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Single Family ResidenceResidential
$1,351,802$184 / 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 90How 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 $2,581,013 on Dec 12, 2025

42520 CARNFORTH CT

ASHBURN, VA 20148
5
Beds
6.5
Baths
7,365 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.
0.48 ac
Lot SizeThe size of the land the home sits on, from county records.
2025
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$1.4M
$1.2M low$1.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$2,581,013 · Dec 12, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,579 (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.$2,432,160 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$439,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,992,360
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$439,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,432,160

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.55
65
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
79
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
82
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
34
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.31 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
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyLOUDOUN
Lot (acres)The size of the land the home sits on, from county records.0.48
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

H
Stone Bridge High SchoolA+
High · Grades 9–12 · 1.3 mi
M
Trailside Middle SchoolA+
Middle · Grades 6–8 · 1.9 mi
E
Cedar Lane Elementary SchoolA-
Elementary · Grades PK–5 · 2.2 mi

District: Loudoun County Public Schools

Neighborhood · ZIP 20148These 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.20
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.5%
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.56,606
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,496 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$194,877
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$227,317
Average tempThe average temperature here across a full year.54°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

42520 Carnforth Ct 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 90% of homes in Ashburn 20148
  • Among the lowest price per square foot in Loudoun County
  • Bigger than 98% of homes in Ashburn 20148
  • Has a bigger lot than 93% of homes in Ashburn 20148
  • Among the newest homes in Ashburn 20148

What homes are worth in Ashburn 20148

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

This home
$376K$1.9M

This home is worth more than 90% of homes in Ashburn 20148.

How it measures up in Ashburn 20148

The dot is this home. The mark in the middle is the typical home in Ashburn 20148.

Estimated value$1,351,802
CheaperTypical $871,424Pricier

Pricier than 90% of homes nearby

Price per ft²$184
CheaperTypical $283Pricier

Cheaper than almost all homes nearby

Living area7,365 ft²
SmallerTypical 3,073 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.48 ac
SmallerTypical 0.11 acBigger

Bigger than 93% of homes nearby

Year built2025
OlderTypical 2012Newer

Newer than almost all homes nearby

How 42520 Carnforth Ct ranks against every home in each area.
MeasureThis homeAshburn 20148Loudoun County
Estimated valuepricier than$1,351,80290% of homes89% of homes
Price per ft²pricier than$184almost no homesalmost no homes
Living areabigger than7,365 ft²98% of homes98% of homes
Lot sizebigger than0.48 ac93% of homes82% of homes
Year builtnewer than2025almost all homesalmost all homes

About 42520 Carnforth Ct

How much is 42520 Carnforth Ct, Ashburn, VA worth?

The TopHap Estimate for 42520 Carnforth Ct, Ashburn, VA is $1,351,802 as of Aug 30, 2026. The likely range is $1,219,959 to $1,483,645. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 42520 Carnforth Ct, Ashburn, VA last sell?

42520 Carnforth Ct, Ashburn, VA last sold on Dec 12, 2025 for $2,581,013, according to the county's recorded deed.

How big is 42520 Carnforth Ct, Ashburn, VA?

42520 Carnforth Ct, Ashburn, VA has 5 bedrooms, 6.5 bathrooms, 7,365 square feet of living space and a 0.48-acre lot.

When was 42520 Carnforth Ct, Ashburn, VA built?

42520 Carnforth Ct, Ashburn, VA was built in 2025, making it 1 years old. It is a colonial home. The building has 2 stories.

What schools serve 42520 Carnforth Ct, Ashburn, VA?

42520 Carnforth Ct, Ashburn, VA is assigned to Stone Bridge High School (high), rated A+; Trailside Middle School (middle), rated A+; Cedar Lane Elementary School (elementary), rated A-. All sit in Loudoun County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 42520 Carnforth Ct, Ashburn, VA compare to other homes in Ashburn 20148?

Among the 20,909 homes in Ashburn 20148, it is worth more than 90% of them ($1,351,802 against a typical $871,424), its price per square foot is higher than almost none of them ($184 against a typical $283), it is bigger than 98% of them (7,365 ft² against a typical 3,073 ft²), its lot is bigger than 93% of them (0.48 ac against a typical 0.11 ac) and it is newer than almost all of them (2025 against a typical 2012). Measured against all of Loudoun County, it is worth more than 89% 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 42520 Carnforth Ct, Ashburn, VA?

The 2026 property tax bill for 42520 Carnforth Ct, Ashburn, VA was $19,579. The county assessed it at $2,432,160.

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