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

15300 INTERLACHEN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath1,403 sqftBuilt 2004

Property at a Glance

This home is estimated between $558,506 and $928,301, with a best estimate of $643,401. 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

$558,506 $928,301
Best Estimate
$643,401
WCAD Value
$847,818
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 $558,506 and $928,301. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15304 INTERLACHEN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,715 sqft Built 2005
Raw Value $789,172
Adjusted Value $643,401

Adjusted -$145,771 for 312 sqft less living space. Net adjustment: -$145,771.

15232 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,225 sqft Built 2007
Raw Value $845,137
Adjusted Value $928,301

Adjusted +$83,164 for 178 sqft more living space. Net adjustment: +$83,164.

15312 INTERLACHEN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,804 sqft Built 2006
Raw Value $745,859
Adjusted Value $558,506

Adjusted -$187,353 for 401 sqft less living space. Net adjustment: -$187,353.

15301 INTERLACHEN DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 1,114 sqft Built 2007
Raw Value $785,545
Adjusted Value $920,570

Adjusted +$135,025 for 289 sqft more living space. Net adjustment: +$135,025.

15305 INTERLACHEN DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,813 sqft Built 2004
Raw Value $772,181
Adjusted Value $580,623

Adjusted -$191,558 for 410 sqft less living space. Net adjustment: -$191,558.

The Neighborhood

This home is valued 24.5% 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
$847,818
Median
$1,122,350

This home is -24.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $25,758 across all districts. With a homestead exemption claimed, that drops to $21,941 — saving $3,817 per year. That's $1,828 per month a buyer should budget. The assessed value increased +10.6% vs the subdivision average of +11.4%. This increase gives a protest opportunity score of 30 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$9,215
Round Rock ISDSchool0.8931%$7,572
AustinCity0.5240%$4,443
Williamson CountyCounty0.3694%$3,132
Austin Community Collegespecial0.1034%$877
Williamson County FM/RdCounty0.0443%$376
Upper Brushy Creek WCIDWater0.0170%$144
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax3.0382%$25,758
30 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $643,401 would pay approximately $4,016 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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