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Single Family ResidenceResidential
$1,187,522$372 / 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 93How 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

1420 KNOX PL

ALEXANDRIA, VA 22304
3.5
Baths
3,192 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
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

$1.2M
$1.1M low$1.3M high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,161,813 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$893,497
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$268,316
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,078,960
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,161,813

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.1975
Lot (acres)The size of the land the home sits on, from county records.0.46
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.Yes
CoolingThe type of cooling or air conditioning in the home.Central
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.Porch · 144 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
James K. Polk Elementary SchoolD+
Elementary · Grades KG–5 · 0.4 mi
M
Francis C. Hammond Middle School
Middle · Grades 6–8 · 0.6 mi
H
Alexandria City High SchoolD
High · Grades 9–12 · 1.4 mi

District: Alexandria City Public Schools

Neighborhood · ZIP 22304These 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.96
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.7%
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.49,490
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,070 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,087
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$127,793
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.42 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

1420 Knox Pl 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 94% of homes in Alexandria 22304
  • Costs less per square foot than 70% of homes in Alexandria city County
  • Bigger than 94% of homes in Alexandria 22304
  • Has a bigger lot than 97% of homes in Alexandria city County
  • Older than 87% of homes in Alexandria 22304

What homes are worth in Alexandria 22304

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

This home
$200K$1.5M

This home is worth more than 94% of homes in Alexandria 22304.

How it measures up in Alexandria 22304

The dot is this home. The mark in the middle is the typical home in Alexandria 22304.

Estimated value$1,187,522
CheaperTypical $474,274Pricier

Pricier than 94% of homes nearby

Price per ft²$372
CheaperTypical $333Pricier

Pricier than 68% of homes nearby

Living area3,192 ft²
SmallerTypical 1,309 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.46 ac
SmallerTypical 1,960 ft²Bigger

Bigger than 95% of homes nearby

Year built1961
OlderTypical 1975Newer

Newer than 13% of homes nearby

How 1420 Knox Pl ranks against every home in each area.
MeasureThis homeSeminary Hill / Strawberry HillAlexandria 22304Alexandria city County
Estimated valuepricier than$1,187,52288% of homes94% of homes80% of homes
Price per ft²pricier than$37257% of homes68% of homes30% of homes
Living areabigger than3,192 ft²89% of homes94% of homes93% of homes
Lot sizebigger than0.46 ac93% of homes95% of homes97% of homes
Year builtnewer than196137% of homes13% of homes38% of homes

About 1420 Knox Pl

How much is 1420 Knox Pl, Alexandria, VA worth?

The TopHap Estimate for 1420 Knox Pl, Alexandria, VA is $1,187,522 as of Sep 24, 2026. The likely range is $1,102,366 to $1,272,678. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1420 Knox Pl, Alexandria, VA last sell?

1420 Knox Pl, Alexandria, VA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1420 Knox Pl, Alexandria, VA?

1420 Knox Pl, Alexandria, VA has 3.5 bathrooms, 3,192 square feet of living space and a 0.46-acre lot.

When was 1420 Knox Pl, Alexandria, VA built?

1420 Knox Pl, Alexandria, VA was built in 1961, making it 65 years old. The building has 1 story.

What schools serve 1420 Knox Pl, Alexandria, VA?

1420 Knox Pl, Alexandria, VA is assigned to James K. Polk Elementary School (elementary), rated D+; Francis C. Hammond Middle School (middle); Alexandria City High School (high), rated D. All sit in Alexandria City Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1420 Knox Pl, Alexandria, VA compare to other homes in Alexandria 22304?

Among the 13,235 homes in Alexandria 22304, it is worth more than 94% of them ($1,187,522 against a typical $474,274), its price per square foot is higher than 68% of them ($372 against a typical $333), it is bigger than 94% of them (3,192 ft² against a typical 1,309 ft²), its lot is bigger than 95% of them (0.46 ac against a typical 1,960 ft²) and it is newer than 13% of them (1961 against a typical 1975). Measured against all of Alexandria city County, it is worth more than 80% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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