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3969 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath1,616 sqftBuilt 2001

Property at a Glance

This home is estimated between $427,649 and $625,238, with a best estimate of $559,324. 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

$427,649 $625,238
Best Estimate
$559,324
WCAD Value
$552,459
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 $427,649 and $625,238. 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 $487,501

Adjusted -$18,025 for 63 sqft less living space. Net adjustment: -$18,025.

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 $427,649

Adjusted -$120,165 for 420 sqft less living space and +$1,965 for being newer. Net adjustment: -$118,200.

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 $559,324

Adjusted +$1,144 for 4 sqft more living space and +$1,965 for being newer. Net adjustment: +$3,109.

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 $625,238

Adjusted +$119,020 for 416 sqft more living space and -$7,859 for being older. Net adjustment: +$111,161.

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 $587,113

Adjusted +$88,693 for 310 sqft more living space and +$1,965 for being newer. Net adjustment: +$90,658.

The Neighborhood

This home is valued 7.4% above the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. With 274 homes in the subdivision, the property sits in the upper tier. 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
$552,459
Median
$514,276

This home is +7.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,940 across all districts. With a homestead exemption claimed, that drops to $8,588 — saving $1,352 per year. That's $716 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%$4,934
Round RockCity0.3720%$2,055
Williamson CountyCounty0.3694%$2,041
Austin Community Collegespecial0.1034%$571
Williamson County FM/RdCounty0.0443%$245
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,940

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $559,324 would pay approximately $3,491 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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