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1128 GREENBRIAR LOOP, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,078 sqftBuilt 1984

Property at a Glance

This home is estimated between $169,871 and $332,232, with a best estimate of $225,545. That places the property below the R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE median of $265,799, in a neighborhood that declined 10.6% over the past year.

Estimated Value Range

$169,871 $332,232
Best Estimate
$225,545
WCAD Value
$266,965
High Confidence

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

Based on 5 comparable properties in R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE, this home's estimated market value is between $169,871 and $332,232. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1405 CLEARVIEW LOOP, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,440 sqft Built 1986
Raw Value $253,944
Adjusted Value $169,871

Adjusted -$83,376 for 362 sqft less living space and -$697 for being older. Net adjustment: -$84,073.

1225 GREENBRIAR LOOP, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 864 sqft Built 1984
Raw Value $238,988
Adjusted Value $288,277

Adjusted +$49,289 for 214 sqft more living space. Net adjustment: +$49,289.

1414 CLEARVIEW LOOP, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 945 sqft Built 1994
Raw Value $305,082
Adjusted Value $332,232

Adjusted +$30,633 for 133 sqft more living space and -$3,483 for being older. Net adjustment: +$27,150.

1017 GREENBRIAR LOOP, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,232 sqft Built 1984
Raw Value $261,015
Adjusted Value $225,545

Adjusted -$35,470 for 154 sqft less living space. Net adjustment: -$35,470.

1207 GREENBRIAR LOOP, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,178 sqft Built 1984
Raw Value $238,395
Adjusted Value $215,363

Adjusted -$23,032 for 100 sqft less living space. Net adjustment: -$23,032.

The Neighborhood

This home is in line with the R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE median of $265,799. Note that values in this subdivision declined 10.6% over the past year.

R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE

typical
1,079 Properties
$265,799 Median Value
-10.6% YoY Change
2% Have Pool
90% Have Garage
This Home
$266,965
Median
$265,799

This home is +0.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $4,803 across all districts. With a homestead exemption claimed, that drops to $3,504 — saving $1,299 per year. That's $292 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%$2,384
Round RockCity0.3720%$993
Williamson CountyCounty0.3694%$986
Austin Community Collegespecial0.1034%$276
Williamson County FM/RdCounty0.0443%$118
Upper Brushy Creek WCIDWater0.0170%$45
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,803

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $225,545 would pay approximately $1,408 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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