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3986 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,299 sqftBuilt 2000

Property at a Glance

This home is estimated between $296,977 and $532,578, with a best estimate of $466,664. 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

$296,977 $532,578
Best Estimate
$466,664
WCAD Value
$486,176
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 $296,977 and $532,578. 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 $394,841

Adjusted -$108,720 for 380 sqft less living space and -$1,965 for being older. Net adjustment: -$110,685.

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 $466,664

Adjusted -$89,551 for 313 sqft less living space. Net adjustment: -$89,551.

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 $532,578

Adjusted +$28,325 for 99 sqft more living space and -$9,824 for being older. Net adjustment: +$18,501.

4006 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,306 sqft Built 2000
Raw Value $496,455
Adjusted Value $494,452

Adjusted -$2,003 for 7 sqft less living space. Net adjustment: -$2,003.

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 $296,977

Adjusted -$202,277 for 707 sqft less living space. Net adjustment: -$202,277.

The Neighborhood

This home is valued 5.5% 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
$486,176
Median
$514,276

This home is -5.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,748 across all districts. With a homestead exemption claimed, that drops to $7,408 — saving $1,340 per year. That's $617 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%$4,342
Round RockCity0.3720%$1,809
Williamson CountyCounty0.3694%$1,796
Austin Community Collegespecial0.1034%$503
Williamson County FM/RdCounty0.0443%$216
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,748

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $466,664 would pay approximately $2,913 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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