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Single Family ResidenceResidential
$376,161$343 / 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 95How 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 $230,000 on May 7, 2010

185 OPAL AVE

WESTMINSTER, MD 21157
2.5
Baths
1,096 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.
1.02 ac
Lot SizeThe size of the land the home sits on, from county records.
1984
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$376K
$358K low$394K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$230,000 · May 7, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,050 (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.$369,667 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$349,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$410,600

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.Split Foyer
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.1.02
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
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.Deck · 504 ft²Porch · 48 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.

M
Shiloh Middle SchoolA-
Middle · Grades 6–8 · 2.7 mi
E
Hampstead Elementary SchoolA-
Elementary · Grades PK–5 · 2.8 mi
H
Manchester Valley High SchoolB
High · Grades 9–12 · 5.5 mi

District: Carroll County Public Schools

Neighborhood · ZIP 21157These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.41,419
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.542 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,034
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,439
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

185 Opal Ave 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 73% of homes in Carroll County
  • Costs more per square foot than 89% of homes in Westminster 21157
  • Smaller than 90% of homes in Carroll County
  • Has a bigger lot than 65% of homes in Westminster 21157

What homes are worth in Westminster 21157

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

This home
$219K$940K

This home is worth more than 32% of homes in Westminster 21157.

How it measures up in Westminster 21157

The dot is this home. The mark in the middle is the typical home in Westminster 21157.

Estimated value$376,161
CheaperTypical $446,691Pricier

Pricier than 32% of homes nearby

Price per ft²$343
CheaperTypical $259Pricier

Pricier than 89% of homes nearby

Living area1,096 ft²
SmallerTypical 1,732 ft²Bigger

Bigger than 12% of homes nearby

Lot size1.02 ac
SmallerTypical 0.61 acBigger

Bigger than 65% of homes nearby

Year built1984
OlderTypical 1979Newer

Newer than 57% of homes nearby

How 185 Opal Ave ranks against every home in each area.
MeasureThis homeWestminster 21157Carroll County
Estimated valuepricier than$376,16132% of homes27% of homes
Price per ft²pricier than$34389% of homes86% of homes
Living areabigger than1,096 ft²12% of homes10% of homes
Lot sizebigger than1.02 ac65% of homes64% of homes
Year builtnewer than198457% of homes48% of homes

About 185 Opal Ave

How much is 185 Opal Ave, Westminster, MD worth?

The TopHap Estimate for 185 Opal Ave, Westminster, MD is $376,161 as of Sep 24, 2026. The likely range is $358,442 to $393,880. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 185 Opal Ave, Westminster, MD last sell?

185 Opal Ave, Westminster, MD last sold on May 7, 2010 for $230,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 185 Opal Ave, Westminster, MD?

185 Opal Ave, Westminster, MD has 2.5 bathrooms, 1,096 square feet of living space and a 1.02-acre lot.

When was 185 Opal Ave, Westminster, MD built?

185 Opal Ave, Westminster, MD was built in 1984, making it 42 years old. It is a split foyer home. The building has 1 story.

What schools serve 185 Opal Ave, Westminster, MD?

185 Opal Ave, Westminster, MD is assigned to Shiloh Middle School (middle), rated A-; Hampstead Elementary School (elementary), rated A-; Manchester Valley High School (high), rated B. All sit in Carroll County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 185 Opal Ave, Westminster, MD compare to other homes in Westminster 21157?

Among the 12,569 homes in Westminster 21157, it is worth more than 32% of them ($376,161 against a typical $446,691), its price per square foot is higher than 89% of them ($343 against a typical $259), it is bigger than 12% of them (1,096 ft² against a typical 1,732 ft²), its lot is bigger than 65% of them (1.02 ac against a typical 0.61 ac) and it is newer than 57% of them (1984 against a typical 1979). Measured against all of Carroll County, it is worth more than 27% 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 185 Opal Ave, Westminster, MD?

The 2026 property tax bill for 185 Opal Ave, Westminster, MD was $4,050. The county assessed it at $369,667.

More homes on Opal Ave

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Assigned schools

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