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3948 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath1,956 sqftBuilt 2005

Property at a Glance

This home is estimated between $494,773 and $730,373, with a best estimate of $592,636. 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

$494,773 $730,373
Best Estimate
$592,636
WCAD Value
$506,143
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 $494,773 and $730,373. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3951 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,679 sqft Built 2001
Raw Value $505,526
Adjusted Value $592,636

Adjusted +$79,251 for 277 sqft more living space and +$7,859 for being newer. Net adjustment: +$87,110.

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 $532,784

Adjusted -$22,889 for 80 sqft less living space and +$9,824 for being newer. Net adjustment: -$13,065.

3944 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,612 sqft Built 2000
Raw Value $556,215
Adjusted Value $664,460

Adjusted +$98,421 for 344 sqft more living space and +$9,824 for being newer. Net adjustment: +$108,245.

3940 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,200 sqft Built 2005
Raw Value $514,077
Adjusted Value $730,373

Adjusted +$216,296 for 756 sqft more living space. Net adjustment: +$216,296.

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 $494,773

Adjusted -$14,305 for 50 sqft less living space and +$9,824 for being newer. Net adjustment: -$4,481.

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
$506,143
Median
$514,276

This home is -1.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,107 across all districts. With a homestead exemption claimed, that drops to $7,763 — 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%$4,520
Round RockCity0.3720%$1,883
Williamson CountyCounty0.3694%$1,870
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%$9,107

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $592,636 would pay approximately $3,699 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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