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9421 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,910 sqftBuilt 2005

Property at a Glance

This home is estimated between $458,448 and $870,887, with a best estimate of $544,200. That places the property below the R251501D - Avery Ranch South median of $708,305, in a neighborhood that declined 3.8% over the past year.

Estimated Value Range

$458,448 $870,887
Best Estimate
$544,200
WCAD Value
$541,855
High Confidence

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

Based on 5 comparable properties in R251501D - Avery Ranch South, this home's estimated market value is between $458,448 and $870,887. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9425 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,178 sqft Built 2005
Raw Value $613,847
Adjusted Value $870,887

Adjusted +$257,040 for 732 sqft more living space. Net adjustment: +$257,040.

9417 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,258 sqft Built 2005
Raw Value $587,076
Adjusted Value $464,877

Adjusted -$122,199 for 348 sqft less living space. Net adjustment: -$122,199.

9429 CASTLE PINES DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,718 sqft Built 2005
Raw Value $499,853
Adjusted Value $567,273

Adjusted +$67,420 for 192 sqft more living space. Net adjustment: +$67,420.

9413 CASTLE PINES DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,925 sqft Built 2005
Raw Value $549,467
Adjusted Value $544,200

Adjusted -$5,267 for 15 sqft less living space. Net adjustment: -$5,267.

15101 FERNHILL DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,265 sqft Built 2006
Raw Value $584,498
Adjusted Value $458,448

Adjusted -$124,657 for 355 sqft less living space and -$1,393 for being older. Net adjustment: -$126,050.

The Neighborhood

This home is valued 23.5% below the R251501D - Avery Ranch South median of $708,305. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 3.8% over the past year.

R251501D - Avery Ranch South

below average
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$541,855
Median
$708,305

This home is -23.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,573 across all districts. With a homestead exemption claimed, that drops to $8,655 — saving $1,918 per year. That's $721 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,839
AustinCity0.5240%$2,839
Williamson CountyCounty0.3694%$2,002
Austin Community Collegespecial0.1034%$560
Williamson County FM/RdCounty0.0443%$240
Upper Brushy Creek WCIDWater0.0170%$92
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$10,573

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $544,200 would pay approximately $3,397 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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