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Single Family ResidenceResidential
$365,092$253 / 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 98How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

12107 GREY ROCK LN

AUSTIN, TX 78750
2
Baths
1,444 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.
1977
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$365K
$356K low$374K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,845 (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.$340,297 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$87,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$252,797
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$368,471
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$340,297

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWILLIAMSON
Lot (acres)The size of the land the home sits on, from county records.0.17
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
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.Patio · 209 ft²Porch · 108 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.

M
Grisham Middle SchoolA
Middle · Grades 6–8 · 0.2 mi
E
Purple Sage Elementary SchoolA
Elementary · Grades KG–5 · 0.6 mi
H
Westwood High SchoolA+
High · Grades 9–12 · 0.7 mi

District: Round Rock Independent School District

Neighborhood · ZIP 78750These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.17

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.32,798
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,679 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,496
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,485
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

12107 Grey Rock 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 less than 86% of homes in Austin 78750
  • Costs more per square foot than 90% of homes in Williamson County
  • Smaller than 86% of homes in Austin 78750
  • Has a smaller lot than 78% of homes in Austin 78750
  • Older than 94% of homes in Williamson County

What homes are worth in Austin 78750

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

This home
$178K$1.3M

This home is worth more than 14% of homes in Austin 78750.

How it measures up in Austin 78750

The dot is this home. The mark in the middle is the typical home in Austin 78750.

Estimated value$365,092
CheaperTypical $635,143Pricier

Pricier than 14% of homes nearby

Price per ft²$253
CheaperTypical $287Pricier

Pricier than 30% of homes nearby

Living area1,444 ft²
SmallerTypical 2,216 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.17 ac
SmallerTypical 0.24 acBigger

Bigger than 22% of homes nearby

Year built1977
OlderTypical 1983Newer

Newer than 22% of homes nearby

How 12107 Grey Rock Ln ranks against every home in each area.
MeasureThis homeAnderson MillAustin 78750Williamson County
Estimated valuepricier than$365,09228% of homes14% of homes41% of homes
Price per ft²pricier than$25362% of homes30% of homes90% of homes
Living areabigger than1,444 ft²26% of homes14% of homes14% of homes
Lot sizebigger than0.17 ac41% of homes22% of homes35% of homes
Year builtnewer than197728% of homes22% of homes6% of homes

About 12107 Grey Rock Ln

How much is 12107 Grey Rock Ln, Austin, TX worth?

The TopHap Estimate for 12107 Grey Rock Ln, Austin, TX is $365,092 as of Oct 21, 2026. The likely range is $356,302 to $373,882. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12107 Grey Rock Ln, Austin, TX last sell?

12107 Grey Rock Ln, Austin, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12107 Grey Rock Ln, Austin, TX?

12107 Grey Rock Ln, Austin, TX has 2 bathrooms, 1,444 square feet of living space and a 0.17-acre lot.

When was 12107 Grey Rock Ln, Austin, TX built?

12107 Grey Rock Ln, Austin, TX was built in 1977, making it 49 years old. The building has 1 story.

What schools serve 12107 Grey Rock Ln, Austin, TX?

12107 Grey Rock Ln, Austin, TX is assigned to Grisham Middle School (middle), rated A; Purple Sage Elementary School (elementary), rated A; Westwood High School (high), rated A+. All sit in Round Rock Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12107 Grey Rock Ln, Austin, TX compare to other homes in Austin 78750?

Among the 8,589 homes in Austin 78750, it is worth more than 14% of them ($365,092 against a typical $635,143), its price per square foot is higher than 30% of them ($253 against a typical $287), it is bigger than 14% of them (1,444 ft² against a typical 2,216 ft²), its lot is bigger than 22% of them (0.17 ac against a typical 0.24 ac) and it is newer than 22% of them (1977 against a typical 1983). Measured against all of Williamson County, it is worth more than 41% 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 12107 Grey Rock Ln, Austin, TX?

The 2025 property tax bill for 12107 Grey Rock Ln, Austin, TX was $5,845. The county assessed it at $340,297.

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