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3812 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,072 sqftBuilt 2007

Property at a Glance

This home is estimated between $391,546 and $693,671, with a best estimate of $514,985. 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

$391,546 $693,671
Best Estimate
$514,985
WCAD Value
$637,232
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 $391,546 and $693,671. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3800 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,187 sqft Built 2003
Raw Value $472,820
Adjusted Value $441,842

Adjusted -$32,061 for 115 sqft less living space and +$1,083 for being newer. Net adjustment: -$30,978.

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 $693,671

Adjusted +$112,073 for 402 sqft more living space and +$541 for being newer. Net adjustment: +$112,614.

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 $391,546

Adjusted -$96,461 for 346 sqft less living space and +$812 for being newer. Net adjustment: -$95,649.

3748 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,977 sqft Built 2004
Raw Value $487,688
Adjusted Value $514,985

Adjusted +$26,485 for 95 sqft more living space and +$812 for being newer. Net adjustment: +$27,297.

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 $635,597

Adjusted +$42,376 for 152 sqft more living space and +$541 for being newer. Net adjustment: +$42,917.

The Neighborhood

This home is valued 24.7% 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

above average
696 Properties
$510,992 Median Value
-5.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$637,232
Median
$510,992

This home is +24.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,701 across all districts. With a homestead exemption claimed, that drops to $11,061 — saving $1,640 per year. That's $922 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
Leander ISDSchool1.0869%$6,926
Round RockCity0.3720%$2,371
Williamson CountyCounty0.3694%$2,354
Austin Community Collegespecial0.1034%$659
Williamson County FM/RdCounty0.0443%$282
Upper Brushy Creek WCIDWater0.0170%$108
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$12,701

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $514,985 would pay approximately $3,215 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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