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Single Family ResidenceResidential
$1,232,676$229 / 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 93How 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

621 ST ANDREW LN

PROSPER, TX 75078
0
Baths
5,391 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.
2021
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$1.2M
$1.1M low$1.3M high

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.$1,112,869 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$230,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$882,869
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,125,851
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,112,869

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.0.36
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

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
Prosper High SchoolA
High · Grades 9–12 · 0.3 mi
E
Boyer Elementary SchoolA+
Elementary · Grades KG–5 · 0.9 mi
M
Reynolds Middle SchoolA
Middle · Grades 6–8 · 1.0 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

621 St Andrew 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 96% of homes in Collin County
  • Costs more per square foot than 71% of homes in Collin County
  • Among the largest homes in Collin County
  • Has a bigger lot than 87% of homes in Prosper 75078
  • Newer than 88% 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
$364K$1.7M

This home is worth more than 92% 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$1,232,676
CheaperTypical $746,828Pricier

Pricier than 92% of homes nearby

Price per ft²$229
CheaperTypical $224Pricier

Pricier than 55% of homes nearby

Living area5,391 ft²
SmallerTypical 3,427 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.36 ac
SmallerTypical 0.21 acBigger

Bigger than 87% of homes nearby

Year built2021
OlderTypical 2018Newer

Newer than 75% of homes nearby

How 621 St Andrew Ln ranks against every home in each area.
MeasureThis homeProsper 75078Collin County
Estimated valuepricier than$1,232,67692% of homes96% of homes
Price per ft²pricier than$22955% of homes71% of homes
Living areabigger than5,391 ft²98% of homesalmost all homes
Lot sizebigger than0.36 ac87% of homes80% of homes
Year builtnewer than202175% of homes88% of homes

About 621 St Andrew Ln

How much is 621 St Andrew Ln, Prosper, TX worth?

The TopHap Estimate for 621 St Andrew Ln, Prosper, TX is $1,232,676 as of Sep 24, 2026. The likely range is $1,149,705 to $1,315,647. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 621 St Andrew Ln, Prosper, TX last sell?

621 St Andrew Ln, Prosper, TX last sold on Jul 18, 2022, according to the county's recorded deed.

How big is 621 St Andrew Ln, Prosper, TX?

621 St Andrew Ln, Prosper, TX has 5,391 square feet of living space and a 0.36-acre lot.

When was 621 St Andrew Ln, Prosper, TX built?

621 St Andrew Ln, Prosper, TX was built in 2021, making it 5 years old. The building has 2 stories.

What schools serve 621 St Andrew Ln, Prosper, TX?

621 St Andrew Ln, Prosper, TX is assigned to Prosper High School (high), rated A; Boyer Elementary School (elementary), rated A+; Reynolds 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 621 St Andrew Ln, Prosper, TX compare to other homes in Prosper 75078?

Among the 19,498 homes in Prosper 75078, it is worth more than 92% of them ($1,232,676 against a typical $746,828), its price per square foot is higher than 55% of them ($229 against a typical $224), it is bigger than 98% of them (5,391 ft² against a typical 3,427 ft²), its lot is bigger than 87% of them (0.36 ac against a typical 0.21 ac) and it is newer than 75% of them (2021 against a typical 2018). Measured against all of Collin County, it is worth more than 96% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on St Andrew Ln

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Assigned schools

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