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

17121 ENNIS TRL, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,712 sqftBuilt 2002

Property at a Glance

This home is estimated between $651,952 and $880,925, with a best estimate of $835,452. That places the property above the R250401D - AVERY RANCH EAST (PH. 1) median of $524,962, in a neighborhood that declined 2.2% over the past year.

Estimated Value Range

$651,952 $880,925
Best Estimate
$835,452
WCAD Value
$621,217
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $651,952 and $880,925. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 2,825 sqft Built 2011
Raw Value $804,383
Adjusted Value $836,632

Adjusted -$34,621 for 113 sqft less living space and +$66,870 for being newer. Net adjustment: +$32,249.

17001 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,006 sqft Built 2002
Raw Value $664,618
Adjusted Value $880,925

Adjusted +$216,307 for 706 sqft more living space. Net adjustment: +$216,307.

17029 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,613 sqft Built 2003
Raw Value $614,190
Adjusted Value $651,952

Adjusted +$30,332 for 99 sqft more living space and +$7,430 for being newer. Net adjustment: +$37,762.

17304 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,668 sqft Built 2002
Raw Value $656,233
Adjusted Value $669,714

Adjusted +$13,481 for 44 sqft more living space. Net adjustment: +$13,481.

17113 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,274 sqft Built 2003
Raw Value $693,826
Adjusted Value $835,452

Adjusted +$134,196 for 438 sqft more living space and +$7,430 for being newer. Net adjustment: +$141,626.

The Neighborhood

This home is valued 18.3% above the R250401D - AVERY RANCH EAST (PH. 1) median of $524,962. With 323 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.2% over the past year.

R250401D - AVERY RANCH EAST (PH. 1)

above average
323 Properties
$524,962 Median Value
-2.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$621,217
Median
$524,962

This home is +18.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,122 across all districts. With a homestead exemption claimed, that drops to $10,106 — saving $2,016 per year. That's $842 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%$5,548
AustinCity0.5240%$3,255
Williamson CountyCounty0.3694%$2,295
Austin Community Collegespecial0.1034%$642
Williamson County FM/RdCounty0.0443%$275
Upper Brushy Creek WCIDWater0.0170%$106
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$12,122

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $835,452 would pay approximately $5,215 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 4/19/2026.

View full property details