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

1300 GREEN DOWNS DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1 bath1,458 sqftBuilt 1980

Property at a Glance

This home is estimated between $258,549 and $321,809, with a best estimate of $295,252. 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

$258,549 $321,809
Best Estimate
$295,252
WCAD Value
$274,451
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 $258,549 and $321,809. 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 $298,115

Adjusted +$79,691 for 346 sqft more living space. Net adjustment: +$79,691.

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 $295,252

Adjusted +$61,726 for 268 sqft more living space and -$348 for being older. Net adjustment: +$61,378.

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 $321,809

Adjusted +$67,254 for 292 sqft more living space and -$697 for being older. Net adjustment: +$66,557.

1402 GREEN DOWNS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 1,386 sqft Built 1980
Raw Value $246,775
Adjusted Value $263,358

Adjusted +$16,583 for 72 sqft more living space. Net adjustment: +$16,583.

1303 GREEN TERRACE DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,457 sqft Built 1993
Raw Value $262,847
Adjusted Value $258,549

Adjusted +$230 for 1 sqft more living space and -$4,528 for being older. Net adjustment: -$4,298.

The Neighborhood

This home is valued 3.3% 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

typical
1,079 Properties
$265,799 Median Value
-10.6% YoY Change
2% Have Pool
90% Have Garage
This Home
$274,451
Median
$265,799

This home is +3.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $4,938 across all districts. With a homestead exemption claimed, that drops to $3,637 — saving $1,301 per year. That's $303 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%$2,451
Round RockCity0.3720%$1,021
Williamson CountyCounty0.3694%$1,014
Austin Community Collegespecial0.1034%$284
Williamson County FM/RdCounty0.0443%$122
Upper Brushy Creek WCIDWater0.0170%$47
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,938

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $295,252 would pay approximately $1,843 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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