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Single Family ResidenceResidential
$433,862$182 / 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 Aug 30, 2026
Last sold for $421,861 on Mar 13, 2025

233 COSMOS LN

DOVER, DE 19904
2
Beds
2
Baths
2,390 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
Year BuiltThe year the home was originally built, according to county records.

Valuation

$434K
$397K low$470K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$421,861 · Mar 13, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,034 (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.$414,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$89,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$325,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$414,900

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
72
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
80
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
25
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

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
CountyKENT
Lot (acres)The size of the land the home sits on, from county records.0.15
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Major Street/Thoroughfare

Transaction History(6)

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
North Dover Elementary SchoolB+
Elementary · Grades KG–4 · 2.5 mi
H
Dover High School
High · Grades 9–12 · 3.2 mi

District: Capital School District

Neighborhood · ZIP 19904These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.41,240
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.949 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,605
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$86,262
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

233 Cosmos Ln 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 83% of homes in Dover 19904
  • Costs less per square foot than 70% of homes in Kent County
  • Bigger than 83% of homes in Dover 19904
  • Has a smaller lot than 84% of homes in Kent County
  • Among the newest homes in Dover 19904

What homes are worth in Dover 19904

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

This home
$135K$608K

This home is worth more than 83% of homes in Dover 19904.

How it measures up in Dover 19904

The dot is this home. The mark in the middle is the typical home in Dover 19904.

Estimated value$433,862
CheaperTypical $332,656Pricier

Pricier than 83% of homes nearby

Price per ft²$182
CheaperTypical $184Pricier

Pricier than 47% of homes nearby

Living area2,390 ft²
SmallerTypical 1,746 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.15 ac
SmallerTypical 0.24 acBigger

Bigger than 20% of homes nearby

Year built2024
OlderTypical 1990Newer

Newer than almost all homes nearby

How 233 Cosmos Ln ranks against every home in each area.
MeasureThis homeDover 19904Kent County
Estimated valuepricier than$433,86283% of homes72% of homes
Price per ft²pricier than$18247% of homes30% of homes
Living areabigger than2,390 ft²83% of homes81% of homes
Lot sizebigger than0.15 ac20% of homes16% of homes
Year builtnewer than2024almost all homesalmost all homes

About 233 Cosmos Ln

How much is 233 Cosmos Ln, Dover, DE worth?

The TopHap Estimate for 233 Cosmos Ln, Dover, DE is $433,862 as of Aug 30, 2026. The likely range is $397,414 to $470,310. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 233 Cosmos Ln, Dover, DE last sell?

233 Cosmos Ln, Dover, DE last sold on Mar 13, 2025 for $421,861, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 233 Cosmos Ln, Dover, DE?

233 Cosmos Ln, Dover, DE has 2 bedrooms, 2 bathrooms, 2,390 square feet of living space and a 0.15-acre lot.

When was 233 Cosmos Ln, Dover, DE built?

233 Cosmos Ln, Dover, DE was built in 2024, making it 2 years old.

What schools serve 233 Cosmos Ln, Dover, DE?

233 Cosmos Ln, Dover, DE is assigned to North Dover Elementary School (elementary), rated B+; Dover High School (high). All sit in Capital School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 233 Cosmos Ln, Dover, DE compare to other homes in Dover 19904?

Among the 12,943 homes in Dover 19904, it is worth more than 83% of them ($433,862 against a typical $332,656), its price per square foot is higher than 47% of them ($182 against a typical $184), it is bigger than 83% of them (2,390 ft² against a typical 1,746 ft²), its lot is bigger than 20% of them (0.15 ac against a typical 0.24 ac) and it is newer than almost all of them (2024 against a typical 1990). Measured against all of Kent County, it is worth more than 72% 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 233 Cosmos Ln, Dover, DE?

The 2025 property tax bill for 233 Cosmos Ln, Dover, DE was $3,034. The county assessed it at $414,900.

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Assigned schools

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