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

9803 QUILBERRY DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed2 bath2,503 sqftBuilt 1978

Property at a Glance

This home is estimated between $516,119 and $679,103, with a best estimate of $570,090. That places the property above the R371378G - FOREST NORTH PHS 3-5 median of $421,794, in a neighborhood that declined 5.7% over the past year.

Estimated Value Range

$516,119 $679,103
Best Estimate
$570,090
WCAD Value
$549,631
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R371378G - FOREST NORTH PHS 3-5, this home's estimated market value is between $516,119 and $679,103. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9801 QUILBERRY DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,095 sqft Built 1977
Raw Value $419,172
Adjusted Value $516,119

Adjusted +$97,047 for 408 sqft more living space and -$100 for being older. Net adjustment: +$96,947.

13501 BROADMEADE AVE, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,806 sqft Built 1977
Raw Value $513,415
Adjusted Value $679,103

Adjusted +$165,788 for 697 sqft more living space and -$100 for being older. Net adjustment: +$165,688.

13500 PADDINGTON CIR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,808 sqft Built 1978
Raw Value $404,778
Adjusted Value $570,090

Adjusted +$165,312 for 695 sqft more living space. Net adjustment: +$165,312.

9710 BRAES VALLEY ST, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
3 bed 2 bath 2,039 sqft Built 1977
Raw Value $417,771
Adjusted Value $528,038

Adjusted +$110,367 for 464 sqft more living space and -$100 for being older. Net adjustment: +$110,267.

13502 PADDINGTON CIR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,455 sqft Built 1978
Raw Value $377,549
Adjusted Value $626,826

Adjusted +$249,277 for 1,048 sqft more living space. Net adjustment: +$249,277.

The Neighborhood

This home is valued 30.3% above the R371378G - FOREST NORTH PHS 3-5 median of $421,794. With 742 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.7% over the past year.

R371378G - FOREST NORTH PHS 3-5

above average
742 Properties
$421,794 Median Value
-5.7% YoY Change
6% Have Pool
92% Have Garage
This Home
$549,631
Median
$421,794

This home is +30.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,394 across all districts. With a homestead exemption claimed, that drops to $7,043 — saving $1,351 per year. That's $587 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%$4,909
Williamson CountyCounty0.3694%$2,031
Austin Community Collegespecial0.1034%$568
Williamson County ESD #1 - Jollyville VFDESD0.1000%$550
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$93
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$8,394

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $570,090 would pay approximately $3,558 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