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TownhouseResidential
$539,477$341 / 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 97How 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 $407,490 on Apr 30, 2019

42346 ALDER FOREST TER

STERLING, VA 20166
2
Beds
2
Baths
1,584 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.
1,307 ft²
Lot SizeThe size of the land the home sits on, from county records.
2017
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.

Valuation

$539K
$524K low$555K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$407,490 · Apr 30, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,420 (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.$549,110 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$205,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$344,110
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$489,020
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$549,110

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.43
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
78
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
84
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.
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.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyLoudoun
Lot (acres)The size of the land the home sits on, from county records.0.03
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
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
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.Elevator

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.

M
Mercer Middle SchoolA-
Middle · Grades 6–8 · 1.1 mi
E
Elaine E. Thompson Elementary SchoolA
Elementary · Grades PK–5 · 1.1 mi
H
John Champe High SchoolA
High · Grades 9–12 · 1.6 mi

District: Loudoun County Public Schools

Neighborhood · ZIP 20166These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.42

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.95%
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.8.1%
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.18,322
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.838 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,145
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$163,624
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

42346 Alder Forest Ter 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 85% of homes in Loudoun County
  • Costs more per square foot than 79% of homes in Sterling 20166
  • Smaller than 81% of homes in Loudoun County
  • Has a smaller lot than 97% of homes in Loudoun County
  • Newer than 88% of homes in Loudoun County

What homes are worth in Sterling 20166

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

This home
$390K$1.5M

This home is worth more than 24% of homes in Sterling 20166.

How it measures up in Sterling 20166

The dot is this home. The mark in the middle is the typical home in Sterling 20166.

Estimated value$539,477
CheaperTypical $603,102Pricier

Pricier than 24% of homes nearby

Price per ft²$341
CheaperTypical $299Pricier

Pricier than 79% of homes nearby

Living area1,584 ft²
SmallerTypical 2,080 ft²Bigger

Bigger than 20% of homes nearby

Lot size1,307 ft²
SmallerTypical 2,178 ft²Bigger

Bigger than 16% of homes nearby

Year built2017
OlderTypical 2005Newer

Newer than 74% of homes nearby

How 42346 Alder Forest Ter ranks against every home in each area.
MeasureThis homeSterling 20166Loudoun County
Estimated valuepricier than$539,47724% of homes15% of homes
Price per ft²pricier than$34179% of homes55% of homes
Living areabigger than1,584 ft²20% of homes19% of homes
Lot sizebigger than1,307 ft²16% of homes3% of homes
Year builtnewer than201774% of homes88% of homes

About 42346 Alder Forest Ter

How much is 42346 Alder Forest Ter, Sterling, VA worth?

The TopHap Estimate for 42346 Alder Forest Ter, Sterling, VA is $539,477 as of Aug 30, 2026. The likely range is $523,906 to $555,048. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 42346 Alder Forest Ter, Sterling, VA last sell?

42346 Alder Forest Ter, Sterling, VA last sold on Apr 30, 2019 for $407,490, according to the county's recorded deed.

How big is 42346 Alder Forest Ter, Sterling, VA?

42346 Alder Forest Ter, Sterling, VA has 2 bedrooms, 2 bathrooms, 1,584 square feet of living space and a 0.03-acre lot.

When was 42346 Alder Forest Ter, Sterling, VA built?

42346 Alder Forest Ter, Sterling, VA was built in 2017, making it 9 years old. It is a townhouse home. The building has 3 stories.

What schools serve 42346 Alder Forest Ter, Sterling, VA?

42346 Alder Forest Ter, Sterling, VA is assigned to Mercer Middle School (middle), rated A-; Elaine E. Thompson Elementary School (elementary), rated A; John Champe High School (high), rated A. All sit in Loudoun County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 42346 Alder Forest Ter, Sterling, VA compare to other homes in Sterling 20166?

Among the 3,907 homes in Sterling 20166, it is worth more than 24% of them ($539,477 against a typical $603,102), its price per square foot is higher than 79% of them ($341 against a typical $299), it is bigger than 20% of them (1,584 ft² against a typical 2,080 ft²), its lot is bigger than 16% of them (1,307 ft² against a typical 2,178 ft²) and it is newer than 74% of them (2017 against a typical 2005). Measured against all of Loudoun County, it is worth more than 15% 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 42346 Alder Forest Ter, Sterling, VA?

The 2025 property tax bill for 42346 Alder Forest Ter, Sterling, VA was $4,420. The county assessed it at $549,110.

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