Beta Williamson County, TX only — data and coverage are limited during early access.

15512 BELFIN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath1,900 sqftBuilt 2005

Property at a Glance

This home is estimated between $442,009 and $904,874, with a best estimate of $686,552. 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

$442,009 $904,874
Best Estimate
$686,552
WCAD Value
$739,190
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 $442,009 and $904,874. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15508 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,297 sqft Built 2005
Raw Value $693,132
Adjusted Value $904,874

Adjusted +$211,742 for 603 sqft more living space. Net adjustment: +$211,742.

15516 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
5 bed 4 bath 2,250 sqft Built 2005
Raw Value $786,533
Adjusted Value $663,631

Adjusted -$122,902 for 350 sqft less living space. Net adjustment: -$122,902.

15504 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,854 sqft Built 2005
Raw Value $777,003
Adjusted Value $442,009

Adjusted -$334,994 for 954 sqft less living space. Net adjustment: -$334,994.

15412 FERNHILL DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,041 sqft Built 2006
Raw Value $737,457
Adjusted Value $686,552

Adjusted -$49,512 for 141 sqft less living space and -$1,393 for being older. Net adjustment: -$50,905.

15408 FERNHILL DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,879 sqft Built 2007
Raw Value $740,101
Adjusted Value $744,689

Adjusted +$7,374 for 21 sqft more living space and -$2,786 for being older. Net adjustment: +$4,588.

The Neighborhood

This home is valued 4.4% 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
$739,190
Median
$708,305

This home is +4.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,424 across all districts. With a homestead exemption claimed, that drops to $12,262 — saving $2,162 per year. That's $1,022 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%$6,602
AustinCity0.5240%$3,873
Williamson CountyCounty0.3694%$2,731
Austin Community Collegespecial0.1034%$764
Williamson County FM/RdCounty0.0443%$328
Upper Brushy Creek WCIDWater0.0170%$126
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,424

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $686,552 would pay approximately $4,285 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.

View full property details