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Single Family ResidenceResidential
$350,377$381 / 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 Aug 30, 2026
Last sold for $217,000 on Oct 3, 2019

800 THOMAS RUN RD

BEL AIR, MD 21015
1
Baths
920 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.
2.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$350K
$321K low$379K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$217,000 · Oct 3, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,524 (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.$226,067 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$222,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$234,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHARFORD
Lot (acres)The size of the land the home sits on, from county records.2.48
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Space
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 · 960 ft²Porch · 408 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
Prospect Mill Elementary SchoolA-
Elementary · Grades PK–5 · 1.1 mi
H
C. Milton Wright High SchoolB+
High · Grades 9–12 · 2.1 mi
M
Southampton Middle SchoolA-
Middle · Grades 6–8 · 2.8 mi

District: Harford County Public Schools

Neighborhood · ZIP 21015These 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.55
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.31,461
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,017 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$127,051
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$146,956
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

800 Thomas Run Rd 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 75% of homes in Bel Air 21015
  • Costs more per square foot than 98% of homes in Bel Air 21015
  • Smaller than 98% of homes in Bel Air 21015
  • Has a bigger lot than 93% of homes in Bel Air 21015
  • Among the oldest homes in Bel Air 21015

What homes are worth in Bel Air 21015

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

This home
$228K$1.1M

This home is worth more than 25% of homes in Bel Air 21015.

How it measures up in Bel Air 21015

The dot is this home. The mark in the middle is the typical home in Bel Air 21015.

Estimated value$350,377
CheaperTypical $480,624Pricier

Pricier than 25% of homes nearby

Price per ft²$381
CheaperTypical $246Pricier

Pricier than 98% of homes nearby

Living area920 ft²
SmallerTypical 1,848 ft²Bigger

Bigger than 2% of homes nearby

Lot size2.48 ac
SmallerTypical 0.31 acBigger

Bigger than 93% of homes nearby

Year built1920
OlderTypical 1993Newer

Older than almost all homes nearby

How 800 Thomas Run Rd ranks against every home in each area.
MeasureThis homeBel Air 21015Harford County
Estimated valuepricier than$350,37725% of homes36% of homes
Price per ft²pricier than$38198% of homes98% of homes
Living areabigger than920 ft²2% of homes4% of homes
Lot sizebigger than2.48 ac93% of homes90% of homes
Year builtnewer than1920almost no homes3% of homes

About 800 Thomas Run Rd

How much is 800 Thomas Run Rd, Bel Air, MD worth?

The TopHap Estimate for 800 Thomas Run Rd, Bel Air, MD is $350,377 as of Aug 30, 2026. The likely range is $321,355 to $379,399. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 800 Thomas Run Rd, Bel Air, MD last sell?

800 Thomas Run Rd, Bel Air, MD last sold on Oct 3, 2019 for $217,000, according to the county's recorded deed.

How big is 800 Thomas Run Rd, Bel Air, MD?

800 Thomas Run Rd, Bel Air, MD has 1 bathrooms, 920 square feet of living space and a 2.48-acre lot.

When was 800 Thomas Run Rd, Bel Air, MD built?

800 Thomas Run Rd, Bel Air, MD was built in 1920, making it 106 years old. The building has 2 stories.

What schools serve 800 Thomas Run Rd, Bel Air, MD?

800 Thomas Run Rd, Bel Air, MD is assigned to Prospect Mill Elementary School (elementary), rated A-; C. Milton Wright High School (high), rated B+; Southampton Middle School (middle), rated A-. All sit in Harford County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 800 Thomas Run Rd, Bel Air, MD compare to other homes in Bel Air 21015?

Among the 11,332 homes in Bel Air 21015, it is worth more than 25% of them ($350,377 against a typical $480,624), its price per square foot is higher than 98% of them ($381 against a typical $246), it is bigger than 2% of them (920 ft² against a typical 1,848 ft²), its lot is bigger than 93% of them (2.48 ac against a typical 0.31 ac) and it is newer than almost none of them (1920 against a typical 1993). Measured against all of Harford County, it is worth more than 36% 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 800 Thomas Run Rd, Bel Air, MD?

The 2026 property tax bill for 800 Thomas Run Rd, Bel Air, MD was $2,524. The county assessed it at $226,067.

More homes on Thomas Run Rd

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