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15617 BELFIN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,301 sqftBuilt 2005

Property at a Glance

This home is estimated between $669,211 and $969,505, with a best estimate of $847,262. 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

$669,211 $969,505
Best Estimate
$847,262
WCAD Value
$588,591
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 $669,211 and $969,505. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15621 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,355 sqft Built 2005
Raw Value $637,320
Adjusted Value $969,505

Adjusted +$332,185 for 946 sqft more living space. Net adjustment: +$332,185.

15613 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,875 sqft Built 2005
Raw Value $772,289
Adjusted Value $921,878

Adjusted +$149,589 for 426 sqft more living space. Net adjustment: +$149,589.

15609 BELFIN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,402 sqft Built 2005
Raw Value $704,677
Adjusted Value $669,211

Adjusted -$35,466 for 101 sqft less living space. Net adjustment: -$35,466.

15605 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,297 sqft Built 2005
Raw Value $686,161
Adjusted Value $687,566

Adjusted +$1,405 for 4 sqft more living space. Net adjustment: +$1,405.

15616 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,954 sqft Built 2005
Raw Value $725,414
Adjusted Value $847,262

Adjusted +$121,848 for 347 sqft more living space. Net adjustment: +$121,848.

The Neighborhood

This home is valued 16.9% 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

below average
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$588,591
Median
$708,305

This home is -16.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,485 across all districts. With a homestead exemption claimed, that drops to $9,509 — saving $1,976 per year. That's $792 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%$5,257
AustinCity0.5240%$3,084
Williamson CountyCounty0.3694%$2,175
Austin Community Collegespecial0.1034%$609
Williamson County FM/RdCounty0.0443%$261
Upper Brushy Creek WCIDWater0.0170%$100
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$11,485

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $847,262 would pay approximately $5,289 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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