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755 LOUIS HENNA BLVD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1 bath1,612 sqftBuilt 1898

Property at a Glance

This home is estimated between $-236,034 and $-178,990, with a best estimate of $-222,565. That places the property below the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322, in a neighborhood that declined 11.1% over the past year.

Estimated Value Range

$-236,034 $-178,990
Best Estimate
$-222,565
WCAD Value
$1,331,309
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs. The estimated range of $-236,034 and $-178,990 should be treated as a rough guide.

Comparable Properties (5)

3 bed 1,636 sqft Built 2021
Raw Value $344,196
Adjusted Value $-236,034

Adjusted -$7,892 for 24 sqft less living space and -$472,285 for being older and -$100,053 for no garage. Net adjustment: -$580,230.

3 bed 2 bath 1,578 sqft Built 2019
Raw Value $341,947
Adjusted Value $-211,531

Adjusted +$11,180 for 34 sqft more living space and -$464,605 for being older and -$100,053 for no garage. Net adjustment: -$553,478.

3 bed 2 bath 1,533 sqft Built 2007
Raw Value $313,614
Adjusted Value $-178,990

Adjusted +$25,978 for 79 sqft more living space and -$418,529 for being older and -$100,053 for no garage. Net adjustment: -$492,604.

3 bed 2 bath 1,732 sqft Built 2006
Raw Value $331,637
Adjusted Value $-222,565

Adjusted -$39,460 for 120 sqft less living space and -$414,689 for being older and -$100,053 for no garage. Net adjustment: -$554,202.

3 bed 2 bath 1,733 sqft Built 2007
Raw Value $323,832
Adjusted Value $-234,539

Adjusted -$39,789 for 121 sqft less living space and -$418,529 for being older and -$100,053 for no garage. Net adjustment: -$558,371.

The Neighborhood

This home is valued 124.0% above the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322. With 82 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 11.1% over the past year.

R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs

outlier high
82 Properties
$594,322 Median Value
-11.1% YoY Change
1% Have Pool
43% Have Garage
This Home
$1,331,309
Median
$594,322

This home is +124.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $19,557 across all districts. With a homestead exemption claimed, that drops to $18,070 — saving $1,487 per year. That's $1,506 per month a buyer should budget. The assessed value increased +4.1% vs the subdivision average of -11.1%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$11,437
Williamson CountyCounty0.3694%$4,731
Austin Community Collegespecial0.1034%$1,324
Williamson County ESD #9 - Round RockESD0.0999%$1,279
Williamson County FM/RdCounty0.0443%$568
Upper Brushy Creek WCIDWater0.0170%$218
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$19,557
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $-222,565 would pay approximately $-1,389 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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