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3946 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,787 sqftBuilt 2001

Property at a Glance

This home is estimated between $487,860 and $724,668, with a best estimate of $574,920. That places the property above the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$487,860 $724,668
Best Estimate
$574,920
WCAD Value
$505,993
High Confidence

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

Based on 5 comparable properties in R550600D - Forest Creek Sec 15,16,19,31, this home's estimated market value is between $487,860 and $724,668. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3958 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,775 sqft Built 2000
Raw Value $522,992
Adjusted Value $528,390

Adjusted +$3,433 for 12 sqft more living space and +$1,965 for being newer. Net adjustment: +$5,398.

3995 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,374 sqft Built 2002
Raw Value $458,723
Adjusted Value $574,920

Adjusted +$118,162 for 413 sqft more living space and -$1,965 for being older. Net adjustment: +$116,197.

3905 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,006 sqft Built 2000
Raw Value $499,254
Adjusted Value $724,668

Adjusted +$223,449 for 781 sqft more living space and +$1,965 for being newer. Net adjustment: +$225,414.

4003 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,861 sqft Built 2001
Raw Value $509,032
Adjusted Value $487,860

Adjusted -$21,172 for 74 sqft less living space. Net adjustment: -$21,172.

3932 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,152 sqft Built 1999
Raw Value $432,884
Adjusted Value $618,492

Adjusted +$181,678 for 635 sqft more living space and +$3,930 for being newer. Net adjustment: +$185,608.

The Neighborhood

This home is valued 1.6% below the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.7% over the past year.

R550600D - Forest Creek Sec 15,16,19,31

typical
274 Properties
$514,276 Median Value
-8.7% YoY Change
0% Have Pool
99% Have Garage
This Home
$505,993
Median
$514,276

This home is -1.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,104 across all districts. With a homestead exemption claimed, that drops to $7,760 — saving $1,344 per year. That's $647 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%$4,519
Round RockCity0.3720%$1,882
Williamson CountyCounty0.3694%$1,869
Austin Community Collegespecial0.1034%$523
Williamson County FM/RdCounty0.0443%$224
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,104

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $574,920 would pay approximately $3,589 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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