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Single Family ResidenceResidential
$565,743$454 / 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
Last sold for $475,000 on Nov 30, 2021

9521 SUDLEY MANOR DR

MANASSAS, VA 20109
3
Beds
3 / 1
Baths
1,247 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.
1971
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$566K
$544K low$587K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$475,000 · Nov 30, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,540 (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.$476,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$141,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$335,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$476,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$476,800

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.46
45
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.
77
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
67
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.10 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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.Bi-Level
CountyPrince William
Lot (acres)The size of the land the home sits on, from county records.0.33
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
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 344 ft²Patio · 344 ft²

Transaction History(4)

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
Sudley Elementary SchoolD-
Elementary · Grades PK–5 · 0.2 mi
M
Unity Braxton Middle SchoolD-
Middle · Grades 6–8 · 1.0 mi
H
Unity Reed High SchoolD
High · Grades 9–12 · 2.2 mi

District: Prince William County Public Schools

Neighborhood · ZIP 20109These 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.136
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 100.38

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.44,389
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,110 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,872
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,871
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

9521 Sudley Manor 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.

  • Worth more than 82% of homes in Manassas 20109
  • Costs more per square foot than 94% of homes in Prince William County
  • Smaller than 83% of homes in Prince William County
  • Has a bigger lot than 92% of homes in Manassas 20109
  • Older than 85% of homes in Prince William County

What homes are worth in Manassas 20109

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

This home
$245K$802K

This home is worth more than 82% of homes in Manassas 20109.

How it measures up in Manassas 20109

The dot is this home. The mark in the middle is the typical home in Manassas 20109.

Estimated value$565,743
CheaperTypical $454,116Pricier

Pricier than 82% of homes nearby

Price per ft²$454
CheaperTypical $309Pricier

Pricier than 93% of homes nearby

Living area1,247 ft²
SmallerTypical 1,372 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.32 ac
SmallerTypical 2,134 ft²Bigger

Bigger than 92% of homes nearby

Year built1971
OlderTypical 1986Newer

Newer than 27% of homes nearby

How 9521 Sudley Manor Dr ranks against every home in each area.
MeasureThis homeManassas 20109Prince William County
Estimated valuepricier than$565,74382% of homes47% of homes
Price per ft²pricier than$45493% of homes94% of homes
Living areabigger than1,247 ft²31% of homes17% of homes
Lot sizebigger than0.32 ac92% of homes76% of homes
Year builtnewer than197127% of homes15% of homes

About 9521 Sudley Manor Dr

How much is 9521 Sudley Manor Dr, Manassas, VA worth?

The TopHap Estimate for 9521 Sudley Manor Dr, Manassas, VA is $565,743 as of Sep 24, 2026. The likely range is $544,344 to $587,142. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9521 Sudley Manor Dr, Manassas, VA last sell?

9521 Sudley Manor Dr, Manassas, VA last sold on Nov 30, 2021 for $475,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 9521 Sudley Manor Dr, Manassas, VA?

9521 Sudley Manor Dr, Manassas, VA has 3 bedrooms, 3 bathrooms, 1,247 square feet of living space and a 0.33-acre lot.

When was 9521 Sudley Manor Dr, Manassas, VA built?

9521 Sudley Manor Dr, Manassas, VA was built in 1971, making it 55 years old. It is a bi-level home. The building has 1 story.

What schools serve 9521 Sudley Manor Dr, Manassas, VA?

9521 Sudley Manor Dr, Manassas, VA is assigned to Sudley Elementary School (elementary), rated D-; Unity Braxton Middle School (middle), rated D-; Unity Reed High School (high), rated D. All sit in Prince William County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9521 Sudley Manor Dr, Manassas, VA compare to other homes in Manassas 20109?

Among the 8,957 homes in Manassas 20109, it is worth more than 82% of them ($565,743 against a typical $454,116), its price per square foot is higher than 93% of them ($454 against a typical $309), it is bigger than 31% of them (1,247 ft² against a typical 1,372 ft²), its lot is bigger than 92% of them (0.32 ac against a typical 2,134 ft²) and it is newer than 27% of them (1971 against a typical 1986). Measured against all of Prince William County, it is worth more than 47% 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 9521 Sudley Manor Dr, Manassas, VA?

The 2024 property tax bill for 9521 Sudley Manor Dr, Manassas, VA was $4,540. The county assessed it at $476,800.

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