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Single Family ResidenceResidential
$752,348$464 / 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 86How 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 $739,000 on Jan 28, 2026

8449 THAMES ST

SPRINGFIELD, VA 22151
4
Beds
2
Baths
1,620 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.
0.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$752K
$649K low$856K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$739,000 · Jan 28, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,338 (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.$721,260 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$312,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$409,260
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$721,260
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$721,260

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.162 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
CountyFairfax
Lot (acres)The size of the land the home sits on, from county records.0.32
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.BalconyDeck · 276 ft²Patio · 564 ft²Porch · 84 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
Kings Park Elementary SchoolA-
Elementary · Grades PK–3 · 0.5 mi
M
Lake Braddock Secondary SchoolA
Middle · Grades 7–12 · 1.8 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22151These 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.46
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.35

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.18,255
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,467 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$132,384
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$160,161
Average tempThe average temperature here across a full year.56°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.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

8449 Thames 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 70% of homes in Springfield 22151
  • Bigger than 69% of homes in Springfield 22151
  • Has a bigger lot than 81% of homes in Springfield 22151
  • Older than 83% of homes in Fairfax County

What homes are worth in Springfield 22151

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

This home
$535K$1.2M

This home is worth more than 70% of homes in Springfield 22151.

How it measures up in Springfield 22151

The dot is this home. The mark in the middle is the typical home in Springfield 22151.

Estimated value$752,348
CheaperTypical $693,858Pricier

Pricier than 70% of homes nearby

Price per ft²$464
CheaperTypical $472Pricier

Pricier than 47% of homes nearby

Living area1,620 ft²
SmallerTypical 1,424 ft²Bigger

Bigger than 69% of homes nearby

Lot size0.32 ac
SmallerTypical 0.26 acBigger

Bigger than 81% of homes nearby

Year built1963
OlderTypical 1962Newer

Newer than 67% of homes nearby

How 8449 Thames St ranks against every home in each area.
MeasureThis homeSpringfield 22151Fairfax County
Estimated valuepricier than$752,34870% of homes48% of homes
Price per ft²pricier than$46447% of homes64% of homes
Living areabigger than1,620 ft²69% of homes49% of homes
Lot sizebigger than0.32 ac81% of homes71% of homes
Year builtnewer than196367% of homes17% of homes

About 8449 Thames St

How much is 8449 Thames St, Springfield, VA worth?

The TopHap Estimate for 8449 Thames St, Springfield, VA is $752,348 as of Aug 30, 2026. The likely range is $648,852 to $855,844. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8449 Thames St, Springfield, VA last sell?

8449 Thames St, Springfield, VA last sold on Jan 28, 2026 for $739,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8449 Thames St, Springfield, VA?

8449 Thames St, Springfield, VA has 4 bedrooms, 2 bathrooms, 1,620 square feet of living space and a 0.32-acre lot.

When was 8449 Thames St, Springfield, VA built?

8449 Thames St, Springfield, VA was built in 1963, making it 63 years old. The building has 1 story.

What schools serve 8449 Thames St, Springfield, VA?

8449 Thames St, Springfield, VA is assigned to Kings Park Elementary School (elementary), rated A-; Lake Braddock Secondary School (middle), rated A. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8449 Thames St, Springfield, VA compare to other homes in Springfield 22151?

Among the 5,409 homes in Springfield 22151, it is worth more than 70% of them ($752,348 against a typical $693,858), its price per square foot is higher than 47% of them ($464 against a typical $472), it is bigger than 69% of them (1,620 ft² against a typical 1,424 ft²), its lot is bigger than 81% of them (0.32 ac against a typical 0.26 ac) and it is newer than 67% of them (1963 against a typical 1962). Measured against all of Fairfax County, it is worth more than 48% 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 8449 Thames St, Springfield, VA?

The 2025 property tax bill for 8449 Thames St, Springfield, VA was $8,338. The county assessed it at $721,260.

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