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3800 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,187 sqftBuilt 2003

Property at a Glance

This home is estimated between $330,469 and $724,650, with a best estimate of $545,963. 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

$330,469 $724,650
Best Estimate
$545,963
WCAD Value
$472,820
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $330,469 and $724,650. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 2,473 sqft Built 2002
Raw Value $409,932
Adjusted Value $330,469

Adjusted -$79,734 for 286 sqft less living space and +$271 for being newer. Net adjustment: -$79,463.

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 $724,650

Adjusted +$144,134 for 517 sqft more living space and -$541 for being older. Net adjustment: +$143,593.

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 $422,524

Adjusted -$64,400 for 231 sqft less living space and -$271 for being older. Net adjustment: -$64,671.

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 $545,963

Adjusted +$58,546 for 210 sqft more living space and -$271 for being older. Net adjustment: +$58,275.

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 $666,576

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

The Neighborhood

This home is valued 7.5% below the L498506D - VILLAGE AT MAYFIELD median of $510,992. That positions it competitively for buyers comparing within the neighborhood. 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
$472,820
Median
$510,992

This home is -7.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,424 across all districts. With a homestead exemption claimed, that drops to $7,815 — saving $1,609 per year. That's $651 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%$5,139
Round RockCity0.3720%$1,759
Williamson CountyCounty0.3694%$1,747
Austin Community Collegespecial0.1034%$489
Williamson County FM/RdCounty0.0443%$210
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$9,424

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $545,963 would pay approximately $3,408 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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