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Single Family ResidenceResidential
$899,022$338 / 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 96How 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 $550,000 on Mar 3, 2021

4650 ROUNDHILL RD

ELLICOTT CITY, MD 21043
3.5
Baths
2,660 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.
3.76 ac
Lot SizeThe size of the land the home sits on, from county records.
1976
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

$899K
$862K low$936K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$550,000 · Mar 3, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,599 (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.$692,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$291,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$400,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$655,767
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$692,300

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
CountyHOWARD
Lot (acres)The size of the land the home sits on, from county records.3.76
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
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.Deck · 256 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
Worthington Elementary SchoolA
Elementary · Grades PK–5 · 0.4 mi
M
Ellicott Mills Middle SchoolA-
Middle · Grades 6–8 · 1.3 mi
H
Howard High SchoolA+
High · Grades 9–12 · 1.7 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

4650 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 more than 83% of homes in Ellicott City 21043
  • Costs more per square foot than 71% of homes in Howard County
  • Bigger than 75% of homes in Ellicott City 21043
  • Has a bigger lot than 97% of homes in Ellicott City 21043
  • Older than 84% of homes in Ellicott City 21043

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 83% 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$899,022
CheaperTypical $632,779Pricier

Pricier than 83% of homes nearby

Price per ft²$338
CheaperTypical $311Pricier

Pricier than 68% of homes nearby

Living area2,660 ft²
SmallerTypical 2,028 ft²Bigger

Bigger than 75% of homes nearby

Lot size3.76 ac
SmallerTypical 0.33 acBigger

Bigger than 97% of homes nearby

Year built1976
OlderTypical 1993Newer

Newer than 16% of homes nearby

How 4650 Roundhill Rd ranks against every home in each area.
MeasureThis homeEllicott City 21043Howard County
Estimated valuepricier than$899,02283% of homes80% of homes
Price per ft²pricier than$33868% of homes71% of homes
Living areabigger than2,660 ft²75% of homes73% of homes
Lot sizebigger than3.76 ac97% of homes93% of homes
Year builtnewer than197616% of homes23% of homes

About 4650 Roundhill Rd

How much is 4650 Roundhill Rd, Ellicott City, MD worth?

The TopHap Estimate for 4650 Roundhill Rd, Ellicott City, MD is $899,022 as of Sep 24, 2026. The likely range is $861,691 to $936,353. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4650 Roundhill Rd, Ellicott City, MD last sell?

4650 Roundhill Rd, Ellicott City, MD last sold on Mar 3, 2021 for $550,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4650 Roundhill Rd, Ellicott City, MD?

4650 Roundhill Rd, Ellicott City, MD has 3.5 bathrooms, 2,660 square feet of living space and a 3.76-acre lot.

When was 4650 Roundhill Rd, Ellicott City, MD built?

4650 Roundhill Rd, Ellicott City, MD was built in 1976, making it 50 years old. The building has 2 stories.

What schools serve 4650 Roundhill Rd, Ellicott City, MD?

4650 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 4650 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 83% of them ($899,022 against a typical $632,779), its price per square foot is higher than 68% of them ($338 against a typical $311), it is bigger than 75% of them (2,660 ft² against a typical 2,028 ft²), its lot is bigger than 97% of them (3.76 ac against a typical 0.33 ac) and it is newer than 16% of them (1976 against a typical 1993). Measured against all of Howard County, it is worth more than 80% 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 4650 Roundhill Rd, Ellicott City, MD?

The 2026 property tax bill for 4650 Roundhill Rd, Ellicott City, MD was $10,599. The county assessed it at $692,300.

More homes on Roundhill Rd

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Assigned schools

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