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Single Family ResidenceResidential
$543,740$345 / 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 87How 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

4583 ROUNDHILL RD

ELLICOTT CITY, MD 21043
2
Baths
1,576 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$544K
$472K low$616K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,153 (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.$442,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$219,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$223,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$424,433
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$442,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHOWARD
Lot (acres)The size of the land the home sits on, from county records.0.46
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 With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.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.Patio · 196 ft²

Transaction History(1)

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
Worthington Elementary SchoolA
Elementary · Grades PK–5 · 0.1 mi
M
Ellicott Mills Middle SchoolA-
Middle · Grades 6–8 · 1.0 mi
H
Howard High SchoolA+
High · Grades 9–12 · 1.6 mi

District: Howard County Public Schools

Neighborhood · ZIP 21043These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.48,279
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,799 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,854
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$163,449
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

4583 Roundhill Rd 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 Ellicott City 21043
  • Costs more per square foot than 75% of homes in Howard County
  • Smaller than 69% of homes in Ellicott City 21043
  • Has a bigger lot than 67% of homes in Ellicott City 21043
  • Older than 88% of homes in Howard County

What homes are worth in Ellicott City 21043

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

This home
$286K$1.1M

This home is worth more than 35% of homes in Ellicott City 21043.

How it measures up in Ellicott City 21043

The dot is this home. The mark in the middle is the typical home in Ellicott City 21043.

Estimated value$543,740
CheaperTypical $632,779Pricier

Pricier than 35% of homes nearby

Price per ft²$345
CheaperTypical $311Pricier

Pricier than 72% of homes nearby

Living area1,576 ft²
SmallerTypical 2,028 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.46 ac
SmallerTypical 0.33 acBigger

Bigger than 67% of homes nearby

Year built1969
OlderTypical 1993Newer

Newer than 15% of homes nearby

How 4583 Roundhill Rd ranks against every home in each area.
MeasureThis homeEllicott City 21043Howard County
Estimated valuepricier than$543,74035% of homes38% of homes
Price per ft²pricier than$34572% of homes75% of homes
Living areabigger than1,576 ft²31% of homes32% of homes
Lot sizebigger than0.46 ac67% of homes61% of homes
Year builtnewer than196915% of homes12% of homes

About 4583 Roundhill Rd

How much is 4583 Roundhill Rd, Ellicott City, MD worth?

The TopHap Estimate for 4583 Roundhill Rd, Ellicott City, MD is $543,740 as of Sep 24, 2026. The likely range is $471,546 to $615,934. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4583 Roundhill Rd, Ellicott City, MD last sell?

4583 Roundhill Rd, Ellicott City, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4583 Roundhill Rd, Ellicott City, MD?

4583 Roundhill Rd, Ellicott City, MD has 2 bathrooms, 1,576 square feet of living space and a 0.46-acre lot.

When was 4583 Roundhill Rd, Ellicott City, MD built?

4583 Roundhill Rd, Ellicott City, MD was built in 1969, making it 57 years old. The building has 1 story.

What schools serve 4583 Roundhill Rd, Ellicott City, MD?

4583 Roundhill Rd, Ellicott City, MD is assigned to Worthington Elementary School (elementary), rated A; Ellicott Mills Middle School (middle), rated A-; Howard High School (high), rated A+. All sit in Howard County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4583 Roundhill Rd, Ellicott City, MD compare to other homes in Ellicott City 21043?

Among the 14,444 homes in Ellicott City 21043, it is worth more than 35% of them ($543,740 against a typical $632,779), its price per square foot is higher than 72% of them ($345 against a typical $311), it is bigger than 31% of them (1,576 ft² against a typical 2,028 ft²), its lot is bigger than 67% of them (0.46 ac against a typical 0.33 ac) and it is newer than 15% of them (1969 against a typical 1993). Measured against all of Howard County, it is worth more than 38% 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 4583 Roundhill Rd, Ellicott City, MD?

The 2026 property tax bill for 4583 Roundhill Rd, Ellicott City, MD was $5,153. The county assessed it at $442,900.

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