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9517 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,455 sqftBuilt 2006

Property at a Glance

This home is estimated between $663,263 and $983,555, with a best estimate of $911,397. That places the property above the R251501D - Avery Ranch South median of $708,305, in a neighborhood that declined 3.8% over the past year.

Estimated Value Range

$663,263 $983,555
Best Estimate
$911,397
WCAD Value
$615,899
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 $663,263 and $983,555. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9513 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,796 sqft Built 2005
Raw Value $746,458
Adjusted Value $979,257

Adjusted +$231,406 for 659 sqft more living space and +$1,393 for being newer. Net adjustment: +$232,799.

9521 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,704 sqft Built 2004
Raw Value $644,899
Adjusted Value $911,397

Adjusted +$263,712 for 751 sqft more living space and +$2,786 for being newer. Net adjustment: +$266,498.

9525 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,258 sqft Built 2004
Raw Value $591,301
Adjusted Value $663,263

Adjusted +$69,176 for 197 sqft more living space and +$2,786 for being newer. Net adjustment: +$71,962.

9505 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,874 sqft Built 2005
Raw Value $658,256
Adjusted Value $863,666

Adjusted +$204,017 for 581 sqft more living space and +$1,393 for being newer. Net adjustment: +$205,410.

14901 FERNHILL DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,754 sqft Built 2006
Raw Value $737,401
Adjusted Value $983,555

Adjusted +$246,154 for 701 sqft more living space. Net adjustment: +$246,154.

The Neighborhood

This home is valued 13.0% 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

typical
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$615,899
Median
$708,305

This home is -13.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,018 across all districts. With a homestead exemption claimed, that drops to $10,008 — saving $2,010 per year. That's $834 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%$5,501
AustinCity0.5240%$3,227
Williamson CountyCounty0.3694%$2,275
Austin Community Collegespecial0.1034%$637
Williamson County FM/RdCounty0.0443%$273
Upper Brushy Creek WCIDWater0.0170%$105
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$12,018

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $911,397 would pay approximately $5,689 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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