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Single Family ResidenceResidential
$977,990$328 / 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

21 WHITE ROCK TRL

ALLEN, TX 75002
4
Beds
3
Baths
2,986 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.
2.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
1
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

$978K
$931K low$1M 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.$436,005
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$348,804
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.53%
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.$486,985
LOANDEPOT.COM LLC · recorded Aug 17, 2020
2nd 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.$55,000
PNC BANK NA

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,239 (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.$904,682 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$695,268
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$209,414
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$849,483
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$904,682

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCollin
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2005
Lot (acres)The size of the land the home sits on, from county records.2.24
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)
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 · 232 ft²

Transaction History(4)

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.

H
Lovejoy High SchoolA
High · Grades 9–12 · 1.4 mi
E
Hart Elementary SchoolA+
Elementary · Grades KG–4 · 1.4 mi
M
Willow Springs Middle SchoolA+
Middle · Grades 7–8 · 2.0 mi

District: Lovejoy Independent School District

Neighborhood · ZIP 75002These 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.37
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.26

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.88,326
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,239 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,302
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,629
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

21 White Rock Trl 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 91% of homes in Collin County
  • Costs more per square foot than 96% of homes in Collin County
  • Bigger than 70% of homes in Allen 75002
  • Has a bigger lot than 94% of homes in Collin County
  • Older than 78% of homes in Collin County

What homes are worth in Allen 75002

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

This home
$271K$2M

This home is worth more than 84% of homes in Allen 75002.

How it measures up in Allen 75002

The dot is this home. The mark in the middle is the typical home in Allen 75002.

Estimated value$977,990
CheaperTypical $476,481Pricier

Pricier than 84% of homes nearby

Price per ft²$328
CheaperTypical $213Pricier

Pricier than 92% of homes nearby

Living area2,986 ft²
SmallerTypical 2,362 ft²Bigger

Bigger than 70% of homes nearby

Lot size2.24 ac
SmallerTypical 0.29 acBigger

Bigger than 91% of homes nearby

Year built1990
OlderTypical 1999Newer

Newer than 32% of homes nearby

How 21 White Rock Trl ranks against every home in each area.
MeasureThis homeAllen 75002Collin County
Estimated valuepricier than$977,99084% of homes91% of homes
Price per ft²pricier than$32892% of homes96% of homes
Living areabigger than2,986 ft²70% of homes67% of homes
Lot sizebigger than2.24 ac91% of homes94% of homes
Year builtnewer than199032% of homes22% of homes

About 21 White Rock Trl

How much is 21 White Rock Trl, Allen, TX worth?

The TopHap Estimate for 21 White Rock Trl, Allen, TX is $977,990 as of Jul 14, 2026. The likely range is $930,875 to $1,025,105. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 White Rock Trl, Allen, TX last sell?

21 White Rock Trl, Allen, TX last sold on May 16, 2019, according to the county's recorded deed.

How big is 21 White Rock Trl, Allen, TX?

21 White Rock Trl, Allen, TX has 4 bedrooms, 3 bathrooms, 2,986 square feet of living space and a 2.24-acre lot.

When was 21 White Rock Trl, Allen, TX built?

21 White Rock Trl, Allen, TX was built in 1990, making it 36 years old. The building has 1 story.

What schools serve 21 White Rock Trl, Allen, TX?

21 White Rock Trl, Allen, TX is assigned to Lovejoy High School (high), rated A; Hart Elementary School (elementary), rated A+; Willow Springs Middle School (middle), rated A+. All sit in Lovejoy Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 White Rock Trl, Allen, TX compare to other homes in Allen 75002?

Among the 22,419 homes in Allen 75002, it is worth more than 84% of them ($977,990 against a typical $476,481), its price per square foot is higher than 92% of them ($328 against a typical $213), it is bigger than 70% of them (2,986 ft² against a typical 2,362 ft²), its lot is bigger than 91% of them (2.24 ac against a typical 0.29 ac) and it is newer than 32% of them (1990 against a typical 1999). Measured against all of Collin County, it is worth more than 91% 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 21 White Rock Trl, Allen, TX?

The 2024 property tax bill for 21 White Rock Trl, Allen, TX was $11,239. The county assessed it at $904,682.

Closest homes

More homes in Allen 75002

Assigned schools

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