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Single Family ResidenceResidential
$752,663$208 / 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

3521 COWSLIP DR

PROSPER, TX 75078
5
Beds
5
Baths
3,610 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2023
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$753K
$711K low$794K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,988 (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.$736,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$160,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$576,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$673,480
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$736,000

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.57
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
51
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
93
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
55
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
88
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
CountyCollin
Lot (acres)The size of the land the home sits on, from county records.0.17

Transaction History(1)

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
Lilyana Elementary SchoolA+
Elementary · Grades KG–5 · 0.5 mi
H
Walnut Grove High SchoolB+
High · Grades 9–12 · 3.0 mi
M
Jim Bridges Middle School
Middle · Grades 6–8 · 3.2 mi

District: Prosper Independent School District

Neighborhood · ZIP 75078These 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.49
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.29

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.41%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.49,045
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,435 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$166,233
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$200,017
Average tempThe average temperature here across a full year.64°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%

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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

3521 Cowslip 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 79% of homes in Collin County
  • Costs less per square foot than 79% of homes in Prosper 75078
  • Bigger than 83% of homes in Collin County
  • Has a smaller lot than 71% of homes in Prosper 75078
  • Newer than 94% of homes in Collin County

What homes are worth in Prosper 75078

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

This home
$383K$1.9M

This home is worth more than 41% of homes in Prosper 75078.

How it measures up in Prosper 75078

The dot is this home. The mark in the middle is the typical home in Prosper 75078.

Estimated value$752,663
CheaperTypical $810,335Pricier

Pricier than 41% of homes nearby

Price per ft²$208
CheaperTypical $242Pricier

Pricier than 21% of homes nearby

Living area3,610 ft²
SmallerTypical 3,421 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.17 ac
SmallerTypical 0.21 acBigger

Bigger than 29% of homes nearby

Year built2023
OlderTypical 2018Newer

Newer than 92% of homes nearby

How 3521 Cowslip Dr ranks against every home in each area.
MeasureThis homeProsper 75078Collin County
Estimated valuepricier than$752,66341% of homes79% of homes
Price per ft²pricier than$20821% of homes46% of homes
Living areabigger than3,610 ft²59% of homes83% of homes
Lot sizebigger than0.17 ac29% of homes44% of homes
Year builtnewer than202392% of homes94% of homes

About 3521 Cowslip Dr

How much is 3521 Cowslip Dr, Prosper, TX worth?

The TopHap Estimate for 3521 Cowslip Dr, Prosper, TX is $752,663 as of Jul 14, 2026. The likely range is $711,448 to $793,878. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3521 Cowslip Dr, Prosper, TX last sell?

3521 Cowslip Dr, Prosper, TX last sold on Sep 22, 2023, according to the county's recorded deed.

How big is 3521 Cowslip Dr, Prosper, TX?

3521 Cowslip Dr, Prosper, TX has 5 bedrooms, 5 bathrooms, 3,610 square feet of living space and a 0.17-acre lot.

When was 3521 Cowslip Dr, Prosper, TX built?

3521 Cowslip Dr, Prosper, TX was built in 2023, making it 3 years old. The building has 2 stories.

What schools serve 3521 Cowslip Dr, Prosper, TX?

3521 Cowslip Dr, Prosper, TX is assigned to Lilyana Elementary School (elementary), rated A+; Walnut Grove High School (high), rated B+; Jim Bridges Middle School (middle). All sit in Prosper Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3521 Cowslip Dr, Prosper, TX compare to other homes in Prosper 75078?

Among the 18,726 homes in Prosper 75078, it is worth more than 41% of them ($752,663 against a typical $810,335), its price per square foot is higher than 21% of them ($208 against a typical $242), it is bigger than 59% of them (3,610 ft² against a typical 3,421 ft²), its lot is bigger than 29% of them (0.17 ac against a typical 0.21 ac) and it is newer than 92% of them (2023 against a typical 2018). Measured against all of Collin County, it is worth more than 79% 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 Cowslip Dr, Prosper, TX?

The 2024 property tax bill for 3521 Cowslip Dr, Prosper, TX was $15,988. The county assessed it at $736,000.

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