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9400 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath1,816 sqftBuilt 2007

Property at a Glance

This home is estimated between $575,002 and $807,719, with a best estimate of $681,388. 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

$575,002 $807,719
Best Estimate
$681,388
WCAD Value
$744,395
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 $575,002 and $807,719. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9404 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,571 sqft Built 2005
Raw Value $718,902
Adjusted Value $807,719

Adjusted +$86,031 for 245 sqft more living space and +$2,786 for being newer. Net adjustment: +$88,817.

9332 CASTLE PINES DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,876 sqft Built 2005
Raw Value $751,939
Adjusted Value $733,656

Adjusted -$21,069 for 60 sqft less living space and +$2,786 for being newer. Net adjustment: -$18,283.

15217 FERNHILL DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,140 sqft Built 2006
Raw Value $793,767
Adjusted Value $681,388

Adjusted -$113,772 for 324 sqft less living space and +$1,393 for being newer. Net adjustment: -$112,379.

9401 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,823 sqft Built 2005
Raw Value $574,674
Adjusted Value $575,002

Adjusted -$2,458 for 7 sqft less living space and +$2,786 for being newer. Net adjustment: +$328.

9324 CASTLE PINES DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
5 bed 3 bath 2,234 sqft Built 2005
Raw Value $798,409
Adjusted Value $654,415

Adjusted -$146,780 for 418 sqft less living space and +$2,786 for being newer. Net adjustment: -$143,994.

The Neighborhood

This home is valued 5.1% above the R251501D - Avery Ranch South median of $708,305. With 635 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 3.8% over the past year.

R251501D - Avery Ranch South

typical
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$744,395
Median
$708,305

This home is +5.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,525 across all districts. With a homestead exemption claimed, that drops to $12,357 — saving $2,168 per year. That's $1,030 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%$6,648
AustinCity0.5240%$3,901
Williamson CountyCounty0.3694%$2,750
Austin Community Collegespecial0.1034%$770
Williamson County FM/RdCounty0.0443%$330
Upper Brushy Creek WCIDWater0.0170%$127
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,525

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $681,388 would pay approximately $4,253 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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