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Single Family ResidenceResidential
$525,069$361 / 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 92How 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 $228,500 on Feb 19, 2003

9577 ROUTE 99

ELLICOTT CITY, MD 21042
1
Baths
1,456 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.
0.53 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$525K
$483K low$567K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$228,500 · Feb 19, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,290 (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.$458,567 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$426,333
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$490,800

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.0.53
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
Mt. Hebron High SchoolA
High · Grades 9–12 · 0.2 mi
E
St. Johns Lane Elementary SchoolA-
Elementary · Grades KG–5 · 0.7 mi
M
Patapsco Middle SchoolA
Middle · Grades 6–8 · 1.4 mi

District: Howard County Public Schools

Neighborhood · ZIP 21042These 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.48
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 100.37

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.9%
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.43,959
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,188 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$168,351
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$201,624
Average tempThe average temperature here across a full year.54°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

9577 Route 99 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 90% of homes in Ellicott City 21042
  • Costs more per square foot than 81% of homes in Howard County
  • Smaller than 87% of homes in Ellicott City 21042
  • Has a bigger lot than 67% of homes in Howard County
  • Older than 96% of homes in Howard County

What homes are worth in Ellicott City 21042

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

This home
$350K$2M

This home is worth more than 10% of homes in Ellicott City 21042.

How it measures up in Ellicott City 21042

The dot is this home. The mark in the middle is the typical home in Ellicott City 21042.

Estimated value$525,069
CheaperTypical $789,398Pricier

Pricier than 10% of homes nearby

Price per ft²$361
CheaperTypical $326Pricier

Pricier than 74% of homes nearby

Living area1,456 ft²
SmallerTypical 2,416 ft²Bigger

Bigger than 13% of homes nearby

Lot size0.53 ac
SmallerTypical 0.47 acBigger

Bigger than 61% of homes nearby

Year built1957
OlderTypical 1987Newer

Newer than 5% of homes nearby

How 9577 Route 99 ranks against every home in each area.
MeasureThis homeEllicott City 21042Howard County
Estimated valuepricier than$525,06910% of homes33% of homes
Price per ft²pricier than$36174% of homes81% of homes
Living areabigger than1,456 ft²13% of homes26% of homes
Lot sizebigger than0.53 ac61% of homes67% of homes
Year builtnewer than19575% of homes4% of homes

About 9577 Route 99

How much is 9577 Route 99, Ellicott City, MD worth?

The TopHap Estimate for 9577 Route 99, Ellicott City, MD is $525,069 as of Jul 14, 2026. The likely range is $483,387 to $566,751. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9577 Route 99, Ellicott City, MD last sell?

9577 Route 99, Ellicott City, MD last sold on Feb 19, 2003 for $228,500, according to the county's recorded deed.

How big is 9577 Route 99, Ellicott City, MD?

9577 Route 99, Ellicott City, MD has 1 bathrooms, 1,456 square feet of living space and a 0.53-acre lot.

When was 9577 Route 99, Ellicott City, MD built?

9577 Route 99, Ellicott City, MD was built in 1957, making it 69 years old. The building has 1 story.

What schools serve 9577 Route 99, Ellicott City, MD?

9577 Route 99, Ellicott City, MD is assigned to Mt. Hebron High School (high), rated A; St. Johns Lane Elementary School (elementary), rated A-; Patapsco Middle School (middle), rated A. All sit in Howard County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9577 Route 99, Ellicott City, MD compare to other homes in Ellicott City 21042?

Among the 14,278 homes in Ellicott City 21042, it is worth more than 10% of them ($525,069 against a typical $789,398), its price per square foot is higher than 74% of them ($361 against a typical $326), it is bigger than 13% of them (1,456 ft² against a typical 2,416 ft²), its lot is bigger than 61% of them (0.53 ac against a typical 0.47 ac) and it is newer than 5% of them (1957 against a typical 1987). Measured against all of Howard County, it is worth more than 33% 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 9577 Route 99, Ellicott City, MD?

The 2025 property tax bill for 9577 Route 99, Ellicott City, MD was $6,290. The county assessed it at $458,567.

More homes on Route 99

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Assigned schools

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