Beta Williamson County, TX only — data and coverage are limited during early access.

1403 GREEN DOWNS DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,200 sqftBuilt 1980

Property at a Glance

This home is estimated between $168,037 and $307,076, with a best estimate of $248,122. 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

$168,037 $307,076
Best Estimate
$248,122
WCAD Value
$235,279
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 $168,037 and $307,076. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1000 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,197 sqft Built 1983
Raw Value $257,923
Adjusted Value $257,569

Adjusted +$691 for 3 sqft more living space and -$1,045 for being older. Net adjustment: -$354.

1005 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,164 sqft Built 1981
Raw Value $240,178
Adjusted Value $248,122

Adjusted +$8,292 for 36 sqft more living space and -$348 for being older. Net adjustment: +$7,944.

1109 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 94% similar Same subdivision
3 bed 1 bath 997 sqft Built 1980
Raw Value $260,321
Adjusted Value $307,076

Adjusted +$46,755 for 203 sqft more living space. Net adjustment: +$46,755.

1102 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 92% similar Same subdivision
3 bed 1 bath 1,190 sqft Built 1981
Raw Value $233,874
Adjusted Value $235,829

Adjusted +$2,303 for 10 sqft more living space and -$348 for being older. Net adjustment: +$1,955.

1305 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 90% similar Same subdivision
3 bed 2 bath 1,660 sqft Built 1980
Raw Value $273,985
Adjusted Value $168,037

Adjusted -$105,948 for 460 sqft less living space. Net adjustment: -$105,948.

The Neighborhood

This home is valued 11.5% below the R522492G - GREENSLOPES - DOVE CREEK - TWIN RIDGE median of $265,799. That positions it competitively for buyers comparing within the neighborhood. 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
$235,279
Median
$265,799

This home is -11.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,233 across all districts. With a homestead exemption claimed, that drops to $2,940 — saving $1,293 per year. That's $245 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%$2,101
Round RockCity0.3720%$875
Williamson CountyCounty0.3694%$869
Austin Community Collegespecial0.1034%$243
Williamson County FM/RdCounty0.0443%$104
Upper Brushy Creek WCIDWater0.0170%$40
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,233

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $248,122 would pay approximately $1,549 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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