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Single Family ResidenceResidential
$1,309,863$792 / 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 93How 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 $750,000 on Feb 11, 2008

21 DECATUR AVE

ANNAPOLIS, MD 21403
2
Baths
1,653 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1953
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.3M
$1.2M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$750,000 · Feb 11, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,572 (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.$1,186,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$966,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$219,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,101,067
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,186,200

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.25
99
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.
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.62%
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.0.16
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Baseboard
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 · 144 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
Georgetown East Elementary SchoolC-
Elementary · Grades EE–5 · 2.0 mi
M
Annapolis Middle SchoolC
Middle · Grades 6–8 · 3.3 mi
H
Annapolis High SchoolC
High · Grades 9–12 · 6.4 mi

District: Anne Arundel County Public Schools

Neighborhood · ZIP 21403These 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.130
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.34

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.5%
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.32,838
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,339 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$117,902
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,719
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

21 Decatur Ave 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 96% of homes in Anne Arundel County
  • Among the highest price per square foot in Anne Arundel County
  • Smaller than 80% of homes in Highland Beach
  • Has a smaller lot than 91% of homes in Highland Beach
  • Older than 87% of homes in Annapolis 21403

What homes are worth in Annapolis 21403

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

This home
$258K$2.9M

This home is worth more than 86% of homes in Annapolis 21403.

How it measures up in Annapolis 21403

The dot is this home. The mark in the middle is the typical home in Annapolis 21403.

Estimated value$1,309,863
CheaperTypical $663,435Pricier

Pricier than 86% of homes nearby

Price per ft²$792
CheaperTypical $365Pricier

Pricier than 95% of homes nearby

Living area1,653 ft²
SmallerTypical 1,715 ft²Bigger

Bigger than 47% of homes nearby

Lot size0.16 ac
SmallerTypical 0.2 acBigger

Bigger than 40% of homes nearby

Year built1953
OlderTypical 1980Newer

Newer than 13% of homes nearby

How 21 Decatur Ave ranks against every home in each area.
MeasureThis homeHighland BeachAnnapolis 21403Anne Arundel County
Estimated valuepricier than$1,309,86372% of homes86% of homes96% of homes
Price per ft²pricier than$79292% of homes95% of homesalmost all homes
Living areabigger than1,653 ft²20% of homes47% of homes39% of homes
Lot sizebigger than0.16 ac9% of homes40% of homes40% of homes
Year builtnewer than195314% of homes13% of homes13% of homes

About 21 Decatur Ave

How much is 21 Decatur Ave, Annapolis, MD worth?

The TopHap Estimate for 21 Decatur Ave, Annapolis, MD is $1,309,863 as of Sep 24, 2026. The likely range is $1,216,886 to $1,402,840. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Decatur Ave, Annapolis, MD last sell?

21 Decatur Ave, Annapolis, MD last sold on Feb 11, 2008 for $750,000, according to the county's recorded deed.

How big is 21 Decatur Ave, Annapolis, MD?

21 Decatur Ave, Annapolis, MD has 2 bathrooms, 1,653 square feet of living space and a 0.16-acre lot.

When was 21 Decatur Ave, Annapolis, MD built?

21 Decatur Ave, Annapolis, MD was built in 1953, making it 73 years old. It is a conventional home. The building has 1 story.

What schools serve 21 Decatur Ave, Annapolis, MD?

21 Decatur Ave, Annapolis, MD is assigned to Georgetown East Elementary School (elementary), rated C-; Annapolis Middle School (middle), rated C; 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 21 Decatur Ave, Annapolis, MD compare to other homes in Annapolis 21403?

Among the 11,835 homes in Annapolis 21403, it is worth more than 86% of them ($1,309,863 against a typical $663,435), its price per square foot is higher than 95% of them ($792 against a typical $365), it is bigger than 47% of them (1,653 ft² against a typical 1,715 ft²), its lot is bigger than 40% of them (0.16 ac against a typical 0.2 ac) and it is newer than 13% of them (1953 against a typical 1980). Measured against all of Anne Arundel County, it is worth more than 96% 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 21 Decatur Ave, Annapolis, MD?

The 2025 property tax bill for 21 Decatur Ave, Annapolis, MD was $13,572. The county assessed it at $1,186,200.

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