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1203 GREENBRIAR LOOP, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,504 sqftBuilt 1984

Property at a Glance

This home is estimated between $267,988 and $386,394, with a best estimate of $323,663. That places the property above 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

$267,988 $386,394
Best Estimate
$323,663
WCAD Value
$310,979
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 $267,988 and $386,394. 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 $267,988

Adjusted +$14,741 for 64 sqft more living space and -$697 for being older. Net adjustment: +$14,044.

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 $386,394

Adjusted +$147,406 for 640 sqft more living space. Net adjustment: +$147,406.

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 $323,663

Adjusted +$62,648 for 272 sqft more living space. Net adjustment: +$62,648.

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 $313,480

Adjusted +$75,085 for 326 sqft more living space. Net adjustment: +$75,085.

1021 GREENBRIAR LOOP, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 864 sqft Built 1984
Raw Value $224,775
Adjusted Value $372,181

Adjusted +$147,406 for 640 sqft more living space. Net adjustment: +$147,406.

The Neighborhood

This home is valued 17.0% above the R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE median of $265,799. With 1,079 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 10.6% over the past year.

R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE

above average
1,079 Properties
$265,799 Median Value
-10.6% YoY Change
2% Have Pool
90% Have Garage
This Home
$310,979
Median
$265,799

This home is +17.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,595 across all districts. With a homestead exemption claimed, that drops to $4,288 — saving $1,307 per year. That's $357 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%$2,777
Round RockCity0.3720%$1,157
Williamson CountyCounty0.3694%$1,149
Austin Community Collegespecial0.1034%$322
Williamson County FM/RdCounty0.0443%$138
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,595

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $323,663 would pay approximately $2,020 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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