Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$551,975$259 / 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 $324,000 on Oct 17, 2003

303 AVALON LN

WESTMINSTER, MD 21158
2.5
Baths
2,128 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.
0.51 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

$552K
$531K low$573K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$324,000 · Oct 17, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,082 (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.$513,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$110,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$403,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$449,933
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$513,800

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.33 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
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.0.51
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.Deck · 320 ft²Porch · 280 ft²

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 · 2.7 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

Do you own this home?
Claim this home

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

303 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 73% of homes in Westminster 21158
  • Bigger than 67% 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$838K

This home is worth more than 73% 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$551,975
CheaperTypical $451,149Pricier

Pricier than 73% of homes nearby

Price per ft²$259
CheaperTypical $254Pricier

Pricier than 56% of homes nearby

Living area2,128 ft²
SmallerTypical 1,760 ft²Bigger

Bigger than 67% of homes nearby

Lot size0.51 ac
SmallerTypical 0.81 acBigger

Bigger than 43% of homes nearby

Year built1986
OlderTypical 1987Newer

Newer than 47% of homes nearby

How 303 Avalon Ln ranks against every home in each area.
MeasureThis homeWestminster 21158Carroll County
Estimated valuepricier than$551,97573% of homes66% of homes
Price per ft²pricier than$25956% of homes43% of homes
Living areabigger than2,128 ft²67% of homes66% of homes
Lot sizebigger than0.51 ac43% of homes45% of homes
Year builtnewer than198647% of homes53% of homes

About 303 Avalon Ln

How much is 303 Avalon Ln, Westminster, MD worth?

The TopHap Estimate for 303 Avalon Ln, Westminster, MD is $551,975 as of Sep 24, 2026. The likely range is $531,287 to $572,663. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 303 Avalon Ln, Westminster, MD last sell?

303 Avalon Ln, Westminster, MD last sold on Oct 17, 2003 for $324,000, according to the county's recorded deed.

How big is 303 Avalon Ln, Westminster, MD?

303 Avalon Ln, Westminster, MD has 2.5 bathrooms, 2,128 square feet of living space and a 0.51-acre lot.

When was 303 Avalon Ln, Westminster, MD built?

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

What schools serve 303 Avalon Ln, Westminster, MD?

303 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 303 Avalon Ln, Westminster, MD compare to other homes in Westminster 21158?

Among the 7,105 homes in Westminster 21158, it is worth more than 73% of them ($551,975 against a typical $451,149), its price per square foot is higher than 56% of them ($259 against a typical $254), it is bigger than 67% of them (2,128 ft² against a typical 1,760 ft²), its lot is bigger than 43% of them (0.51 ac against a typical 0.81 ac) and it is newer than 47% of them (1986 against a typical 1987). Measured against all of Carroll County, it is worth more than 66% 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 303 Avalon Ln, Westminster, MD?

The 2025 property tax bill for 303 Avalon Ln, Westminster, MD was $6,082. The county assessed it at $513,800.

More homes on Avalon Ln

Closest homes

More homes in Westminster 21158

Assigned schools

Explore the area

See this home in context

Open 303 Avalon Ln on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map