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Single Family ResidenceResidential
$311,590$250 / 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 $310,000 on Jun 11, 2026

18 BALFOUR AVE

CLAYMONT, DE 19703
3
Beds
1
Baths
1,248 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
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

$312K
$289K low$334K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$310,000 · Jun 11, 2026

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.$248,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$223,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$97,650

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.42
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
17
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.
33
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyNEW CASTLE
Lot (acres)The size of the land the home sits on, from county records.0.13
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(3)

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 · 0.8 mi
M
Talley Middle SchoolC+
Middle · Grades 6–12 · 1.5 mi
H
Brandywine High SchoolC-
High · Grades 9–12 · 3.8 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

18 Balfour 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 68% of homes in New Castle County
  • Costs more per square foot than 75% of homes in Claymont 19703
  • Smaller than 77% of homes in New Castle County
  • Has a smaller lot than 69% of homes in New Castle County
  • Among the oldest homes in Claymont 19703

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
$153K$485K

This home is worth more than 41% 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$311,590
CheaperTypical $331,237Pricier

Pricier than 41% of homes nearby

Price per ft²$250
CheaperTypical $220Pricier

Pricier than 75% of homes nearby

Living area1,248 ft²
SmallerTypical 1,450 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.13 ac
SmallerTypical 0.16 acBigger

Bigger than 36% of homes nearby

Year built1910
OlderTypical 1956Newer

Older than almost all homes nearby

How 18 Balfour Ave ranks against every home in each area.
MeasureThis homeClaymont 19703New Castle County
Estimated valuepricier than$311,59041% of homes32% of homes
Price per ft²pricier than$25075% of homes72% of homes
Living areabigger than1,248 ft²31% of homes23% of homes
Lot sizebigger than0.13 ac36% of homes31% of homes
Year builtnewer than1910almost no homes6% of homes

About 18 Balfour Ave

How much is 18 Balfour Ave, Claymont, DE worth?

The TopHap Estimate for 18 Balfour Ave, Claymont, DE is $311,590 as of Sep 24, 2026. The likely range is $289,496 to $333,684. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Balfour Ave, Claymont, DE last sell?

18 Balfour Ave, Claymont, DE last sold on Jun 11, 2026 for $310,000, according to the county's recorded deed.

How big is 18 Balfour Ave, Claymont, DE?

18 Balfour Ave, Claymont, DE has 3 bedrooms, 1 bathrooms, 1,248 square feet of living space and a 0.13-acre lot.

When was 18 Balfour Ave, Claymont, DE built?

18 Balfour Ave, Claymont, DE was built in 1910, making it 116 years old. It is a colonial home. The building has 2 stories.

What schools serve 18 Balfour Ave, Claymont, DE?

18 Balfour 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 18 Balfour Ave, Claymont, DE compare to other homes in Claymont 19703?

Among the 4,437 homes in Claymont 19703, it is worth more than 41% of them ($311,590 against a typical $331,237), its price per square foot is higher than 75% of them ($250 against a typical $220), it is bigger than 31% of them (1,248 ft² against a typical 1,450 ft²), its lot is bigger than 36% of them (0.13 ac against a typical 0.16 ac) and it is newer than almost none of them (1910 against a typical 1956). Measured against all of New Castle County, it is worth more than 32% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Balfour Ave

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Assigned schools

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