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2900 GATTIS SCHOOL RD, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,375 sqftBuilt 1985

Property at a Glance

This home is estimated between $279,361 and $1,139,618, with a best estimate of $460,392. 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

$279,361 $1,139,618
Best Estimate
$460,392
WCAD Value
$466,343
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 $279,361 and $1,139,618 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 3,001 sqft Built 2003
Raw Value $554,328
Adjusted Value $279,361

Adjusted -$205,852 for 626 sqft less living space and -$69,115 for being older. Net adjustment: -$274,967.

3 bed 1,996 sqft Built 1996
Raw Value $957,173
Adjusted Value $1,139,618

Adjusted +$124,629 for 379 sqft more living space and -$42,237 for being older and +$100,053 for having a garage. Net adjustment: +$182,445.

3 bed 2 bath 1,896 sqft Built 2005
Raw Value $379,673
Adjusted Value $460,392

Adjusted +$157,513 for 479 sqft more living space and -$76,794 for being older. Net adjustment: +$80,719.

3 bed 2 bath 2,171 sqft Built 2016
Raw Value $443,541
Adjusted Value $391,593

Adjusted +$67,083 for 204 sqft more living space and -$119,031 for being older. Net adjustment: -$51,948.

4 bed 2 bath 2,040 sqft Built 1992
Raw Value $445,287
Adjusted Value $528,569

Adjusted +$110,160 for 335 sqft more living space and -$26,878 for being older. Net adjustment: +$83,282.

The Neighborhood

This home is valued 21.5% below the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 11.1% over the past year.

R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs

below average
82 Properties
$594,322 Median Value
-11.1% YoY Change
1% Have Pool
43% Have Garage
This Home
$466,343
Median
$594,322

This home is -21.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,122 across all districts. With a homestead exemption claimed, that drops to $5,785 — saving $1,337 per year. That's $482 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%$4,165
Williamson CountyCounty0.3694%$1,723
Austin Community Collegespecial0.1034%$482
Williamson County ESD #9 - Round RockESD0.0999%$466
Williamson County FM/RdCounty0.0443%$207
Upper Brushy Creek WCIDWater0.0170%$79
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$7,122

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $460,392 would pay approximately $2,874 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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