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3821 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,920 sqftBuilt 2005

Property at a Glance

This home is estimated between $296,423 and $683,061, with a best estimate of $472,068. That places the property below the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.

Estimated Value Range

$296,423 $683,061
Best Estimate
$472,068
WCAD Value
$592,680
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 $296,423 and $683,061. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3839 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,789 sqft Built 2003
Raw Value $538,150
Adjusted Value $296,423

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

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 $398,924

Adjusted -$74,437 for 267 sqft less living space and +$541 for being newer. Net adjustment: -$73,896.

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 $650,754

Adjusted +$69,697 for 250 sqft more living space. Net adjustment: +$69,697.

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 $472,068

Adjusted -$15,891 for 57 sqft less living space and +$271 for being newer. Net adjustment: -$15,620.

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 $683,061

Adjusted +$58,546 for 210 sqft more living space and +$271 for being newer. Net adjustment: +$58,817.

The Neighborhood

This home is valued 16.0% 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
$592,680
Median
$510,992

This home is +16.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,813 across all districts. With a homestead exemption claimed, that drops to $10,181 — saving $1,632 per year. That's $848 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%$6,442
Round RockCity0.3720%$2,205
Williamson CountyCounty0.3694%$2,190
Austin Community Collegespecial0.1034%$613
Williamson County FM/RdCounty0.0443%$263
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,813

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $472,068 would pay approximately $2,947 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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