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Single Family ResidenceResidential
$679,534$286 / 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 96How 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

9509 ALLEGRO DR

MANASSAS, VA 20112
4
Beds
4 / 1
Baths
2,372 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1995
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$680K
$651K low$708K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,573 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$596,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$173,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$423,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$560,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$596,500

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
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.
70
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
29
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyPrince William
Lot (acres)The size of the land the home sits on, from county records.0.41
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
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 · 210 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
Bennett Elementary SchoolB+
Elementary · Grades PK–5 · 1.2 mi
M
Parkside Middle SchoolC-
Middle · Grades 6–8 · 3.6 mi
H
Brentsville District High SchoolC+
High · Grades 9–12 · 5.0 mi

District: Prince William County Public Schools

Neighborhood · ZIP 20112These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
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.30,416
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.671 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$170,856
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$192,832
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%

Owner Tools

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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

9509 Allegro Dr 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.

  • Bigger than 66% of homes in Prince William County
  • Has a bigger lot than 80% of homes in Prince William County

What homes are worth in Manassas 20112

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

This home
$399K$1.2M

This home is worth more than 38% of homes in Manassas 20112.

How it measures up in Manassas 20112

The dot is this home. The mark in the middle is the typical home in Manassas 20112.

Estimated value$679,534
CheaperTypical $745,982Pricier

Pricier than 38% of homes nearby

Price per ft²$286
CheaperTypical $297Pricier

Pricier than 43% of homes nearby

Living area2,372 ft²
SmallerTypical 2,504 ft²Bigger

Bigger than 45% of homes nearby

Lot size0.41 ac
SmallerTypical 1 acBigger

Bigger than 30% of homes nearby

Year built1995
OlderTypical 1996Newer

Newer than 48% of homes nearby

How 9509 Allegro Dr ranks against every home in each area.
MeasureThis homeManassas 20112Prince William County
Estimated valuepricier than$679,53438% of homes64% of homes
Price per ft²pricier than$28643% of homes37% of homes
Living areabigger than2,372 ft²45% of homes66% of homes
Lot sizebigger than0.41 ac30% of homes80% of homes
Year builtnewer than199548% of homes50% of homes

About 9509 Allegro Dr

How much is 9509 Allegro Dr, Manassas, VA worth?

The TopHap Estimate for 9509 Allegro Dr, Manassas, VA is $679,534 as of Sep 24, 2026. The likely range is $651,039 to $708,029. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9509 Allegro Dr, Manassas, VA last sell?

9509 Allegro Dr, Manassas, VA last sold on Jun 6, 2022, according to the county's recorded deed.

How big is 9509 Allegro Dr, Manassas, VA?

9509 Allegro Dr, Manassas, VA has 4 bedrooms, 4 bathrooms, 2,372 square feet of living space and a 0.41-acre lot.

When was 9509 Allegro Dr, Manassas, VA built?

9509 Allegro Dr, Manassas, VA was built in 1995, making it 31 years old. The building has 2 stories.

What schools serve 9509 Allegro Dr, Manassas, VA?

9509 Allegro Dr, Manassas, VA is assigned to Bennett Elementary School (elementary), rated B+; Parkside Middle School (middle), rated C-; Brentsville District High School (high), rated C+. All sit in Prince William County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9509 Allegro Dr, Manassas, VA compare to other homes in Manassas 20112?

Among the 9,454 homes in Manassas 20112, it is worth more than 38% of them ($679,534 against a typical $745,982), its price per square foot is higher than 43% of them ($286 against a typical $297), it is bigger than 45% of them (2,372 ft² against a typical 2,504 ft²), its lot is bigger than 30% of them (0.41 ac against a typical 1 ac) and it is newer than 48% of them (1995 against a typical 1996). Measured against all of Prince William County, it is worth more than 64% 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 9509 Allegro Dr, Manassas, VA?

The 2024 property tax bill for 9509 Allegro Dr, Manassas, VA was $5,573. The county assessed it at $596,500.

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