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Single Family ResidenceResidential
$1,092,122$609 / 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 88How 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 $925,000 on Mar 14, 2024

3102 MOSBY ST

ALEXANDRIA, VA 22305
2
Baths
1,794 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$963K low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$925,000 · Mar 14, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,356 (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.$927,199 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$566,428
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$360,771
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$854,969
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$927,199

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyALEXANDRIA CITY
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1995
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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 · 140 ft²Patio · 140 ft²Porch · 180 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
Mount Vernon Elementary SchoolD+
Elementary · Grades KG–5 · 0.5 mi
H
Alexandria City High SchoolD
High · Grades 9–12 · 1.3 mi
M
George Washington Middle SchoolC+
Middle · Grades 6–8 · 1.4 mi

District: Alexandria City Public Schools

Neighborhood · ZIP 22305These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.34

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.18,897
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.13,519 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,742
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$145,092
Average tempThe average temperature here across a full year.56°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.63%

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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

3102 Mosby St 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 Alexandria city County
  • Costs more per square foot than 78% of homes in Alexandria 22305
  • Bigger than 65% of homes in Potomac West
  • Has a bigger lot than 92% of homes in Potomac West
  • Newer than 69% of homes in Potomac West

What homes are worth in Alexandria 22305

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

This home
$255K$1.8M

This home is worth more than 73% of homes in Alexandria 22305.

How it measures up in Alexandria 22305

The dot is this home. The mark in the middle is the typical home in Alexandria 22305.

Estimated value$1,092,122
CheaperTypical $828,869Pricier

Pricier than 73% of homes nearby

Price per ft²$609
CheaperTypical $527Pricier

Pricier than 78% of homes nearby

Living area1,794 ft²
SmallerTypical 1,606 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.18 ac
SmallerTypical 3,006 ft²Bigger

Bigger than 80% of homes nearby

Year built1954
OlderTypical 1950Newer

Newer than 59% of homes nearby

How 3102 Mosby St ranks against every home in each area.
MeasureThis homePotomac WestAlexandria 22305Alexandria city County
Estimated valuepricier than$1,092,12269% of homes73% of homes76% of homes
Price per ft²pricier than$60955% of homes78% of homes76% of homes
Living areabigger than1,794 ft²65% of homes63% of homes65% of homes
Lot sizebigger than0.18 ac92% of homes80% of homes81% of homes
Year builtnewer than195469% of homes59% of homes31% of homes

About 3102 Mosby St

How much is 3102 Mosby St, Alexandria, VA worth?

The TopHap Estimate for 3102 Mosby St, Alexandria, VA is $1,092,122 as of Sep 24, 2026. The likely range is $962,831 to $1,221,413. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3102 Mosby St, Alexandria, VA last sell?

3102 Mosby St, Alexandria, VA last sold on Mar 14, 2024 for $925,000, according to the county's recorded deed.

How big is 3102 Mosby St, Alexandria, VA?

3102 Mosby St, Alexandria, VA has 2 bathrooms, 1,794 square feet of living space and a 0.18-acre lot.

When was 3102 Mosby St, Alexandria, VA built?

3102 Mosby St, Alexandria, VA was built in 1954, making it 72 years old. The building has 2 stories.

What schools serve 3102 Mosby St, Alexandria, VA?

3102 Mosby St, Alexandria, VA is assigned to Mount Vernon Elementary School (elementary), rated D+; Alexandria City High School (high), rated D; George Washington Middle School (middle), rated C+. All sit in Alexandria City Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3102 Mosby St, Alexandria, VA compare to other homes in Alexandria 22305?

Among the 3,417 homes in Alexandria 22305, it is worth more than 73% of them ($1,092,122 against a typical $828,869), its price per square foot is higher than 78% of them ($609 against a typical $527), it is bigger than 63% of them (1,794 ft² against a typical 1,606 ft²), its lot is bigger than 80% of them (0.18 ac against a typical 3,006 ft²) and it is newer than 59% of them (1954 against a typical 1950). Measured against all of Alexandria city County, it is worth more than 76% 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 3102 Mosby St, Alexandria, VA?

The 2025 property tax bill for 3102 Mosby St, Alexandria, VA was $11,356. The county assessed it at $927,199.

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