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3829 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,583 sqftBuilt 2010

Property at a Glance

This home is estimated between $500,081 and $590,462, with a best estimate of $558,155. 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

$500,081 $590,462
Best Estimate
$558,155
WCAD Value
$567,476
High Confidence

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

Based on 5 comparable properties in L498506D - VILLAGE AT MAYFIELD, this home's estimated market value is between $500,081 and $590,462. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3608 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,670 sqft Built 2005
Raw Value $581,057
Adjusted Value $558,155

Adjusted -$24,255 for 87 sqft less living space and +$1,353 for being newer. Net adjustment: -$22,902.

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 $500,081

Adjusted -$93,952 for 337 sqft less living space and +$1,353 for being newer. Net adjustment: -$92,599.

3724 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,710 sqft Built 2004
Raw Value $624,244
Adjusted Value $590,462

Adjusted -$35,406 for 127 sqft less living space and +$1,624 for being newer. Net adjustment: -$33,782.

3812 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,072 sqft Built 2007
Raw Value $637,232
Adjusted Value $501,716

Adjusted -$136,328 for 489 sqft less living space and +$812 for being newer. Net adjustment: -$135,516.

3721 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,558 sqft Built 2010
Raw Value $554,296
Adjusted Value $561,266

Adjusted +$6,970 for 25 sqft more living space. Net adjustment: +$6,970.

The Neighborhood

This home is valued 11.1% 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
$567,476
Median
$510,992

This home is +11.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,310 across all districts. With a homestead exemption claimed, that drops to $9,684 — saving $1,626 per year. That's $807 per month a buyer should budget. The assessed value increased +2.1% vs the subdivision average of -5.8%. This above-average increase gives a protest opportunity score of 40 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$6,168
Round RockCity0.3720%$2,111
Williamson CountyCounty0.3694%$2,097
Austin Community Collegespecial0.1034%$587
Williamson County FM/RdCounty0.0443%$252
Upper Brushy Creek WCIDWater0.0170%$96
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,310
40 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $558,155 would pay approximately $3,484 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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