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

9109 BRIMSTONE LN, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath2,017 sqftBuilt 1995

Property at a Glance

This home is estimated between $309,627 and $654,571, with a best estimate of $494,634. That places the property below the R230592E - WOODS / MEADOWS OF BRUSHY CREEK median of $534,481, in a neighborhood that declined 2.4% over the past year.

Estimated Value Range

$309,627 $654,571
Best Estimate
$494,634
WCAD Value
$447,561
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $309,627 and $654,571. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

15911 RUSTIC LN, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,023 sqft Built 1995
Raw Value $624,719
Adjusted Value $622,654

Adjusted -$2,065 for 6 sqft less living space. Net adjustment: -$2,065.

4 bed 2 bath 2,031 sqft Built 1996
Raw Value $509,694
Adjusted Value $494,634

Adjusted -$4,818 for 14 sqft less living space and -$10,242 for being older. Net adjustment: -$15,060.

8915 JOACHIM LN, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,604 sqft Built 1998
Raw Value $543,155
Adjusted Value $654,571

Adjusted +$142,141 for 413 sqft more living space and -$30,725 for being older. Net adjustment: +$111,416.

16007 RUSTIC LN, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,360 sqft Built 1995
Raw Value $518,008
Adjusted Value $399,959

Adjusted -$118,049 for 343 sqft less living space. Net adjustment: -$118,049.

4 bed 2 bath 2,442 sqft Built 1996
Raw Value $466,140
Adjusted Value $309,627

Adjusted -$146,271 for 425 sqft less living space and -$10,242 for being older. Net adjustment: -$156,513.

The Neighborhood

This home is valued 16.3% below the R230592E - WOODS / MEADOWS OF BRUSHY CREEK median of $534,481. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 2.4% over the past year.

R230592E - WOODS / MEADOWS OF BRUSHY CREEK

below average
1,552 Properties
$534,481 Median Value
-2.4% YoY Change
2% Have Pool
95% Have Garage
This Home
$447,561
Median
$534,481

This home is -16.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,567 across all districts. With a homestead exemption claimed, that drops to $7,234 — saving $1,333 per year. That's $603 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%$3,997
Brushy Creek MUDMUD0.3868%$1,731
Williamson CountyCounty0.3694%$1,654
Austin Community Collegespecial0.1034%$463
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$448
Williamson County FM/RdCounty0.0443%$198
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$8,567

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $494,634 would pay approximately $3,087 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