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9817 CASTLE PINES DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,263 sqftBuilt 2003

Property at a Glance

This home is estimated between $269,367 and $640,284, with a best estimate of $336,700. 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

$269,367 $640,284
Best Estimate
$336,700
WCAD Value
$703,944
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 $269,367 and $640,284. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9821 CASTLE PINES DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,590 sqft Built 2002
Raw Value $737,684
Adjusted Value $624,252

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

9808 PASATIEMPO DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,100 sqft Built 2002
Raw Value $561,884
Adjusted Value $269,367

Adjusted -$293,910 for 837 sqft less living space and +$1,393 for being newer. Net adjustment: -$292,517.

15624 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,848 sqft Built 2002
Raw Value $540,728
Adjusted Value $336,700

Adjusted -$205,421 for 585 sqft less living space and +$1,393 for being newer. Net adjustment: -$204,028.

9812 PASATIEMPO DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,848 sqft Built 2002
Raw Value $540,728
Adjusted Value $336,700

Adjusted -$205,421 for 585 sqft less living space and +$1,393 for being newer. Net adjustment: -$204,028.

15701 PUMPKIN RIDGE DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,515 sqft Built 2002
Raw Value $727,380
Adjusted Value $640,284

Adjusted -$88,489 for 252 sqft less living space and +$1,393 for being newer. Net adjustment: -$87,096.

The Neighborhood

This home is in line with the R251501D - Avery Ranch South median of $708,305. 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
$703,944
Median
$708,305

This home is -0.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,736 across all districts. With a homestead exemption claimed, that drops to $11,618 — saving $2,118 per year. That's $968 per month a buyer should budget. The assessed value increased +5.5% vs the subdivision average of -3.8%. This above-average increase gives a protest opportunity score of 62 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,287
AustinCity0.5240%$3,689
Williamson CountyCounty0.3694%$2,601
Austin Community Collegespecial0.1034%$728
Williamson County FM/RdCounty0.0443%$312
Upper Brushy Creek WCIDWater0.0170%$120
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$13,736
62 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $336,700 would pay approximately $2,102 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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