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2900 GATTIS SCHOOL RD, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed1,996 sqftBuilt 1996

Property at a Glance

This home is estimated between $388,567 and $633,839, with a best estimate of $432,008. That places the property above the AM20SLXI - MH - SGT/SHU/SRR median of $233,506, in a neighborhood that appreciated 30.5% over the past year.

Estimated Value Range

$388,567 $633,839
Best Estimate
$432,008
WCAD Value
$957,173
Low Confidence

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

There are 5 comparable properties within range, but none are in AM20SLXI - MH - SGT/SHU/SRR. The estimated range of $388,567 and $633,839 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,896 sqft Built 2005
Raw Value $379,673
Adjusted Value $414,342

Adjusted +$13,787 for 100 sqft more living space and +$20,882 for being newer. Net adjustment: +$34,669.

3 bed 2 bath 2,171 sqft Built 2016
Raw Value $443,541
Adjusted Value $465,817

Adjusted -$24,128 for 175 sqft less living space and +$46,404 for being newer. Net adjustment: +$22,276.

4 bed 2 bath 2,375 sqft Built 1985
Raw Value $466,343
Adjusted Value $388,567

Adjusted -$52,254 for 379 sqft less living space and -$25,522 for being older. Net adjustment: -$77,776.

4 bed 3 bath 1,625 sqft Built 2006
Raw Value $559,486
Adjusted Value $633,839

Adjusted +$51,151 for 371 sqft more living space and +$23,202 for being newer. Net adjustment: +$74,353.

4 bed 2 bath 3,001 sqft Built 2003
Raw Value $554,328
Adjusted Value $432,008

Adjusted -$138,561 for 1,005 sqft less living space and +$16,241 for being newer. Net adjustment: -$122,320.

The Neighborhood

This home is valued 309.9% above the AM20SLXI - MH - SGT/SHU/SRR median of $233,506. With 471 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 30.5% over the past year.

AM20SLXI - MH - SGT/SHU/SRR

outlier high
471 Properties
$233,506 Median Value
+30.5% YoY Change
2% Have Pool
3% Have Garage
This Home
$957,173
Median
$233,506

This home is +309.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,618 across all districts. With a homestead exemption claimed, that drops to $13,191 — saving $1,427 per year. That's $1,099 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%$8,549
Williamson CountyCounty0.3694%$3,536
Austin Community Collegespecial0.1034%$990
Williamson County ESD #9 - Round RockESD0.0999%$956
Williamson County FM/RdCounty0.0443%$424
Upper Brushy Creek WCIDWater0.0170%$163
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$14,618

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $432,008 would pay approximately $2,697 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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