Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$867,480$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 94How 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 $538,500 on Apr 2, 2018

4221 POROSA LN

PROSPER, TX 75078
4
Beds
4.5
Baths
3,778 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
2017
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$867K
$815K low$920K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$538,500 · Apr 2, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,351 (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.$996,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$227,150
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$768,850
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$939,539
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$996,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyDENTON
Lot (acres)The size of the land the home sits on, from county records.0.24
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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 · 146 ft²

Transaction History(2)

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
Windsong Elementary SchoolA+
Elementary · Grades KG–5 · 0.2 mi
H
Richland High School
High · Grades 9–12 · 0.7 mi
M
Rushing Middle SchoolA
Middle · Grades 6–8 · 1.2 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%

Owner Tools

Do you own this home?
Claim this home

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

4221 Porosa 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 90% of homes in Denton County
  • Costs more per square foot than 72% of homes in Denton County
  • Bigger than 90% of homes in Denton County
  • Has a bigger lot than 75% of homes in Denton County
  • Older than 78% of homes in Windsong Ranch

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
$366K$1.8M

This home is worth more than 68% 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$867,480
CheaperTypical $747,798Pricier

Pricier than 68% of homes nearby

Price per ft²$230
CheaperTypical $224Pricier

Pricier than 56% of homes nearby

Living area3,778 ft²
SmallerTypical 3,428 ft²Bigger

Bigger than 66% of homes nearby

Lot size0.24 ac
SmallerTypical 0.21 acBigger

Bigger than 58% of homes nearby

Year built2017
OlderTypical 2018Newer

Newer than 46% of homes nearby

How 4221 Porosa Ln ranks against every home in each area.
MeasureThis homeWindsong RanchProsper 75078Denton County
Estimated valuepricier than$867,48061% of homes68% of homes90% of homes
Price per ft²pricier than$23037% of homes56% of homes72% of homes
Living areabigger than3,778 ft²70% of homes66% of homes90% of homes
Lot sizebigger than0.24 ac69% of homes58% of homes75% of homes
Year builtnewer than201722% of homes46% of homes73% of homes

About 4221 Porosa Ln

How much is 4221 Porosa Ln, Prosper, TX worth?

The TopHap Estimate for 4221 Porosa Ln, Prosper, TX is $867,480 as of Sep 24, 2026. The likely range is $814,617 to $920,343. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4221 Porosa Ln, Prosper, TX last sell?

4221 Porosa Ln, Prosper, TX last sold on Apr 2, 2018 for $538,500, according to the county's recorded deed.

How big is 4221 Porosa Ln, Prosper, TX?

4221 Porosa Ln, Prosper, TX has 4 bedrooms, 4.5 bathrooms, 3,778 square feet of living space and a 0.24-acre lot.

When was 4221 Porosa Ln, Prosper, TX built?

4221 Porosa Ln, Prosper, TX was built in 2017, making it 9 years old. The building has 2 stories.

What schools serve 4221 Porosa Ln, Prosper, TX?

4221 Porosa Ln, Prosper, TX is assigned to Windsong Elementary School (elementary), rated A+; Richland High School (high); Rushing Middle School (middle), rated A. All sit in Prosper Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4221 Porosa Ln, Prosper, TX compare to other homes in Prosper 75078?

Among the 19,498 homes in Prosper 75078, it is worth more than 68% of them ($867,480 against a typical $747,798), its price per square foot is higher than 56% of them ($230 against a typical $224), it is bigger than 66% of them (3,778 ft² against a typical 3,428 ft²), its lot is bigger than 58% of them (0.24 ac against a typical 0.21 ac) and it is newer than 46% of them (2017 against a typical 2018). Measured against all of Denton County, it is worth more than 90% 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 4221 Porosa Ln, Prosper, TX?

The 2025 property tax bill for 4221 Porosa Ln, Prosper, TX was $15,351. The county assessed it at $996,000.

More homes on Porosa Ln

Closest homes

More homes in Prosper 75078

Assigned schools

Explore the area

See this home in context

Open 4221 Porosa Ln on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map