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Duplex (2 Units, Any Combination)Residential
$283,952$1,775 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $137,120 on Dec 11, 2020

21 FORREST AVE

CLAYMONT, DE 19703
3
Beds
1
Baths
160 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.
3,049 ft²
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$284K
$269K low$299K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$137,120 · Dec 11, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,048 (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.$263,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$59,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$204,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$41,200

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.46
1
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.
73
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
89
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.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyNEW CASTLE
Lot (acres)The size of the land the home sits on, from county records.0.07
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Claymont Elementary SchoolA
Elementary · Grades KG–5 · 0.5 mi
M
Talley Middle SchoolC+
Middle · Grades 6–12 · 1.9 mi
H
Brandywine High SchoolC-
High · Grades 9–12 · 3.3 mi

District: Brandywine School District

Neighborhood · ZIP 19703These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.16,958
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,224 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$78,483
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,139
Average tempThe average temperature here across a full year.55°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.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

21 Forrest 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 74% of homes in New Castle County
  • Among the highest price per square foot in Claymont 19703
  • Among the smallest homes in Claymont 19703
  • Has a smaller lot than 82% of homes in New Castle County
  • Older than 84% of homes in New Castle County

What homes are worth in Claymont 19703

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

This home
$141K$476K

This home is worth more than 28% of homes in Claymont 19703.

How it measures up in Claymont 19703

The dot is this home. The mark in the middle is the typical home in Claymont 19703.

Estimated value$283,952
CheaperTypical $333,782Pricier

Pricier than 28% of homes nearby

Price per ft²$1775
CheaperTypical $222Pricier

Pricier than almost all homes nearby

Living area160 ft²
SmallerTypical 1,450 ft²Bigger

Smaller than almost all homes nearby

Lot size3,049 ft²
SmallerTypical 0.16 acBigger

Bigger than 21% of homes nearby

Year built1940
OlderTypical 1956Newer

Newer than 21% of homes nearby

How 21 Forrest Ave ranks against every home in each area.
MeasureThis homeClaymont 19703New Castle County
Estimated valuepricier than$283,95228% of homes26% of homes
Price per ft²pricier than$1775almost all homesalmost all homes
Living areabigger than160 ft²almost no homesalmost no homes
Lot sizebigger than3,049 ft²21% of homes18% of homes
Year builtnewer than194021% of homes16% of homes

About 21 Forrest Ave

How much is 21 Forrest Ave, Claymont, DE worth?

The TopHap Estimate for 21 Forrest Ave, Claymont, DE is $283,952 as of Jul 14, 2026. The likely range is $269,079 to $298,825. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Forrest Ave, Claymont, DE last sell?

21 Forrest Ave, Claymont, DE last sold on Dec 11, 2020 for $137,120, according to the county's recorded deed.

How big is 21 Forrest Ave, Claymont, DE?

21 Forrest Ave, Claymont, DE has 3 bedrooms, 1 bathrooms, 160 square feet of living space and a 0.07-acre lot.

When was 21 Forrest Ave, Claymont, DE built?

21 Forrest Ave, Claymont, DE was built in 1940, making it 86 years old. It is a duplex single home. The building has 2 stories.

What schools serve 21 Forrest Ave, Claymont, DE?

21 Forrest Ave, Claymont, DE is assigned to Claymont Elementary School (elementary), rated A; Talley Middle School (middle), rated C+; Brandywine High School (high), rated C-. All sit in Brandywine School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Forrest Ave, Claymont, DE compare to other homes in Claymont 19703?

Among the 4,444 homes in Claymont 19703, it is worth more than 28% of them ($283,952 against a typical $333,782), its price per square foot is higher than almost all of them ($1775 against a typical $222), it is bigger than almost none of them (160 ft² against a typical 1,450 ft²), its lot is bigger than 21% of them (3,049 ft² against a typical 0.16 ac) and it is newer than 21% of them (1940 against a typical 1956). Measured against all of New Castle County, it is worth more than 26% 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 Forrest Ave, Claymont, DE?

The 2025 property tax bill for 21 Forrest Ave, Claymont, DE was $2,048. The county assessed it at $263,400.

More homes on Forrest Ave

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Assigned schools

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