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

1005 GREEN DOWNS DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,164 sqftBuilt 1981

Property at a Glance

This home is estimated between $227,886 and $384,780, with a best estimate of $254,443. 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

$227,886 $384,780
Best Estimate
$254,443
WCAD Value
$240,178
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 $227,886 and $384,780. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1303 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,112 sqft Built 1980
Raw Value $218,424
Adjusted Value $230,749

Adjusted +$11,977 for 52 sqft more living space and +$348 for being newer. Net adjustment: +$12,325.

1102 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 1 bath 1,190 sqft Built 1981
Raw Value $233,874
Adjusted Value $227,886

Adjusted -$5,988 for 26 sqft less living space. Net adjustment: -$5,988.

1004 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,166 sqft Built 1982
Raw Value $255,252
Adjusted Value $254,443

Adjusted -$461 for 2 sqft less living space and -$348 for being older. Net adjustment: -$809.

1402 GREEN TERRACE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 986 sqft Built 1993
Raw Value $347,963
Adjusted Value $384,780

Adjusted +$40,997 for 178 sqft more living space and -$4,180 for being older. Net adjustment: +$36,817.

1319 GREEN TERRACE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,227 sqft Built 1993
Raw Value $308,829
Adjusted Value $290,139

Adjusted -$14,510 for 63 sqft less living space and -$4,180 for being older. Net adjustment: -$18,690.

The Neighborhood

This home is valued 9.6% 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
$240,178
Median
$265,799

This home is -9.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,321 across all districts. With a homestead exemption claimed, that drops to $3,027 — saving $1,294 per year. That's $252 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%$2,145
Round RockCity0.3720%$893
Williamson CountyCounty0.3694%$887
Austin Community Collegespecial0.1034%$248
Williamson County FM/RdCounty0.0443%$106
Upper Brushy Creek WCIDWater0.0170%$41
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,321

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $254,443 would pay approximately $1,588 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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