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3984 LORD BYRON CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,205 sqftBuilt 2001

Property at a Glance

This home is estimated between $457,557 and $507,649, with a best estimate of $476,855. 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

$457,557 $507,649
Best Estimate
$476,855
WCAD Value
$504,866
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 $457,557 and $507,649. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $507,649

Adjusted +$1,431 for 5 sqft more living space and -$7,859 for being older. Net adjustment: -$6,428.

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 $469,523

Adjusted -$28,897 for 101 sqft less living space and +$1,965 for being newer. Net adjustment: -$26,932.

3913 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,235 sqft Built 2000
Raw Value $464,175
Adjusted Value $457,557

Adjusted -$8,583 for 30 sqft less living space and +$1,965 for being newer. Net adjustment: -$6,618.

3987 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,116 sqft Built 2001
Raw Value $475,503
Adjusted Value $500,966

Adjusted +$25,463 for 89 sqft more living space. Net adjustment: +$25,463.

3908 LORD BYRON CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,207 sqft Built 1999
Raw Value $473,497
Adjusted Value $476,855

Adjusted -$572 for 2 sqft less living space and +$3,930 for being newer. Net adjustment: +$3,358.

The Neighborhood

This home is valued 1.8% 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
$504,866
Median
$514,276

This home is -1.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,084 across all districts. With a homestead exemption claimed, that drops to $7,740 — saving $1,344 per year. That's $645 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%$4,509
Round RockCity0.3720%$1,878
Williamson CountyCounty0.3694%$1,865
Austin Community Collegespecial0.1034%$522
Williamson County FM/RdCounty0.0443%$224
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,084

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $476,855 would pay approximately $2,977 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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