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15812 BELFIN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,481 sqftBuilt 2005

Property at a Glance

This home is estimated between $656,594 and $931,573, with a best estimate of $665,230. 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

$656,594 $931,573
Best Estimate
$665,230
WCAD Value
$625,492
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 $656,594 and $931,573. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9308 CASTLE PINES DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,279 sqft Built 2005
Raw Value $585,720
Adjusted Value $656,652

Adjusted +$70,932 for 202 sqft more living space. Net adjustment: +$70,932.

15800 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,549 sqft Built 2005
Raw Value $680,472
Adjusted Value $656,594

Adjusted -$23,878 for 68 sqft less living space. Net adjustment: -$23,878.

9301 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,929 sqft Built 2005
Raw Value $737,740
Adjusted Value $931,573

Adjusted +$193,833 for 552 sqft more living space. Net adjustment: +$193,833.

9309 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,988 sqft Built 2005
Raw Value $728,016
Adjusted Value $901,132

Adjusted +$173,116 for 493 sqft more living space. Net adjustment: +$173,116.

15809 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,301 sqft Built 2005
Raw Value $602,024
Adjusted Value $665,230

Adjusted +$63,206 for 180 sqft more living space. Net adjustment: +$63,206.

The Neighborhood

This home is valued 11.7% 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
$625,492
Median
$708,305

This home is -11.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,205 across all districts. With a homestead exemption claimed, that drops to $10,184 — saving $2,021 per year. That's $849 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%$5,586
AustinCity0.5240%$3,278
Williamson CountyCounty0.3694%$2,311
Austin Community Collegespecial0.1034%$647
Williamson County FM/RdCounty0.0443%$277
Upper Brushy Creek WCIDWater0.0170%$106
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$12,205

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $665,230 would pay approximately $4,152 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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