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3839 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,789 sqftBuilt 2003

Property at a Glance

This home is estimated between $590,355 and $1,164,716, with a best estimate of $836,041. That places the property above the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.

Estimated Value Range

$590,355 $1,164,716
Best Estimate
$836,041
WCAD Value
$538,150
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $590,355 and $1,164,716. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 2,684 sqft Built 2008
Raw Value $1,080,042
Adjusted Value $1,107,962

Adjusted +$29,273 for 105 sqft more living space and -$1,353 for being older. Net adjustment: +$27,920.

3624 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,418 sqft Built 2004
Raw Value $487,195
Adjusted Value $590,355

Adjusted +$103,431 for 371 sqft more living space and -$271 for being older. Net adjustment: +$103,160.

3821 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,920 sqft Built 2005
Raw Value $592,680
Adjusted Value $834,407

Adjusted +$242,268 for 869 sqft more living space and -$541 for being older. Net adjustment: +$241,727.

4 bed 3 bath 2,586 sqft Built 2008
Raw Value $1,109,475
Adjusted Value $1,164,716

Adjusted +$56,594 for 203 sqft more living space and -$1,353 for being older. Net adjustment: +$55,241.

3812 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
4 bed 2 bath 2,072 sqft Built 2007
Raw Value $637,232
Adjusted Value $836,041

Adjusted +$199,892 for 717 sqft more living space and -$1,083 for being older. Net adjustment: +$198,809.

The Neighborhood

This home is valued 5.3% above the L498506D - VILLAGE AT MAYFIELD median of $510,992. With 696 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.8% over the past year.

L498506D - VILLAGE AT MAYFIELD

typical
696 Properties
$510,992 Median Value
-5.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$538,150
Median
$510,992

This home is +5.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,726 across all districts. With a homestead exemption claimed, that drops to $9,105 — saving $1,621 per year. That's $759 per month a buyer should budget. The assessed value increased +7.0% vs the subdivision average of -5.8%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$5,849
Round RockCity0.3720%$2,002
Williamson CountyCounty0.3694%$1,988
Austin Community Collegespecial0.1034%$556
Williamson County FM/RdCounty0.0443%$239
Upper Brushy Creek WCIDWater0.0170%$91
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$10,726
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $836,041 would pay approximately $5,219 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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