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Single Family ResidenceResidential
$569,888$283 / 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 Sep 24, 2026
Last sold for $225,000 on Oct 18, 2013

304 AVALON LN

WESTMINSTER, MD 21158
3.5
Baths
2,016 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.
0.89 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
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

$570K
$524K low$615K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$225,000 · Oct 18, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,983 (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.$527,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$140,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$387,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$475,233
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$527,900

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.177 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.0.89
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
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.Shed · 192 ft²Porch · 240 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
Friendship Valley Elementary SchoolB-
Elementary · Grades PK–5 · 2.1 mi
M
Westminster West Middle SchoolB+
Middle · Grades 6–8 · 2.4 mi
H
Westminster High SchoolA-
High · Grades 9–12 · 2.8 mi

District: Carroll County Public Schools

Neighborhood · ZIP 21158These 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.74
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.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.21,498
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.288 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$112,468
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$135,145
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Owner Tools

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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

304 Avalon Ln 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 76% of homes in Westminster 21158
  • Costs more per square foot than 74% of homes in Westminster 21158

What homes are worth in Westminster 21158

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

This home
$249K$873K

This home is worth more than 76% of homes in Westminster 21158.

How it measures up in Westminster 21158

The dot is this home. The mark in the middle is the typical home in Westminster 21158.

Estimated value$569,888
CheaperTypical $453,171Pricier

Pricier than 76% of homes nearby

Price per ft²$283
CheaperTypical $254Pricier

Pricier than 74% of homes nearby

Living area2,016 ft²
SmallerTypical 1,756 ft²Bigger

Bigger than 62% of homes nearby

Lot size0.89 ac
SmallerTypical 0.79 acBigger

Bigger than 52% of homes nearby

Year built1986
OlderTypical 1987Newer

Newer than 48% of homes nearby

How 304 Avalon Ln ranks against every home in each area.
MeasureThis homeWestminster 21158Carroll County
Estimated valuepricier than$569,88876% of homes68% of homes
Price per ft²pricier than$28374% of homes59% of homes
Living areabigger than2,016 ft²62% of homes61% of homes
Lot sizebigger than0.89 ac52% of homes57% of homes
Year builtnewer than198648% of homes53% of homes

About 304 Avalon Ln

How much is 304 Avalon Ln, Westminster, MD worth?

The TopHap Estimate for 304 Avalon Ln, Westminster, MD is $569,888 as of Sep 24, 2026. The likely range is $524,323 to $615,453. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 304 Avalon Ln, Westminster, MD last sell?

304 Avalon Ln, Westminster, MD last sold on Oct 18, 2013 for $225,000, according to the county's recorded deed.

How big is 304 Avalon Ln, Westminster, MD?

304 Avalon Ln, Westminster, MD has 3.5 bathrooms, 2,016 square feet of living space and a 0.89-acre lot.

When was 304 Avalon Ln, Westminster, MD built?

304 Avalon Ln, Westminster, MD was built in 1986, making it 40 years old. The building has 2 stories.

What schools serve 304 Avalon Ln, Westminster, MD?

304 Avalon Ln, Westminster, MD is assigned to Friendship Valley Elementary School (elementary), rated B-; Westminster West Middle School (middle), rated B+; Westminster High School (high), rated A-. All sit in Carroll County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 304 Avalon Ln, Westminster, MD compare to other homes in Westminster 21158?

Among the 7,105 homes in Westminster 21158, it is worth more than 76% of them ($569,888 against a typical $453,171), its price per square foot is higher than 74% of them ($283 against a typical $254), it is bigger than 62% of them (2,016 ft² against a typical 1,756 ft²), its lot is bigger than 52% of them (0.89 ac against a typical 0.79 ac) and it is newer than 48% of them (1986 against a typical 1987). Measured against all of Carroll County, it is worth more than 68% 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 304 Avalon Ln, Westminster, MD?

The 2025 property tax bill for 304 Avalon Ln, Westminster, MD was $7,983. The county assessed it at $527,900.

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