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Rural ResidenceResidential
$730,881$391 / 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 92How 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 $17,800 on Dec 15, 1983

3840 PROSPECT RD

STREET, MD 21154
2
Baths
1,867 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.
20.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$731K
$674K low$787K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$17,800 · Dec 15, 1983

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,056 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$458,400 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$425,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$491,100

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.133 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.Rural Residence
CountyHARFORD
Lot (acres)The size of the land the home sits on, from county records.20.10
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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 · 170 ft²Shed · 1,500 ft²Porch · 424 ft²

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

H
North Harford High SchoolB-
High · Grades 9–12 · 4.6 mi
E
North Harford Elementary SchoolB+
Elementary · Grades PK–5 · 4.7 mi
M
North Harford Middle SchoolB
Middle · Grades 6–8 · 4.9 mi

District: Harford County Public Schools

Neighborhood · ZIP 21154These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.58

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.6%
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.7,048
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.174 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,957
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,851
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

3840 Prospect Rd 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 92% of homes in Harford County
  • Costs more per square foot than 98% of homes in Harford County
  • Among the largest lots in Harford County
  • Newer than 73% of homes in Street 21154

What homes are worth in Street 21154

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

This home
$231K$1.1M

This home is worth more than 77% of homes in Street 21154.

How it measures up in Street 21154

The dot is this home. The mark in the middle is the typical home in Street 21154.

Estimated value$730,881
CheaperTypical $527,028Pricier

Pricier than 77% of homes nearby

Price per ft²$391
CheaperTypical $273Pricier

Pricier than 95% of homes nearby

Living area1,867 ft²
SmallerTypical 1,932 ft²Bigger

Bigger than 47% of homes nearby

Lot size20.1 ac
SmallerTypical 2.75 acBigger

Bigger than 93% of homes nearby

Year built1998
OlderTypical 1986Newer

Newer than 73% of homes nearby

How 3840 Prospect Rd ranks against every home in each area.
MeasureThis homeStreet 21154Harford County
Estimated valuepricier than$730,88177% of homes92% of homes
Price per ft²pricier than$39195% of homes98% of homes
Living areabigger than1,867 ft²47% of homes59% of homes
Lot sizebigger than20.1 ac93% of homesalmost all homes
Year builtnewer than199873% of homes72% of homes

About 3840 Prospect Rd

How much is 3840 Prospect Rd, Street, MD worth?

The TopHap Estimate for 3840 Prospect Rd, Street, MD is $730,881 as of Sep 24, 2026. The likely range is $674,416 to $787,346. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3840 Prospect Rd, Street, MD last sell?

3840 Prospect Rd, Street, MD last sold on Dec 15, 1983 for $17,800, according to the county's recorded deed.

How big is 3840 Prospect Rd, Street, MD?

3840 Prospect Rd, Street, MD has 2 bathrooms, 1,867 square feet of living space and a 20.10-acre lot.

When was 3840 Prospect Rd, Street, MD built?

3840 Prospect Rd, Street, MD was built in 1998, making it 28 years old. The building has 1 story.

What schools serve 3840 Prospect Rd, Street, MD?

3840 Prospect Rd, Street, MD is assigned to North Harford High School (high), rated B-; North Harford Elementary School (elementary), rated B+; North Harford Middle School (middle), rated B. All sit in Harford County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3840 Prospect Rd, Street, MD compare to other homes in Street 21154?

Among the 2,208 homes in Street 21154, it is worth more than 77% of them ($730,881 against a typical $527,028), its price per square foot is higher than 95% of them ($391 against a typical $273), it is bigger than 47% of them (1,867 ft² against a typical 1,932 ft²), its lot is bigger than 93% of them (20.1 ac against a typical 2.75 ac) and it is newer than 73% of them (1998 against a typical 1986). Measured against all of Harford County, it is worth more than 92% 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 3840 Prospect Rd, Street, MD?

The 2026 property tax bill for 3840 Prospect Rd, Street, MD was $5,056. The county assessed it at $458,400.

More homes on Prospect Rd

Closest homes

More homes in Street 21154

Assigned schools

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See this home in context

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