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1001 TWIN TERRACE CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,628 sqftBuilt 1999

Property at a Glance

This home is estimated between $509,795 and $651,657, with a best estimate of $537,385. That places the property above the R501598E - Forest Ridge, Small Lots median of $533,875, in a neighborhood that appreciated 4.6% over the past year.

Estimated Value Range

$509,795 $651,657
Best Estimate
$537,385
WCAD Value
$533,116
High Confidence

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

Based on 5 comparable properties in R501598E - Forest Ridge, Small Lots, this home's estimated market value is between $509,795 and $651,657. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1022 TWIN TERRACE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,629 sqft Built 1999
Raw Value $651,984
Adjusted Value $651,657

Adjusted -$327 for 1 sqft less living space. Net adjustment: -$327.

1019 TWIN TERRACE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,713 sqft Built 1999
Raw Value $537,573
Adjusted Value $509,795

Adjusted -$27,778 for 85 sqft less living space. Net adjustment: -$27,778.

1017 TWIN TERRACE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,657 sqft Built 1999
Raw Value $541,510
Adjusted Value $532,033

Adjusted -$9,477 for 29 sqft less living space. Net adjustment: -$9,477.

1012 TWIN TERRACE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,242 sqft Built 1999
Raw Value $489,202
Adjusted Value $615,347

Adjusted +$126,145 for 386 sqft more living space. Net adjustment: +$126,145.

1020 TWIN TERRACE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,644 sqft Built 1999
Raw Value $542,614
Adjusted Value $537,385

Adjusted -$5,229 for 16 sqft less living space. Net adjustment: -$5,229.

The Neighborhood

This home is in line with the R501598E - Forest Ridge, Small Lots median of $533,875. The neighborhood appreciated 4.6% over the past year.

R501598E - Forest Ridge, Small Lots

typical
269 Properties
$533,875 Median Value
+4.6% YoY Change
0% Have Pool
99% Have Garage
This Home
$533,116
Median
$533,875

This home is -0.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,592 across all districts. With a homestead exemption claimed, that drops to $8,243 — saving $1,349 per year. That's $687 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%$4,761
Round RockCity0.3720%$1,983
Williamson CountyCounty0.3694%$1,970
Austin Community Collegespecial0.1034%$551
Williamson County FM/RdCounty0.0443%$236
Upper Brushy Creek WCIDWater0.0170%$91
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,592

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $537,385 would pay approximately $3,354 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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