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9100 RATTLESNAKE TRL, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

5 bed4 bath3,159 sqftBuilt 2019

Property at a Glance

This home is estimated between $1,116,117 and $1,538,877, with a best estimate of $1,458,693. That places the property above the R257616A - HERITAGE AT PEARSON RANCH median of $1,253,608, in a neighborhood that declined 2.6% over the past year.

Estimated Value Range

$1,116,117 $1,538,877
Best Estimate
$1,458,693
WCAD Value
$1,380,168
High Confidence

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

Based on 5 comparable properties in R257616A - HERITAGE AT PEARSON RANCH, this home's estimated market value is between $1,116,117 and $1,538,877. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9109 RATTLESNAKE TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,863 sqft Built 2019
Raw Value $1,323,982
Adjusted Value $1,457,341

Adjusted +$133,359 for 296 sqft more living space. Net adjustment: +$133,359.

9101 RATTLESNAKE TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,883 sqft Built 2019
Raw Value $1,399,167
Adjusted Value $1,523,515

Adjusted +$124,348 for 276 sqft more living space. Net adjustment: +$124,348.

10403 LAVON BND, AUSTIN, TX 78717
0.72 mi 100% similar Same subdivision
5 bed 4 bath 3,008 sqft Built 2019
Raw Value $1,390,662
Adjusted Value $1,458,693

Adjusted +$68,031 for 151 sqft more living space. Net adjustment: +$68,031.

9104 RATTLESNAKE TRL, AUSTIN, TX 78717
0.00 mi 99% similar Same subdivision
4 bed 3 bath 2,384 sqft Built 2020
Raw Value $1,189,745
Adjusted Value $1,538,877

Adjusted +$349,166 for 775 sqft more living space and -$34 for being older. Net adjustment: +$349,132.

9105 RATTLESNAKE TRL, AUSTIN, TX 78717
0.00 mi 96% similar Same subdivision
3 bed 2 bath 2,700 sqft Built 2020
Raw Value $909,354
Adjusted Value $1,116,117

Adjusted +$206,797 for 459 sqft more living space and -$34 for being older. Net adjustment: +$206,763.

The Neighborhood

This home is valued 10.1% above the R257616A - HERITAGE AT PEARSON RANCH median of $1,253,608. With 265 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.6% over the past year.

R257616A - HERITAGE AT PEARSON RANCH

typical
265 Properties
$1,253,608 Median Value
-2.6% YoY Change
1% Have Pool
100% Have Garage
This Home
$1,380,168
Median
$1,253,608

This home is +10.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $25,987 across all districts. With a homestead exemption claimed, that drops to $23,094 — saving $2,893 per year. That's $1,925 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%$11,894
AustinCity0.5240%$6,979
Williamson CountyCounty0.3694%$4,920
Austin Community Collegespecial0.1034%$1,377
Williamson County FM/RdCounty0.0443%$590
Upper Brushy Creek WCIDWater0.0170%$226
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$25,987

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,458,693 would pay approximately $9,105 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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