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Single Family ResidenceResidential
$399,980$260 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $225,000 on Aug 12, 2003

420 PROSPECT AVE

WILMINGTON, DE 19803
4
Beds
2.5
Baths
1,540 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.
0.21 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.
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

$400K
$376K low$424K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$225,000 · Aug 12, 2003

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$393,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$73,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$319,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$58,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$363,600

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.54
44
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
71
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
87
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
49
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.Ranch
CountyNEW CASTLE
Lot (acres)The size of the land the home sits on, from county records.0.21
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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

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.

M
Springer Middle SchoolC+
Middle · Grades 6–8 · 0.3 mi
H
Brandywine High SchoolC-
High · Grades 9–12 · 1.1 mi
E
Lombardy Elementary SchoolB+
Elementary · Grades KG–5 · 1.4 mi

District: Brandywine School District

Neighborhood · ZIP 19803These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.79

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.23,644
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,782 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,140
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$170,761
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.70%

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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

420 Prospect 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 85% of homes in Wilmington 19803
  • Costs more per square foot than 79% of homes in New Castle County
  • Smaller than 77% of homes in Wilmington 19803
  • Has a smaller lot than 72% of homes in Wilmington 19803
  • Older than 71% of homes in New Castle County

What homes are worth in Wilmington 19803

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

This home
$318K$1.1M

This home is worth more than 15% of homes in Wilmington 19803.

How it measures up in Wilmington 19803

The dot is this home. The mark in the middle is the typical home in Wilmington 19803.

Estimated value$399,980
CheaperTypical $516,423Pricier

Pricier than 15% of homes nearby

Price per ft²$260
CheaperTypical $257Pricier

Pricier than 52% of homes nearby

Living area1,540 ft²
SmallerTypical 2,125 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.21 ac
SmallerTypical 0.29 acBigger

Bigger than 28% of homes nearby

Year built1955
OlderTypical 1958Newer

Newer than 40% of homes nearby

How 420 Prospect Ave ranks against every home in each area.
MeasureThis homeWilmington 19803New Castle County
Estimated valuepricier than$399,98015% of homes54% of homes
Price per ft²pricier than$26052% of homes79% of homes
Living areabigger than1,540 ft²23% of homes40% of homes
Lot sizebigger than0.21 ac28% of homes57% of homes
Year builtnewer than195540% of homes29% of homes

About 420 Prospect Ave

How much is 420 Prospect Ave, Wilmington, DE worth?

The TopHap Estimate for 420 Prospect Ave, Wilmington, DE is $399,980 as of Oct 21, 2026. The likely range is $376,338 to $423,622. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 420 Prospect Ave, Wilmington, DE last sell?

420 Prospect Ave, Wilmington, DE last sold on Aug 12, 2003 for $225,000, according to the county's recorded deed.

How big is 420 Prospect Ave, Wilmington, DE?

420 Prospect Ave, Wilmington, DE has 4 bedrooms, 2.5 bathrooms, 1,540 square feet of living space and a 0.21-acre lot.

When was 420 Prospect Ave, Wilmington, DE built?

420 Prospect Ave, Wilmington, DE was built in 1955, making it 71 years old. It is a ranch home. The building has 1 story.

What schools serve 420 Prospect Ave, Wilmington, DE?

420 Prospect Ave, Wilmington, DE is assigned to Springer Middle School (middle), rated C+; Brandywine High School (high), rated C-; Lombardy Elementary School (elementary), rated B+. All sit in Brandywine School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 420 Prospect Ave, Wilmington, DE compare to other homes in Wilmington 19803?

Among the 8,372 homes in Wilmington 19803, it is worth more than 15% of them ($399,980 against a typical $516,423), its price per square foot is higher than 52% of them ($260 against a typical $257), it is bigger than 23% of them (1,540 ft² against a typical 2,125 ft²), its lot is bigger than 28% of them (0.21 ac against a typical 0.29 ac) and it is newer than 40% of them (1955 against a typical 1958). Measured against all of New Castle County, it is worth more than 54% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Prospect Ave

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Assigned schools

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