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Single Family ResidenceResidential
$503,408$218 / 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 89How 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 $360,000 on Aug 27, 2020

509 CHESTER AVE

ROSEDALE, MD 21237
3 / 1
Baths
2,306 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
2015
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$503K
$448K low$558K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$360,000 · Aug 27, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,895 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$412,500 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$369,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$455,100

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBaltimore
Lot (acres)The size of the land the home sits on, from county records.0.34
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
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.Mixed
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.Deck · 220 ft²Patio · 216 ft²Porch · 115 ft²

Transaction History(5)

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.

E
Red House Run Elementary SchoolB
Elementary · Grades PK–5 · 1.8 mi
H
Overlea High SchoolD
High · Grades 9–12 · 2.8 mi
M
Nottingham Middle School
Middle · Grades 6–8 · 3.8 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21237These 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.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.31,022
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,671 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,346
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,623
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

509 Chester 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 91% of homes in Rosedale 21237
  • Bigger than 91% of homes in Rosedale 21237
  • Has a bigger lot than 87% of homes in Rosedale 21237
  • Newer than 96% of homes in Rosedale 21237

What homes are worth in Rosedale 21237

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

This home
$168K$612K

This home is worth more than 91% of homes in Rosedale 21237.

How it measures up in Rosedale 21237

The dot is this home. The mark in the middle is the typical home in Rosedale 21237.

Estimated value$503,408
CheaperTypical $312,927Pricier

Pricier than 91% of homes nearby

Price per ft²$218
CheaperTypical $217Pricier

Pricier than 51% of homes nearby

Living area2,306 ft²
SmallerTypical 1,344 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.34 ac
SmallerTypical 0.16 acBigger

Bigger than 87% of homes nearby

Year built2015
OlderTypical 1978Newer

Newer than 96% of homes nearby

How 509 Chester Ave ranks against every home in each area.
MeasureThis homeRosedale 21237Baltimore County
Estimated valuepricier than$503,40891% of homes75% of homes
Price per ft²pricier than$21851% of homes39% of homes
Living areabigger than2,306 ft²91% of homes82% of homes
Lot sizebigger than0.34 ac87% of homes77% of homes
Year builtnewer than201596% of homes96% of homes

About 509 Chester Ave

How much is 509 Chester Ave, Rosedale, MD worth?

The TopHap Estimate for 509 Chester Ave, Rosedale, MD is $503,408 as of Jul 14, 2026. The likely range is $448,485 to $558,331. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Chester Ave, Rosedale, MD last sell?

509 Chester Ave, Rosedale, MD last sold on Aug 27, 2020 for $360,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 509 Chester Ave, Rosedale, MD?

509 Chester Ave, Rosedale, MD has 3 bathrooms, 2,306 square feet of living space and a 0.34-acre lot.

When was 509 Chester Ave, Rosedale, MD built?

509 Chester Ave, Rosedale, MD was built in 2015, making it 11 years old. The building has 2 stories.

What schools serve 509 Chester Ave, Rosedale, MD?

509 Chester Ave, Rosedale, MD is assigned to Red House Run Elementary School (elementary), rated B; Overlea High School (high), rated D; Nottingham Middle School (middle). All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Chester Ave, Rosedale, MD compare to other homes in Rosedale 21237?

Among the 9,171 homes in Rosedale 21237, it is worth more than 91% of them ($503,408 against a typical $312,927), its price per square foot is higher than 51% of them ($218 against a typical $217), it is bigger than 91% of them (2,306 ft² against a typical 1,344 ft²), its lot is bigger than 87% of them (0.34 ac against a typical 0.16 ac) and it is newer than 96% of them (2015 against a typical 1978). Measured against all of Baltimore County, it is worth more than 75% 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 509 Chester Ave, Rosedale, MD?

The 2025 property tax bill for 509 Chester Ave, Rosedale, MD was $5,895. The county assessed it at $412,500.

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