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9520 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath1,843 sqftBuilt 2005

Property at a Glance

This home is estimated between $436,348 and $695,101, with a best estimate of $535,133. 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

$436,348 $695,101
Best Estimate
$535,133
WCAD Value
$729,295
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 $436,348 and $695,101. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9524 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,697 sqft Built 2004
Raw Value $482,473
Adjusted Value $535,133

Adjusted +$51,267 for 146 sqft more living space and +$1,393 for being newer. Net adjustment: +$52,660.

9512 CASTLE PINES DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,114 sqft Built 2005
Raw Value $560,469
Adjusted Value $465,308

Adjusted -$95,161 for 271 sqft less living space. Net adjustment: -$95,161.

9728 MORGAN CREEK DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,081 sqft Built 2006
Raw Value $735,563
Adjusted Value $650,597

Adjusted -$83,573 for 238 sqft less living space and -$1,393 for being older. Net adjustment: -$84,966.

9732 MORGAN CREEK DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,456 sqft Built 2006
Raw Value $652,994
Adjusted Value $436,348

Adjusted -$215,253 for 613 sqft less living space and -$1,393 for being older. Net adjustment: -$216,646.

9521 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,704 sqft Built 2004
Raw Value $644,899
Adjusted Value $695,101

Adjusted +$48,809 for 139 sqft more living space and +$1,393 for being newer. Net adjustment: +$50,202.

The Neighborhood

This home is valued 3.0% 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
$729,295
Median
$708,305

This home is +3.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,231 across all districts. With a homestead exemption claimed, that drops to $12,081 — saving $2,150 per year. That's $1,007 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%$6,513
AustinCity0.5240%$3,822
Williamson CountyCounty0.3694%$2,694
Austin Community Collegespecial0.1034%$754
Williamson County FM/RdCounty0.0443%$323
Upper Brushy Creek WCIDWater0.0170%$124
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,231

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $535,133 would pay approximately $3,340 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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