than 73% of them ($939,172 against a typical $716,957), its price per square foot is higher than 72% of them ($310 against a typical $282), it is bigger than 67% of them (3,028 ft² against a typical 2,490 ft²), its lot is bigger than 64% of them (0.6 ac against a typical 0.39 ac) and it is newer than 69% of them (1989 against a typical 1977). Measured against all of Montgomery County, it is worth more than 89% 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 1820 Thornbury Dr, Ambler, PA?

The 2026 property tax bill for 1820 Thornbury Dr, Ambler, PA was $14,663. The county assessed it at $278,340.

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