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3915 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,758 sqftBuilt 2000

Property at a Glance

This home is estimated between $232,022 and $597,987, with a best estimate of $466,311. 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

$232,022 $597,987
Best Estimate
$466,311
WCAD Value
$566,446
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 $232,022 and $597,987. 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 $526,163

Adjusted +$22,602 for 79 sqft more living space and -$1,965 for being older. Net adjustment: +$20,637.

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 $466,311

Adjusted -$79,538 for 278 sqft less living space. Net adjustment: -$79,538.

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 $232,022

Adjusted -$290,970 for 1,017 sqft less living space. Net adjustment: -$290,970.

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 $597,987

Adjusted +$41,772 for 146 sqft more living space. Net adjustment: +$41,772.

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 $278,552

Adjusted -$176,241 for 616 sqft less living space and -$3,930 for being older. Net adjustment: -$180,171.

The Neighborhood

This home is valued 10.1% 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
$566,446
Median
$514,276

This home is +10.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,192 across all districts. With a homestead exemption claimed, that drops to $8,837 — saving $1,355 per year. That's $736 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%$5,059
Round RockCity0.3720%$2,107
Williamson CountyCounty0.3694%$2,093
Austin Community Collegespecial0.1034%$586
Williamson County FM/RdCounty0.0443%$251
Upper Brushy Creek WCIDWater0.0170%$96
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,192

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $466,311 would pay approximately $2,911 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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