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3963 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath3,012 sqftBuilt 2000

Property at a Glance

This home is estimated between $550,269 and $845,043, with a best estimate of $590,799. 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

$550,269 $845,043
Best Estimate
$590,799
WCAD Value
$513,768
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 $550,269 and $845,043. 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 $825,089

Adjusted +$279,240 for 976 sqft more living space. Net adjustment: +$279,240.

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 $590,799

Adjusted +$67,807 for 237 sqft more living space. Net adjustment: +$67,807.

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 $550,269

Adjusted +$43,202 for 151 sqft more living space and -$1,965 for being older. Net adjustment: +$41,237.

3946 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,787 sqft Built 2001
Raw Value $505,993
Adjusted Value $568,402

Adjusted +$64,374 for 225 sqft more living space and -$1,965 for being older. Net adjustment: +$62,409.

3982 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,013 sqft Built 2000
Raw Value $559,223
Adjusted Value $845,043

Adjusted +$285,820 for 999 sqft more living space. Net adjustment: +$285,820.

The Neighborhood

This home is in line with the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. 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
$513,768
Median
$514,276

This home is -0.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,244 across all districts. With a homestead exemption claimed, that drops to $7,899 — saving $1,345 per year. That's $658 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%$4,588
Round RockCity0.3720%$1,911
Williamson CountyCounty0.3694%$1,898
Austin Community Collegespecial0.1034%$531
Williamson County FM/RdCounty0.0443%$228
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,244

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $590,799 would pay approximately $3,688 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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