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3931 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,094 sqftBuilt 1999

Property at a Glance

This home is estimated between $285,658 and $560,478, with a best estimate of $372,719. That places the property below 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

$285,658 $560,478
Best Estimate
$372,719
WCAD Value
$427,233
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 $285,658 and $560,478. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4008 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 3 bath 2,036 sqft Built 2000
Raw Value $545,849
Adjusted Value $560,478

Adjusted +$16,594 for 58 sqft more living space and -$1,965 for being older. Net adjustment: +$14,629.

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 $326,189

Adjusted -$194,838 for 681 sqft less living space and -$1,965 for being older. Net adjustment: -$196,803.

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 $372,719

Adjusted -$80,110 for 280 sqft less living space and -$5,894 for being older. Net adjustment: -$86,004.

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 $522,466

Adjusted +$25,177 for 88 sqft more living space and -$1,965 for being older. Net adjustment: +$23,212.

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 $285,658

Adjusted -$219,444 for 767 sqft less living space and -$3,930 for being older. Net adjustment: -$223,374.

The Neighborhood

This home is valued 16.9% 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

below average
274 Properties
$514,276 Median Value
-8.7% YoY Change
0% Have Pool
99% Have Garage
This Home
$427,233
Median
$514,276

This home is -16.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,687 across all districts. With a homestead exemption claimed, that drops to $6,358 — saving $1,329 per year. That's $530 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%$3,816
Round RockCity0.3720%$1,589
Williamson CountyCounty0.3694%$1,578
Austin Community Collegespecial0.1034%$442
Williamson County FM/RdCounty0.0443%$189
Upper Brushy Creek WCIDWater0.0170%$73
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,687

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $372,719 would pay approximately $2,327 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 4/19/2026.

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