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Single Family ResidenceResidential
$540,543$217 / 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 96How 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 $204,900 on Jun 20, 2001

511 DIAMOND DR

MIDDLETOWN, DE 19709
4
Beds
2.5
Baths
2,490 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.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
2001
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$541K
$516K low$565K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$204,900 · Jun 20, 2001

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.$534,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$72,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$462,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$97,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$455,310

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.43
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.
77
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.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.0.36
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
CoolingThe type of cooling or air conditioning in the home.Central
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

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

E
Silver Lake Elementary SchoolB
Elementary · Grades 1–5 · 0.4 mi
M
Everett Meredith Middle SchoolB
Middle · Grades 6–8 · 0.6 mi
H
Middletown High SchoolB
High · Grades 9–12 · 0.8 mi

District: Appoquinimink School District

Neighborhood · ZIP 19709These 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.40
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
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.48,851
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.583 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$125,472
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$150,313
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.43 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

511 Diamond Dr 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 78% of homes in New Castle County
  • Bigger than 79% of homes in New Castle County
  • Has a bigger lot than 78% of homes in New Castle County
  • Newer than 84% of homes in New Castle County

What homes are worth in Middletown 19709

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

This home
$244K$913K

This home is worth more than 49% of homes in Middletown 19709.

How it measures up in Middletown 19709

The dot is this home. The mark in the middle is the typical home in Middletown 19709.

Estimated value$540,543
CheaperTypical $545,459Pricier

Pricier than 49% of homes nearby

Price per ft²$217
CheaperTypical $217Pricier

Pricier than 50% of homes nearby

Living area2,490 ft²
SmallerTypical 2,426 ft²Bigger

Bigger than 53% of homes nearby

Lot size0.36 ac
SmallerTypical 0.26 acBigger

Bigger than 64% of homes nearby

Year built2001
OlderTypical 2005Newer

Newer than 37% of homes nearby

How 511 Diamond Dr ranks against every home in each area.
MeasureThis homeMiddletown 19709New Castle County
Estimated valuepricier than$540,54349% of homes78% of homes
Price per ft²pricier than$21750% of homes48% of homes
Living areabigger than2,490 ft²53% of homes79% of homes
Lot sizebigger than0.36 ac64% of homes78% of homes
Year builtnewer than200137% of homes84% of homes

About 511 Diamond Dr

How much is 511 Diamond Dr, Middletown, DE worth?

The TopHap Estimate for 511 Diamond Dr, Middletown, DE is $540,543 as of Sep 24, 2026. The likely range is $516,465 to $564,621. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 511 Diamond Dr, Middletown, DE last sell?

511 Diamond Dr, Middletown, DE last sold on Jun 20, 2001 for $204,900, according to the county's recorded deed.

How big is 511 Diamond Dr, Middletown, DE?

511 Diamond Dr, Middletown, DE has 4 bedrooms, 2.5 bathrooms, 2,490 square feet of living space and a 0.36-acre lot.

When was 511 Diamond Dr, Middletown, DE built?

511 Diamond Dr, Middletown, DE was built in 2001, making it 25 years old. It is a colonial home. The building has 2 stories.

What schools serve 511 Diamond Dr, Middletown, DE?

511 Diamond Dr, Middletown, DE is assigned to Silver Lake Elementary School (elementary), rated B; Everett Meredith Middle School (middle), rated B; Middletown High School (high), rated B. All sit in Appoquinimink School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 511 Diamond Dr, Middletown, DE compare to other homes in Middletown 19709?

Among the 20,748 homes in Middletown 19709, it is worth more than 49% of them ($540,543 against a typical $545,459), its price per square foot is higher than 50% of them ($217 against a typical $217), it is bigger than 53% of them (2,490 ft² against a typical 2,426 ft²), its lot is bigger than 64% of them (0.36 ac against a typical 0.26 ac) and it is newer than 37% of them (2001 against a typical 2005). Measured against all of New Castle County, it is worth more than 78% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Diamond Dr

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Assigned schools

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