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3905 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,006 sqftBuilt 2000

Property at a Glance

This home is estimated between $302,976 and $668,941, with a best estimate of $537,266. 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

$302,976 $668,941
Best Estimate
$537,266
WCAD Value
$499,254
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 $302,976 and $668,941. 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 $597,118

Adjusted +$93,557 for 327 sqft more living space and -$1,965 for being older. Net adjustment: +$91,592.

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 $537,266

Adjusted -$8,583 for 30 sqft less living space. Net adjustment: -$8,583.

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 $302,976

Adjusted -$220,016 for 769 sqft less living space. Net adjustment: -$220,016.

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 $668,941

Adjusted +$112,726 for 394 sqft more living space. Net adjustment: +$112,726.

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 $349,506

Adjusted -$105,287 for 368 sqft less living space and -$3,930 for being older. Net adjustment: -$109,217.

The Neighborhood

This home is valued 2.9% 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

typical
274 Properties
$514,276 Median Value
-8.7% YoY Change
0% Have Pool
99% Have Garage
This Home
$499,254
Median
$514,276

This home is -2.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,983 across all districts. With a homestead exemption claimed, that drops to $7,640 — saving $1,343 per year. That's $637 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%$4,459
Round RockCity0.3720%$1,857
Williamson CountyCounty0.3694%$1,844
Austin Community Collegespecial0.1034%$516
Williamson County FM/RdCounty0.0443%$221
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,983

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $537,266 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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