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30 ROUNDVILLE LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath5,252 sqftBuilt 1979

Property at a Glance

This home is estimated between $605,908 and $1,220,614, with a best estimate of $1,183,556. That places the property below the R20IS - Storage Warehouse-e Round Rock median of $2,255,012, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$605,908 $1,220,614
Best Estimate
$1,183,556
WCAD Value
$1,071,811
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R20IS - Storage Warehouse-e Round Rock. The estimated range of $605,908 and $1,220,614 should be treated as a rough guide.

Comparable Properties (5)

3 bed 3,920 sqft Built 1986
Raw Value $397,437
Adjusted Value $605,908

Adjusted +$268,664 for 1,332 sqft more living space and -$60,193 for no garage. Net adjustment: +$208,471.

4 bed 4 bath 4,148 sqft Built 1983
Raw Value $975,136
Adjusted Value $1,197,812

Adjusted +$222,676 for 1,104 sqft more living space. Net adjustment: +$222,676.

3 bed 2 bath 2,017 sqft Built 1979
Raw Value $373,185
Adjusted Value $965,490

Adjusted +$652,498 for 3,235 sqft more living space and -$60,193 for no garage. Net adjustment: +$592,305.

3 bed 2 bath 2,584 sqft Built 1989
Raw Value $705,615
Adjusted Value $1,183,556

Adjusted +$538,134 for 2,668 sqft more living space and -$60,193 for no garage. Net adjustment: +$477,941.

3 bed 2 bath 2,230 sqft Built 1985
Raw Value $671,271
Adjusted Value $1,220,614

Adjusted +$609,536 for 3,022 sqft more living space and -$60,193 for no garage. Net adjustment: +$549,343.

The Neighborhood

This home is valued 52.5% below the R20IS - Storage Warehouse-e Round Rock median of $2,255,012. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.4% over the past year.

R20IS - Storage Warehouse-e Round Rock

outlier low
12 Properties
$2,255,012 Median Value
-5.4% YoY Change
0% Have Pool
0% Have Garage
This Home
$1,071,811
Median
$2,255,012

This home is -52.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $19,285 across all districts. With a homestead exemption claimed, that drops to $17,837 — saving $1,448 per year. That's $1,486 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%$9,572
Round RockCity0.3720%$3,987
Williamson CountyCounty0.3694%$3,960
Austin Community Collegespecial0.1034%$1,108
Williamson County FM/RdCounty0.0443%$475
Upper Brushy Creek WCIDWater0.0170%$182
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$19,285

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,183,556 would pay approximately $7,388 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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