Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$273,334$223 / 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 86How 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 $254,000 on Feb 21, 2025

451 HARLEM AVE

PASADENA, MD 21122
1
Baths
1,224 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1968
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$273K
$234K low$312K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$254,000 · Feb 21, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,562 (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.$287,267 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$278,933
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$295,600

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
100
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.
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.168 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.0.14
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
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.Patio · 102 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Pasadena Elementary SchoolA-
Elementary · Grades PK–5 · 1.3 mi
H
Chesapeake High SchoolB
High · Grades 9–12 · 4.4 mi
M
Chesapeake Bay Middle SchoolA-
Middle · Grades 6–8 · 4.6 mi

District: Anne Arundel County Public Schools

Neighborhood · ZIP 21122These 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.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
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.62,585
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,385 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,352
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$145,321
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Owner Tools

Do you own this home?
Claim this home

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

451 Harlem 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 less than 96% of homes in Pasadena 21122
  • Costs less per square foot than 83% of homes in Pasadena 21122
  • Smaller than 85% of homes in Anne Arundel County
  • Has a smaller lot than 71% of homes in Pasadena 21122
  • Older than 70% of homes in Anne Arundel County

What homes are worth in Pasadena 21122

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

This home
$243K$1.2M

This home is worth more than 4% of homes in Pasadena 21122.

How it measures up in Pasadena 21122

The dot is this home. The mark in the middle is the typical home in Pasadena 21122.

Estimated value$273,334
CheaperTypical $442,458Pricier

Pricier than 4% of homes nearby

Price per ft²$223
CheaperTypical $269Pricier

Pricier than 17% of homes nearby

Living area1,224 ft²
SmallerTypical 1,686 ft²Bigger

Bigger than 17% of homes nearby

Lot size0.14 ac
SmallerTypical 0.23 acBigger

Bigger than 29% of homes nearby

Year built1968
OlderTypical 1981Newer

Newer than 34% of homes nearby

How 451 Harlem Ave ranks against every home in each area.
MeasureThis homePasadena 21122Anne Arundel County
Estimated valuepricier than$273,3344% of homes5% of homes
Price per ft²pricier than$22317% of homes18% of homes
Living areabigger than1,224 ft²17% of homes15% of homes
Lot sizebigger than0.14 ac29% of homes35% of homes
Year builtnewer than196834% of homes30% of homes

About 451 Harlem Ave

How much is 451 Harlem Ave, Pasadena, MD worth?

The TopHap Estimate for 451 Harlem Ave, Pasadena, MD is $273,334 as of Sep 24, 2026. The likely range is $234,294 to $312,374. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 451 Harlem Ave, Pasadena, MD last sell?

451 Harlem Ave, Pasadena, MD last sold on Feb 21, 2025 for $254,000, according to the county's recorded deed.

How big is 451 Harlem Ave, Pasadena, MD?

451 Harlem Ave, Pasadena, MD has 1 bathrooms, 1,224 square feet of living space and a 0.14-acre lot.

When was 451 Harlem Ave, Pasadena, MD built?

451 Harlem Ave, Pasadena, MD was built in 1968, making it 58 years old. It is a conventional home. The building has 1 story.

What schools serve 451 Harlem Ave, Pasadena, MD?

451 Harlem Ave, Pasadena, MD is assigned to Pasadena Elementary School (elementary), rated A-; Chesapeake High School (high), rated B; Chesapeake Bay Middle School (middle), rated A-. All sit in Anne Arundel County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 451 Harlem Ave, Pasadena, MD compare to other homes in Pasadena 21122?

Among the 24,337 homes in Pasadena 21122, it is worth more than 4% of them ($273,334 against a typical $442,458), its price per square foot is higher than 17% of them ($223 against a typical $269), it is bigger than 17% of them (1,224 ft² against a typical 1,686 ft²), its lot is bigger than 29% of them (0.14 ac against a typical 0.23 ac) and it is newer than 34% of them (1968 against a typical 1981). Measured against all of Anne Arundel County, it is worth more than 5% 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 451 Harlem Ave, Pasadena, MD?

The 2025 property tax bill for 451 Harlem Ave, Pasadena, MD was $3,562. The county assessed it at $287,267.

More homes on Harlem Ave

Closest homes

More homes in Pasadena 21122

Assigned schools

Explore the area

See this home in context

Open 451 Harlem Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map