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Single Family ResidenceResidential
$1,604,617$362 / 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 95How 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 $1,352,000 on Jun 25, 2021

42 ROSEMONT AVE

BRYN MAWR, PA 19010
8
Beds
3.5
Baths
4,430 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.
0.45 ac
Lot SizeThe size of the land the home sits on, from county records.
1875
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
14
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.6M
$1.5M low$1.7M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,352,000 · Jun 25, 2021
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$604,617
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$483,694
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.60%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$1,000,000
HARBORONE MORTGAGE LLC · recorded Jun 25, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,705 (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.$300,000 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$300,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$300,000

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.0.45
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
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.Porch · 924 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.

H
Harriton High SchoolA+
High · Grades 9–12 · 1.1 mi
M
Black Rock Middle SchoolA
Middle · Grades 5–8 · 1.5 mi
E
Gladwyne Elementary SchoolA+
Elementary · Grades KG–4 · 2.5 mi

District: Lower Merion School District

Neighborhood · ZIP 19010These 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.81
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 100.84

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.22,289
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,632 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$147,588
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$206,065
Average tempThe average temperature here across a full year.54°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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

42 Rosemont Ave 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 98% of homes in Montgomery County
  • Costs more per square foot than 93% of homes in Montgomery County
  • Bigger than 94% of homes in Montgomery County
  • Has a bigger lot than 72% of homes in Montgomery County
  • Among the oldest homes in Bryn Mawr 19010

What homes are worth in Bryn Mawr 19010

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

This home
$172K$3.6M

This home is worth more than 76% of homes in Bryn Mawr 19010.

How it measures up in Bryn Mawr 19010

The dot is this home. The mark in the middle is the typical home in Bryn Mawr 19010.

Estimated value$1,604,617
CheaperTypical $1,070,693Pricier

Pricier than 76% of homes nearby

Price per ft²$362
CheaperTypical $374Pricier

Pricier than 44% of homes nearby

Living area4,430 ft²
SmallerTypical 2,531 ft²Bigger

Bigger than 79% of homes nearby

Lot size0.45 ac
SmallerTypical 0.33 acBigger

Bigger than 58% of homes nearby

Year built1875
OlderTypical 1953Newer

Older than almost all homes nearby

How 42 Rosemont Ave ranks against every home in each area.
MeasureThis homeBryn Mawr 19010Montgomery County
Estimated valuepricier than$1,604,61776% of homes98% of homes
Price per ft²pricier than$36244% of homes93% of homes
Living areabigger than4,430 ft²79% of homes94% of homes
Lot sizebigger than0.45 ac58% of homes72% of homes
Year builtnewer than1875almost no homes2% of homes

About 42 Rosemont Ave

How much is 42 Rosemont Ave, Bryn Mawr, PA worth?

The TopHap Estimate for 42 Rosemont Ave, Bryn Mawr, PA is $1,604,617 as of Jul 14, 2026. The likely range is $1,526,923 to $1,682,311. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 42 Rosemont Ave, Bryn Mawr, PA last sell?

42 Rosemont Ave, Bryn Mawr, PA last sold on Jun 25, 2021 for $1,352,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 42 Rosemont Ave, Bryn Mawr, PA?

42 Rosemont Ave, Bryn Mawr, PA has 8 bedrooms, 3.5 bathrooms, 4,430 square feet of living space and a 0.45-acre lot.

When was 42 Rosemont Ave, Bryn Mawr, PA built?

42 Rosemont Ave, Bryn Mawr, PA was built in 1875, making it 151 years old. It is a colonial home. The building has 2 stories.

What schools serve 42 Rosemont Ave, Bryn Mawr, PA?

42 Rosemont Ave, Bryn Mawr, PA is assigned to Harriton High School (high), rated A+; Black Rock Middle School (middle), rated A; Gladwyne Elementary School (elementary), rated A+. All sit in Lower Merion School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 42 Rosemont Ave, Bryn Mawr, PA compare to other homes in Bryn Mawr 19010?

Among the 6,114 homes in Bryn Mawr 19010, it is worth more than 76% of them ($1,604,617 against a typical $1,070,693), its price per square foot is higher than 44% of them ($362 against a typical $374), it is bigger than 79% of them (4,430 ft² against a typical 2,531 ft²), its lot is bigger than 58% of them (0.45 ac against a typical 0.33 ac) and it is newer than almost none of them (1875 against a typical 1953). Measured against all of Montgomery County, it is worth more than 98% 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 42 Rosemont Ave, Bryn Mawr, PA?

The 2026 property tax bill for 42 Rosemont Ave, Bryn Mawr, PA was $13,705. The county assessed it at $300,000.

Closest homes

More homes in Bryn Mawr 19010

Assigned schools

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See this home in context

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