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Single Family ResidenceResidential
$477,916$230 / 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 Jul 14, 2026

3521 NEW CASTLE CT

RICHARDSON, TX 75082
6
Beds
2
Baths
2,078 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.
2007
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
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

$478K
$460K low$496K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$161,566
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$129,253
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.69%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$316,350
AMERICAN FIN'L NTWK INC · recorded Dec 16, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,297 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$461,733 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$137,025
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$324,708
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$427,773
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$461,733

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCollin
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
HeatingThe type of heating system in the home.Central
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 124 ft²

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.

Foreclosure Filings(2)

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

E
Miller Elementary SchoolB
Elementary · Grades KG–5 · 0.5 mi
M
Murphy Middle SchoolA+
Middle · Grades 6–8 · 1.6 mi
H
Plano East Senior High SchoolA-
High · Grades 11–12 · 3.2 mi

District: Plano Independent School District

Neighborhood · ZIP 75082These 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.70
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.31,543
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,731 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$120,532
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,214
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

3521 New Castle Ct 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 90% of homes in Wyndsor
  • Costs more per square foot than 96% of homes in Wyndsor
  • Smaller than 94% of homes in Wyndsor
  • Newer than 96% of homes in Wyndsor

What homes are worth in Richardson 75082

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

This home
$334K$1.2M

This home is worth more than 17% of homes in Richardson 75082.

How it measures up in Richardson 75082

The dot is this home. The mark in the middle is the typical home in Richardson 75082.

Estimated value$477,916
CheaperTypical $580,164Pricier

Pricier than 17% of homes nearby

Price per ft²$230
CheaperTypical $205Pricier

Pricier than 85% of homes nearby

Living area2,078 ft²
SmallerTypical 2,820 ft²Bigger

Bigger than 13% of homes nearby

Year built2007
OlderTypical 1996Newer

Newer than 95% of homes nearby

How 3521 New Castle Ct ranks against every home in each area.
MeasureThis homeWyndsorRichardson 75082Collin County
Estimated valuepricier than$477,91610% of homes17% of homes44% of homes
Price per ft²pricier than$23096% of homes85% of homes70% of homes
Living areabigger than2,078 ft²6% of homes13% of homes35% of homes
Year builtnewer than200796% of homes95% of homes60% of homes

About 3521 New Castle Ct

How much is 3521 New Castle Ct, Richardson, TX worth?

The TopHap Estimate for 3521 New Castle Ct, Richardson, TX is $477,916 as of Jul 14, 2026. The likely range is $459,678 to $496,154. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3521 New Castle Ct, Richardson, TX last sell?

3521 New Castle Ct, Richardson, TX last sold on Dec 16, 2020, according to the county's recorded deed.

How big is 3521 New Castle Ct, Richardson, TX?

3521 New Castle Ct, Richardson, TX has 6 bedrooms, 2 bathrooms and 2,078 square feet of living space.

When was 3521 New Castle Ct, Richardson, TX built?

3521 New Castle Ct, Richardson, TX was built in 2007, making it 19 years old. The building has 1 story.

What schools serve 3521 New Castle Ct, Richardson, TX?

3521 New Castle Ct, Richardson, TX is assigned to Miller Elementary School (elementary), rated B; Murphy Middle School (middle), rated A+; Plano East Senior High School (high), rated A-. All sit in Plano Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3521 New Castle Ct, Richardson, TX compare to other homes in Richardson 75082?

Among the 6,461 homes in Richardson 75082, it is worth more than 17% of them ($477,916 against a typical $580,164), its price per square foot is higher than 85% of them ($230 against a typical $205), it is bigger than 13% of them (2,078 ft² against a typical 2,820 ft²) and it is newer than 95% of them (2007 against a typical 1996). Measured against all of Collin County, it is worth more than 44% 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 3521 New Castle Ct, Richardson, TX?

The 2024 property tax bill for 3521 New Castle Ct, Richardson, TX was $6,297. The county assessed it at $461,733.

Closest homes

More homes in Richardson 75082

Assigned schools

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