Beta Williamson County, TX only — data and coverage are limited during early access.

15404 INTERLACHEN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath947 sqftBuilt 2011

Property at a Glance

This home is estimated between $228,547 and $781,633, with a best estimate of $630,400. That places the property below the L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH median of $1,122,350, in a neighborhood that appreciated 11.4% over the past year.

Estimated Value Range

$228,547 $781,633
Best Estimate
$630,400
WCAD Value
$755,950
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH, this home's estimated market value is between $228,547 and $781,633. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15400 INTERLACHEN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 975 sqft Built 2008
Raw Value $643,482
Adjusted Value $630,400

Adjusted -$13,082 for 28 sqft less living space. Net adjustment: -$13,082.

15501 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,157 sqft Built 2007
Raw Value $809,484
Adjusted Value $711,369

Adjusted -$98,115 for 210 sqft less living space. Net adjustment: -$98,115.

15420 INTERLACHEN DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 937 sqft Built 2011
Raw Value $776,961
Adjusted Value $781,633

Adjusted +$4,672 for 10 sqft more living space. Net adjustment: +$4,672.

15416 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 97% similar Same subdivision
3 bed 2 bath 1,677 sqft Built 2004
Raw Value $595,349
Adjusted Value $254,282

Adjusted -$341,067 for 730 sqft less living space. Net adjustment: -$341,067.

15325 INTERLACHEN DR, AUSTIN, TX 78717
0.04 mi 96% similar Same subdivision
3 bed 2 bath 1,790 sqft Built 2004
Raw Value $622,409
Adjusted Value $228,547

Adjusted -$393,862 for 843 sqft less living space. Net adjustment: -$393,862.

The Neighborhood

This home is valued 32.6% below the L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH median of $1,122,350. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 11.4% over the past year.

L572601A - Avery Estates & GOLF CLUB @ AVERY RANCH

below average
146 Properties
$1,122,350 Median Value
+11.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$755,950
Median
$1,122,350

This home is -32.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $20,412 across all districts. With a homestead exemption claimed, that drops to $16,812 — saving $3,600 per year. That's $1,401 per month a buyer should budget. The assessed value increased +23.8% vs the subdivision average of +11.4%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$7,302
Round Rock ISDSchool0.8931%$6,000
AustinCity0.5240%$3,521
Williamson CountyCounty0.3694%$2,482
Austin Community Collegespecial0.1034%$695
Williamson County FM/RdCounty0.0443%$298
Upper Brushy Creek WCIDWater0.0170%$114
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax3.0382%$20,412
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $630,400 would pay approximately $3,935 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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