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16521 ENNIS TRL, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath1,586 sqftBuilt 2004

Property at a Glance

This home is estimated between $472,947 and $683,624, with a best estimate of $521,077. That places the property below 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

$472,947 $683,624
Best Estimate
$521,077
WCAD Value
$547,227
High Confidence

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

Based on 5 comparable properties in R250401D - AVERY RANCH EAST (PH. 1), this home's estimated market value is between $472,947 and $683,624. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16620 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,257 sqft Built 2004
Raw Value $552,973
Adjusted Value $653,773

Adjusted +$100,800 for 329 sqft more living space. Net adjustment: +$100,800.

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 $521,077

Adjusted -$128,681 for 420 sqft less living space and -$14,860 for being older. Net adjustment: -$143,541.

16705 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,464 sqft Built 2003
Raw Value $653,675
Adjusted Value $683,624

Adjusted +$37,379 for 122 sqft more living space and -$7,430 for being older. Net adjustment: +$29,949.

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 $475,604

Adjusted -$210,792 for 688 sqft less living space and -$7,430 for being older. Net adjustment: -$218,222.

16909 ENNIS TRL, AUSTIN, TX 78717
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,235 sqft Built 2003
Raw Value $679,221
Adjusted Value $472,947

Adjusted -$198,844 for 649 sqft less living space and -$7,430 for being older. Net adjustment: -$206,274.

The Neighborhood

This home is valued 4.2% 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)

typical
323 Properties
$524,962 Median Value
-2.2% YoY Change
0% Have Pool
100% Have Garage
This Home
$547,227
Median
$524,962

This home is +4.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,678 across all districts. With a homestead exemption claimed, that drops to $8,753 — saving $1,925 per year. That's $729 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%$4,887
AustinCity0.5240%$2,868
Williamson CountyCounty0.3694%$2,022
Austin Community Collegespecial0.1034%$566
Williamson County FM/RdCounty0.0443%$243
Upper Brushy Creek WCIDWater0.0170%$93
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$10,678

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $521,077 would pay approximately $3,253 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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