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Single Family ResidenceResidential
$423,292$230 / 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 90How 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

1234 ROSEMONT DR

KNOXVILLE, MD 21758
2
Baths
1,843 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.
0.74 ac
Lot SizeThe size of the land the home sits on, from county records.
1913
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$423K
$383K low$464K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,071 (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.$352,467 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$323,933
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$381,000

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.42
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
14
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
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1949
Lot (acres)The size of the land the home sits on, from county records.0.74
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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 · 1,210 ft²

Transaction History(2)

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
Brunswick Elementary SchoolA-
Elementary · Grades KG–5 · 0.9 mi
H
Brunswick High SchoolB
High · Grades 9–12 · 1.4 mi
M
Brunswick Middle SchoolB-
Middle · Grades 6–8 · 1.6 mi

District: Frederick County Public Schools

Neighborhood · ZIP 21758These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.6,484
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.183 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,559
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$131,591
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%

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

1234 Rosemont 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 less than 65% of homes in Frederick County
  • Smaller than 65% of homes in Frederick County
  • Has a bigger lot than 75% of homes in Frederick County
  • Older than 90% of homes in Frederick County

What homes are worth in Knoxville 21758

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

This home
$182K$999K

This home is worth more than 43% of homes in Knoxville 21758.

How it measures up in Knoxville 21758

The dot is this home. The mark in the middle is the typical home in Knoxville 21758.

Estimated value$423,292
CheaperTypical $464,442Pricier

Pricier than 43% of homes nearby

Price per ft²$230
CheaperTypical $230Pricier

Pricier than 50% of homes nearby

Living area1,843 ft²
SmallerTypical 1,918 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.74 ac
SmallerTypical 1.03 acBigger

Bigger than 39% of homes nearby

Year built1913
OlderTypical 1978Newer

Newer than 20% of homes nearby

How 1234 Rosemont Dr ranks against every home in each area.
MeasureThis homeKnoxville 21758Frederick County
Estimated valuepricier than$423,29243% of homes35% of homes
Price per ft²pricier than$23050% of homes51% of homes
Living areabigger than1,843 ft²46% of homes35% of homes
Lot sizebigger than0.74 ac39% of homes75% of homes
Year builtnewer than191320% of homes10% of homes

About 1234 Rosemont Dr

How much is 1234 Rosemont Dr, Knoxville, MD worth?

The TopHap Estimate for 1234 Rosemont Dr, Knoxville, MD is $423,292 as of Jul 14, 2026. The likely range is $382,904 to $463,680. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1234 Rosemont Dr, Knoxville, MD last sell?

1234 Rosemont Dr, Knoxville, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1234 Rosemont Dr, Knoxville, MD?

1234 Rosemont Dr, Knoxville, MD has 2 bathrooms, 1,843 square feet of living space and a 0.74-acre lot.

When was 1234 Rosemont Dr, Knoxville, MD built?

1234 Rosemont Dr, Knoxville, MD was built in 1913, making it 113 years old. It is a conventional home. The building has 1 story.

What schools serve 1234 Rosemont Dr, Knoxville, MD?

1234 Rosemont Dr, Knoxville, MD is assigned to Brunswick Elementary School (elementary), rated A-; 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 1234 Rosemont Dr, Knoxville, MD compare to other homes in Knoxville 21758?

Among the 1,882 homes in Knoxville 21758, it is worth more than 43% of them ($423,292 against a typical $464,442), its price per square foot is higher than 50% of them ($230 against a typical $230), it is bigger than 46% of them (1,843 ft² against a typical 1,918 ft²), its lot is bigger than 39% of them (0.74 ac against a typical 1.03 ac) and it is newer than 20% of them (1913 against a typical 1978). Measured against all of Frederick 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 1234 Rosemont Dr, Knoxville, MD?

The 2025 property tax bill for 1234 Rosemont Dr, Knoxville, MD was $4,071. The county assessed it at $352,467.

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Assigned schools

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