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Single Family ResidenceResidential
$1,242,680$393 / 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 84How 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

171 WILLIAMS DR

ANNAPOLIS, MD 21401
2.5
Baths
3,161 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.
0.57 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$1.2M
$1M low$1.4M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,990 (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.$974,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$640,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$333,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$920,233
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$974,000

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.26
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
21
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
9
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.197 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.1 percent flood zone

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.Conventional
CountyANNE ARUNDEL
Lot (acres)The size of the land the home sits on, from county records.0.57
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 1,280 ft²Porch · 120 ft²Boat access

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.

E
Germantown Elementary SchoolC-
Elementary · Grades PK–5 · 0.5 mi
M
Wiley H. Bates Middle SchoolB-
Middle · Grades 6–8 · 1.3 mi
H
Annapolis High SchoolC-
High · Grades 9–12 · 2.8 mi

District: Anne Arundel County Public Schools

Neighborhood · ZIP 21401These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.39,516
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,752 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,570
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,167
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

171 Williams 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 95% of homes in Anne Arundel County
  • Costs more per square foot than 89% of homes in Anne Arundel County
  • Bigger than 88% of homes in West Annapolis / Wardour
  • Has a bigger lot than 89% of homes in West Annapolis / Wardour
  • Older than 84% of homes in Anne Arundel County

What homes are worth in Annapolis 21401

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

This home
$239K$2.7M

This home is worth more than 88% of homes in Annapolis 21401.

How it measures up in Annapolis 21401

The dot is this home. The mark in the middle is the typical home in Annapolis 21401.

Estimated value$1,242,680
CheaperTypical $634,499Pricier

Pricier than 88% of homes nearby

Price per ft²$393
CheaperTypical $337Pricier

Pricier than 68% of homes nearby

Living area3,161 ft²
SmallerTypical 1,868 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.57 ac
SmallerTypical 0.15 acBigger

Bigger than 83% of homes nearby

Year built1955
OlderTypical 1986Newer

Newer than 21% of homes nearby

How 171 Williams Dr ranks against every home in each area.
MeasureThis homeWest Annapolis / WardourAnnapolis 21401Anne Arundel County
Estimated valuepricier than$1,242,68087% of homes88% of homes95% of homes
Price per ft²pricier than$39350% of homes68% of homes89% of homes
Living areabigger than3,161 ft²88% of homes85% of homes88% of homes
Lot sizebigger than0.57 ac89% of homes83% of homes82% of homes
Year builtnewer than195533% of homes21% of homes16% of homes

About 171 Williams Dr

How much is 171 Williams Dr, Annapolis, MD worth?

The TopHap Estimate for 171 Williams Dr, Annapolis, MD is $1,242,680 as of Sep 24, 2026. The likely range is $1,044,848 to $1,440,512. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 171 Williams Dr, Annapolis, MD last sell?

171 Williams Dr, Annapolis, MD last sold on Dec 21, 2007, according to the county's recorded deed.

How big is 171 Williams Dr, Annapolis, MD?

171 Williams Dr, Annapolis, MD has 2.5 bathrooms, 3,161 square feet of living space and a 0.57-acre lot.

When was 171 Williams Dr, Annapolis, MD built?

171 Williams Dr, Annapolis, MD was built in 1955, making it 71 years old. It is a conventional home. The building has 2 stories.

What schools serve 171 Williams Dr, Annapolis, MD?

171 Williams Dr, Annapolis, MD is assigned to Germantown Elementary School (elementary), rated C-; Wiley H. Bates Middle School (middle), rated B-; Annapolis High School (high), rated C-. All sit in Anne Arundel County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 171 Williams Dr, Annapolis, MD compare to other homes in Annapolis 21401?

Among the 14,511 homes in Annapolis 21401, it is worth more than 88% of them ($1,242,680 against a typical $634,499), its price per square foot is higher than 68% of them ($393 against a typical $337), it is bigger than 85% of them (3,161 ft² against a typical 1,868 ft²), its lot is bigger than 83% of them (0.57 ac against a typical 0.15 ac) and it is newer than 21% of them (1955 against a typical 1986). Measured against all of Anne Arundel County, it is worth more than 95% 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 171 Williams Dr, Annapolis, MD?

The 2025 property tax bill for 171 Williams Dr, Annapolis, MD was $10,990. The county assessed it at $974,000.

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