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Single Family ResidenceResidential
$553,221$249 / 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 90How 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

15620 INTERLACHEN DR

AUSTIN, TX 78717
2
Baths
2,225 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
2005
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

$553K
$495K low$611K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,762 (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.$623,366 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$566,696
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$720,879

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.0.19
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 · 404 ft²Porch · 207 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 · 1.5 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

15620 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 78% of homes in Williamson County
  • Costs more per square foot than 88% of homes in Williamson County
  • Smaller than 65% of homes in Austin 78717

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
$305K$1.2M

This home is worth more than 45% 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$553,221
CheaperTypical $578,610Pricier

Pricier than 45% of homes nearby

Price per ft²$249
CheaperTypical $231Pricier

Pricier than 75% of homes nearby

Living area2,225 ft²
SmallerTypical 2,548 ft²Bigger

Bigger than 35% of homes nearby

Lot size0.19 ac
SmallerTypical 0.19 acBigger

Bigger than 47% of homes nearby

Year built2005
OlderTypical 2005Newer

Newer than 54% of homes nearby

How 15620 Interlachen Dr ranks against every home in each area.
MeasureThis homeAvery RanchAustin 78717Williamson County
Estimated valuepricier than$553,22149% of homes45% of homes78% of homes
Price per ft²pricier than$24979% of homes75% of homes88% of homes
Living areabigger than2,225 ft²41% of homes35% of homes56% of homes
Lot sizebigger than0.19 ac53% of homes47% of homes46% of homes
Year builtnewer than200554% of homes54% of homes46% of homes

About 15620 Interlachen Dr

How much is 15620 Interlachen Dr, Austin, TX worth?

The TopHap Estimate for 15620 Interlachen Dr, Austin, TX is $553,221 as of Oct 21, 2026. The likely range is $495,189 to $611,253. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15620 Interlachen Dr, Austin, TX last sell?

15620 Interlachen Dr, Austin, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 15620 Interlachen Dr, Austin, TX?

15620 Interlachen Dr, Austin, TX has 2 bathrooms, 2,225 square feet of living space and a 0.19-acre lot.

When was 15620 Interlachen Dr, Austin, TX built?

15620 Interlachen Dr, Austin, TX was built in 2005, making it 21 years old. The building has 1 story.

What schools serve 15620 Interlachen Dr, Austin, TX?

15620 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 15620 Interlachen Dr, Austin, TX compare to other homes in Austin 78717?

Among the 9,399 homes in Austin 78717, it is worth more than 45% of them ($553,221 against a typical $578,610), its price per square foot is higher than 75% of them ($249 against a typical $231), it is bigger than 35% of them (2,225 ft² against a typical 2,548 ft²), its lot is bigger than 47% of them (0.19 ac against a typical 0.19 ac) and it is newer than 54% of them (2005 against a typical 2005). Measured against all of Williamson County, it is worth more than 78% 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 15620 Interlachen Dr, Austin, TX?

The 2025 property tax bill for 15620 Interlachen Dr, Austin, TX was $2,762. The county assessed it at $623,366.

More homes on Interlachen Dr

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Assigned schools

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