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Single Family ResidenceResidential
$435,233$299 / 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 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $250,000 on Jul 7, 2015

21 NORTH ST

AMBLER, PA 19002
6
Beds
1
Baths
1,456 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.
3,950 ft²
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$435K
$421K low$449K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$250,000 · Jul 7, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,238 (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.$102,310 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$102,310
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$102,310

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.0.09
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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.Patio · 256 ft²

Transaction History(3)

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
Wissahickon Middle SchoolA-
Middle · Grades 6–8 · 1.1 mi
E
Lower Gwynedd Elementary SchoolA+
Elementary · Grades KG–5 · 1.1 mi
H
Wissahickon High SchoolA
High · Grades 9–12 · 1.3 mi

District: Wissahickon 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

21 North 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 88% of homes in Ambler 19002
  • Costs more per square foot than 77% of homes in Montgomery County
  • Smaller than 86% of homes in Ambler 19002
  • Has a smaller lot than 79% of homes in Ambler 19002
  • Older than 90% of homes in Ambler 19002

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
$291K$2M

This home is worth more than 12% 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$435,233
CheaperTypical $718,703Pricier

Pricier than 12% of homes nearby

Price per ft²$299
CheaperTypical $281Pricier

Pricier than 65% of homes nearby

Living area1,456 ft²
SmallerTypical 2,497 ft²Bigger

Bigger than 14% of homes nearby

Lot size3,950 ft²
SmallerTypical 0.39 acBigger

Bigger than 21% of homes nearby

Year built1920
OlderTypical 1977Newer

Newer than 10% of homes nearby

How 21 North St ranks against every home in each area.
MeasureThis homeAmblerAmbler 19002Montgomery County
Estimated valuepricier than$435,23342% of homes12% of homes35% of homes
Price per ft²pricier than$29972% of homes65% of homes77% of homes
Living areabigger than1,456 ft²39% of homes14% of homes25% of homes
Lot sizebigger than3,950 ft²37% of homes21% of homes25% of homes
Year builtnewer than192031% of homes10% of homes13% of homes

About 21 North St

How much is 21 North St, Ambler, PA worth?

The TopHap Estimate for 21 North St, Ambler, PA is $435,233 as of Jul 14, 2026. The likely range is $420,989 to $449,477. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 North St, Ambler, PA last sell?

21 North St, Ambler, PA last sold on Jul 7, 2015 for $250,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 North St, Ambler, PA?

21 North St, Ambler, PA has 6 bedrooms, 1 bathrooms, 1,456 square feet of living space and a 0.09-acre lot.

When was 21 North St, Ambler, PA built?

21 North St, Ambler, PA was built in 1920, making it 106 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 North St, Ambler, PA?

21 North St, Ambler, PA is assigned to Wissahickon Middle School (middle), rated A-; Lower Gwynedd Elementary School (elementary), rated A+; Wissahickon High School (high), rated A. All sit in Wissahickon School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 North St, Ambler, PA compare to other homes in Ambler 19002?

Among the 11,407 homes in Ambler 19002, it is worth more than 12% of them ($435,233 against a typical $718,703), its price per square foot is higher than 65% of them ($299 against a typical $281), it is bigger than 14% of them (1,456 ft² against a typical 2,497 ft²), its lot is bigger than 21% of them (3,950 ft² against a typical 0.39 ac) and it is newer than 10% of them (1920 against a typical 1977). Measured against all of Montgomery County, it is worth more than 35% 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 North St, Ambler, PA?

The 2026 property tax bill for 21 North St, Ambler, PA was $4,238. The county assessed it at $102,310.

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