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9221 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,621 sqftBuilt 2005

Property at a Glance

This home is estimated between $667,390 and $980,734, with a best estimate of $685,458. 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

$667,390 $980,734
Best Estimate
$685,458
WCAD Value
$725,759
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 $667,390 and $980,734. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9217 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,893 sqft Built 2005
Raw Value $762,902
Adjusted Value $667,390

Adjusted -$95,512 for 272 sqft less living space. Net adjustment: -$95,512.

9225 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,415 sqft Built 2005
Raw Value $613,122
Adjusted Value $685,458

Adjusted +$72,336 for 206 sqft more living space. Net adjustment: +$72,336.

9213 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,613 sqft Built 2005
Raw Value $677,034
Adjusted Value $679,843

Adjusted +$2,809 for 8 sqft more living space. Net adjustment: +$2,809.

9216 CASTLE PINES DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,409 sqft Built 2006
Raw Value $714,903
Adjusted Value $787,953

Adjusted +$74,443 for 212 sqft more living space and -$1,393 for being older. Net adjustment: +$73,050.

9301 CASTLE PINES DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,929 sqft Built 2005
Raw Value $737,740
Adjusted Value $980,734

Adjusted +$242,994 for 692 sqft more living space. Net adjustment: +$242,994.

The Neighborhood

This home is valued 2.5% 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
$725,759
Median
$708,305

This home is +2.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,162 across all districts. With a homestead exemption claimed, that drops to $12,017 — saving $2,145 per year. That's $1,001 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%$6,482
AustinCity0.5240%$3,803
Williamson CountyCounty0.3694%$2,681
Austin Community Collegespecial0.1034%$750
Williamson County FM/RdCounty0.0443%$322
Upper Brushy Creek WCIDWater0.0170%$123
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,162

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $685,458 would pay approximately $4,279 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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