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9821 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath1,590 sqftBuilt 2002

Property at a Glance

This home is estimated between $659,067 and $817,376, with a best estimate of $753,948. 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

$659,067 $817,376
Best Estimate
$753,948
WCAD Value
$737,684
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 $659,067 and $817,376. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9817 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,263 sqft Built 2003
Raw Value $703,944
Adjusted Value $817,376

Adjusted +$114,825 for 327 sqft more living space and -$1,393 for being older. Net adjustment: +$113,432.

15701 PUMPKIN RIDGE DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,515 sqft Built 2002
Raw Value $727,380
Adjusted Value $753,716

Adjusted +$26,336 for 75 sqft more living space. Net adjustment: +$26,336.

15625 PUMPKIN RIDGE DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,284 sqft Built 2002
Raw Value $646,497
Adjusted Value $753,948

Adjusted +$107,451 for 306 sqft more living space. Net adjustment: +$107,451.

9820 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,027 sqft Built 2002
Raw Value $812,518
Adjusted Value $659,067

Adjusted -$153,451 for 437 sqft less living space. Net adjustment: -$153,451.

15621 PUMPKIN RIDGE DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,540 sqft Built 2002
Raw Value $745,485
Adjusted Value $763,042

Adjusted +$17,557 for 50 sqft more living space. Net adjustment: +$17,557.

The Neighborhood

This home is valued 4.1% 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
$737,684
Median
$708,305

This home is +4.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,394 across all districts. With a homestead exemption claimed, that drops to $12,235 — saving $2,159 per year. That's $1,020 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%$6,588
AustinCity0.5240%$3,866
Williamson CountyCounty0.3694%$2,725
Austin Community Collegespecial0.1034%$763
Williamson County FM/RdCounty0.0443%$327
Upper Brushy Creek WCIDWater0.0170%$125
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,394

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $753,948 would pay approximately $4,706 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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