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7 TAMMY LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,504 sqftBuilt 1977

Property at a Glance

This home is estimated between $474,561 and $617,148, with a best estimate of $544,921. That places the property below the R451581F - Jackie Thomison Sub median of $825,132, in a neighborhood that declined 11.3% over the past year.

Estimated Value Range

$474,561 $617,148
Best Estimate
$544,921
WCAD Value
$767,669
Low Confidence

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

There are 5 comparable properties within range, but none are in R451581F - Jackie Thomison Sub. The estimated range of $474,561 and $617,148 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,343 sqft Built 2005
Raw Value $410,844
Adjusted Value $474,561

Adjusted +$61,596 for 161 sqft more living space and +$2,121 for being newer. Net adjustment: +$63,717.

3 bed 2 bath 2,505 sqft Built 2011
Raw Value $542,729
Adjusted Value $544,921

Adjusted -$383 for 1 sqft less living space and +$2,575 for being newer. Net adjustment: +$2,192.

3 bed 2 bath 2,508 sqft Built 2011
Raw Value $616,103
Adjusted Value $617,148

Adjusted -$1,530 for 4 sqft less living space and +$2,575 for being newer. Net adjustment: +$1,045.

3 bed 2 bath 2,465 sqft Built 2010
Raw Value $490,384
Adjusted Value $507,805

Adjusted +$14,921 for 39 sqft more living space and +$2,500 for being newer. Net adjustment: +$17,421.

3 bed 2 bath 2,311 sqft Built 2010
Raw Value $469,313
Adjusted Value $545,652

Adjusted +$73,839 for 193 sqft more living space and +$2,500 for being newer. Net adjustment: +$76,339.

The Neighborhood

This home is valued 7.0% below the R451581F - Jackie Thomison Sub median of $825,132. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 11.3% over the past year.

R451581F - Jackie Thomison Sub

typical
25 Properties
$825,132 Median Value
-11.3% YoY Change
0% Have Pool
52% Have Garage
This Home
$767,669
Median
$825,132

This home is -7.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,724 across all districts. With a homestead exemption claimed, that drops to $10,332 — saving $1,392 per year. That's $861 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%$6,856
Williamson CountyCounty0.3694%$2,836
Austin Community Collegespecial0.1034%$794
Williamson County ESD #9 - Round RockESD0.0999%$767
Williamson County FM/RdCounty0.0443%$340
Upper Brushy Creek WCIDWater0.0170%$131
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$11,724

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $544,921 would pay approximately $3,401 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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