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Single Family ResidenceResidential
$305,515$193 / 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 Sep 24, 2026
Last sold for $121,000 on Sep 22, 2014

509 POTOMAC ST

BRUNSWICK, MD 21716
1
Baths
1,584 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.
2,850 ft²
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$306K
$273K low$338K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$121,000 · Sep 22, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,799 (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.$239,600 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$224,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$254,900

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
12
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
79
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
83
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
34
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

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.Conventional
CountyFREDERICK
Lot (acres)The size of the land the home sits on, from county records.0.07
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.Radiant
CoolingThe type of cooling or air conditioning in the home.Yes
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 · 374 ft²

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(4)

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

E
Brunswick Elementary SchoolB+
Elementary · Grades KG–5 · 0.3 mi
H
Brunswick High SchoolB+
High · Grades 9–12 · 1.3 mi
M
Brunswick Middle SchoolB
Middle · Grades 6–8 · 1.6 mi

District: Frederick County Public Schools

Neighborhood · ZIP 21716These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.73
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.6,695
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,110 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,673
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,880
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.42 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 Potomac 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 87% of homes in Frederick County
  • Costs less per square foot than 80% of homes in Frederick County
  • Smaller than 76% of homes in Frederick County
  • Has a smaller lot than 90% of homes in Brunswick 21716
  • Older than 90% of homes in Frederick County

What homes are worth in Brunswick 21716

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

This home
$237K$857K

This home is worth more than 22% of homes in Brunswick 21716.

How it measures up in Brunswick 21716

The dot is this home. The mark in the middle is the typical home in Brunswick 21716.

Estimated value$305,515
CheaperTypical $401,291Pricier

Pricier than 22% of homes nearby

Price per ft²$193
CheaperTypical $208Pricier

Pricier than 33% of homes nearby

Living area1,584 ft²
SmallerTypical 1,952 ft²Bigger

Bigger than 35% of homes nearby

Lot size2,850 ft²
SmallerTypical 0.16 acBigger

Bigger than 10% of homes nearby

Year built1910
OlderTypical 1982Newer

Newer than 23% of homes nearby

How 509 Potomac St ranks against every home in each area.
MeasureThis homeBrunswick 21716Frederick County
Estimated valuepricier than$305,51522% of homes13% of homes
Price per ft²pricier than$19333% of homes20% of homes
Living areabigger than1,584 ft²35% of homes24% of homes
Lot sizebigger than2,850 ft²10% of homes25% of homes
Year builtnewer than191023% of homes10% of homes

About 509 Potomac St

How much is 509 Potomac St, Brunswick, MD worth?

The TopHap Estimate for 509 Potomac St, Brunswick, MD is $305,515 as of Sep 24, 2026. The likely range is $273,241 to $337,789. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Potomac St, Brunswick, MD last sell?

509 Potomac St, Brunswick, MD last sold on Sep 22, 2014 for $121,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 509 Potomac St, Brunswick, MD?

509 Potomac St, Brunswick, MD has 1 bathrooms, 1,584 square feet of living space and a 0.07-acre lot.

When was 509 Potomac St, Brunswick, MD built?

509 Potomac St, Brunswick, MD was built in 1910, making it 116 years old. It is a conventional home. The building has 2 stories.

What schools serve 509 Potomac St, Brunswick, MD?

509 Potomac St, Brunswick, MD is assigned to Brunswick Elementary School (elementary), rated B+; Brunswick High School (high), rated B+; Brunswick Middle School (middle), rated B. All sit in Frederick County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Potomac St, Brunswick, MD compare to other homes in Brunswick 21716?

Among the 3,205 homes in Brunswick 21716, it is worth more than 22% of them ($305,515 against a typical $401,291), its price per square foot is higher than 33% of them ($193 against a typical $208), it is bigger than 35% of them (1,584 ft² against a typical 1,952 ft²), its lot is bigger than 10% of them (2,850 ft² against a typical 0.16 ac) and it is newer than 23% of them (1910 against a typical 1982). Measured against all of Frederick County, it is worth more than 13% 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 Potomac St, Brunswick, MD?

The 2025 property tax bill for 509 Potomac St, Brunswick, MD was $3,799. The county assessed it at $239,600.

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