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Single Family ResidenceResidential
$365,614$408 / 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 94How 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 $149,500 on Oct 8, 2002

18030 HERR LN

BOONSBORO, MD 21713
1.5
Baths
896 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.
4 ac
Lot SizeThe size of the land the home sits on, from county records.
1972
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$366K
$345K low$387K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$149,500 · Oct 8, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,009 (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.$284,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$100,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$184,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$261,333
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$284,800

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
CountyWASHINGTON
Lot (acres)The size of the land the home sits on, from county records.4.00
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Electric
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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.Porch · 90 ft²

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.

E
Rockland Woods Elementary SchoolB
Elementary · Grades PK–5 · 3.0 mi
M
Springfield Middle SchoolC+
Middle · Grades 6–8 · 5.6 mi
H
Williamsport High SchoolC+
High · Grades 9–12 · 5.7 mi

District: Washington County Public Schools

Neighborhood · ZIP 21713These 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.64
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.75
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.12,401
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.291 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,947
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,682
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

18030 Herr 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.

  • Among the highest price per square foot in Washington County
  • Smaller than 96% of homes in Boonsboro 21713
  • Has a bigger lot than 91% of homes in Washington County

What homes are worth in Boonsboro 21713

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

This home
$201K$907K

This home is worth more than 39% of homes in Boonsboro 21713.

How it measures up in Boonsboro 21713

The dot is this home. The mark in the middle is the typical home in Boonsboro 21713.

Estimated value$365,614
CheaperTypical $407,003Pricier

Pricier than 39% of homes nearby

Price per ft²$408
CheaperTypical $235Pricier

Pricier than almost all homes nearby

Living area896 ft²
SmallerTypical 1,734 ft²Bigger

Bigger than 4% of homes nearby

Lot size4 ac
SmallerTypical 0.98 acBigger

Bigger than 86% of homes nearby

Year built1972
OlderTypical 1980Newer

Newer than 40% of homes nearby

How 18030 Herr Ln ranks against every home in each area.
MeasureThis homeBoonsboro 21713Washington County
Estimated valuepricier than$365,61439% of homes63% of homes
Price per ft²pricier than$408almost all homesalmost all homes
Living areabigger than896 ft²4% of homes4% of homes
Lot sizebigger than4 ac86% of homes91% of homes
Year builtnewer than197240% of homes48% of homes

About 18030 Herr Ln

How much is 18030 Herr Ln, Boonsboro, MD worth?

The TopHap Estimate for 18030 Herr Ln, Boonsboro, MD is $365,614 as of Sep 24, 2026. The likely range is $344,569 to $386,659. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18030 Herr Ln, Boonsboro, MD last sell?

18030 Herr Ln, Boonsboro, MD last sold on Oct 8, 2002 for $149,500, according to the county's recorded deed.

How big is 18030 Herr Ln, Boonsboro, MD?

18030 Herr Ln, Boonsboro, MD has 1.5 bathrooms, 896 square feet of living space and a 4.00-acre lot.

When was 18030 Herr Ln, Boonsboro, MD built?

18030 Herr Ln, Boonsboro, MD was built in 1972, making it 54 years old. It is a split foyer home. The building has 1 story.

What schools serve 18030 Herr Ln, Boonsboro, MD?

18030 Herr Ln, Boonsboro, MD is assigned to Rockland Woods Elementary School (elementary), rated B; Springfield Middle School (middle), rated C+; Williamsport High School (high), rated C+. All sit in Washington County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18030 Herr Ln, Boonsboro, MD compare to other homes in Boonsboro 21713?

Among the 3,531 homes in Boonsboro 21713, it is worth more than 39% of them ($365,614 against a typical $407,003), its price per square foot is higher than almost all of them ($408 against a typical $235), it is bigger than 4% of them (896 ft² against a typical 1,734 ft²), its lot is bigger than 86% of them (4 ac against a typical 0.98 ac) and it is newer than 40% of them (1972 against a typical 1980). Measured against all of Washington County, it is worth more than 63% 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 18030 Herr Ln, Boonsboro, MD?

The 2026 property tax bill for 18030 Herr Ln, Boonsboro, MD was $3,009. The county assessed it at $284,800.

More homes on Herr Ln

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