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Single Family ResidenceResidential
$615,000$219 / 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 96How 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 $450,870 on May 4, 2026

15529 INTERLACHEN DR

AUSTIN, TX 78717
3
Baths
2,806 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
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

$615K
$589K low$641K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$450,870 · May 4, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,613 (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.$792,663 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$150,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$642,163
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$681,252
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$792,663

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.0.12
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 · 24 ft²Porch · 82 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.

E
Rutledge Elementary SchoolA+
Elementary · Grades KG–5 · 1.3 mi
H
Vista Ridge High SchoolA-
High · Grades 9–12 · 1.6 mi
M
Henry Middle SchoolA
Middle · Grades 6–8 · 1.9 mi

District: Leander Independent School District

Neighborhood · ZIP 78717These 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.48
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 100.15

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.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.45,672
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,880 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$129,403
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,215
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.35 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

15529 Interlachen 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 85% of homes in Williamson County
  • Costs more per square foot than 71% of homes in Williamson County
  • Bigger than 78% of homes in Williamson County
  • Has a smaller lot than 96% of homes in Austin 78717
  • Newer than 67% of homes in Avery Ranch

What homes are worth in Austin 78717

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

This home
$306K$1.2M

This home is worth more than 57% of homes in Austin 78717.

How it measures up in Austin 78717

The dot is this home. The mark in the middle is the typical home in Austin 78717.

Estimated value$615,000
CheaperTypical $577,719Pricier

Pricier than 57% of homes nearby

Price per ft²$219
CheaperTypical $231Pricier

Pricier than 31% of homes nearby

Living area2,806 ft²
SmallerTypical 2,549 ft²Bigger

Bigger than 61% of homes nearby

Lot size0.12 ac
SmallerTypical 0.19 acBigger

Bigger than 4% of homes nearby

Year built2006
OlderTypical 2005Newer

Newer than 60% of homes nearby

How 15529 Interlachen Dr ranks against every home in each area.
MeasureThis homeAvery RanchAustin 78717Williamson County
Estimated valuepricier than$615,00059% of homes57% of homes85% of homes
Price per ft²pricier than$21931% of homes31% of homes71% of homes
Living areabigger than2,806 ft²64% of homes61% of homes78% of homes
Lot sizebigger than0.12 ac5% of homes4% of homes5% of homes
Year builtnewer than200667% of homes60% of homes50% of homes

About 15529 Interlachen Dr

How much is 15529 Interlachen Dr, Austin, TX worth?

The TopHap Estimate for 15529 Interlachen Dr, Austin, TX is $615,000 as of Sep 24, 2026. The likely range is $589,491 to $640,509. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15529 Interlachen Dr, Austin, TX last sell?

15529 Interlachen Dr, Austin, TX last sold on May 4, 2026 for $450,870, according to the county's recorded deed.

How big is 15529 Interlachen Dr, Austin, TX?

15529 Interlachen Dr, Austin, TX has 3 bathrooms, 2,806 square feet of living space and a 0.12-acre lot.

When was 15529 Interlachen Dr, Austin, TX built?

15529 Interlachen Dr, Austin, TX was built in 2006, making it 20 years old. The building has 2 stories.

What schools serve 15529 Interlachen Dr, Austin, TX?

15529 Interlachen Dr, Austin, TX is assigned to Rutledge Elementary School (elementary), rated A+; Vista Ridge High School (high), rated A-; Henry Middle School (middle), rated A. All sit in Leander Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15529 Interlachen Dr, Austin, TX compare to other homes in Austin 78717?

Among the 9,399 homes in Austin 78717, it is worth more than 57% of them ($615,000 against a typical $577,719), its price per square foot is higher than 31% of them ($219 against a typical $231), it is bigger than 61% of them (2,806 ft² against a typical 2,549 ft²), its lot is bigger than 4% of them (0.12 ac against a typical 0.19 ac) and it is newer than 60% of them (2006 against a typical 2005). Measured against all of Williamson County, it is worth more than 85% 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 15529 Interlachen Dr, Austin, TX?

The 2025 property tax bill for 15529 Interlachen Dr, Austin, TX was $14,613. The county assessed it at $792,663.

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