Beta Williamson County, TX only — data and coverage are limited during early access.

3900 DERBY CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,550 sqftBuilt 2004

Property at a Glance

This home is estimated between $432,833 and $769,237, with a best estimate of $498,437. 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

$432,833 $769,237
Best Estimate
$498,437
WCAD Value
$472,751
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 $432,833 and $769,237. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3904 DERBY CV, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,987 sqft Built 2003
Raw Value $554,938
Adjusted Value $433,378

Adjusted -$121,831 for 437 sqft less living space and +$271 for being newer. Net adjustment: -$121,560.

3901 DERBY CV, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,073 sqft Built 2006
Raw Value $632,276
Adjusted Value $764,717

Adjusted +$132,982 for 477 sqft more living space and -$541 for being older. Net adjustment: +$132,441.

3905 DERBY CV, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 3,154 sqft Built 2004
Raw Value $601,222
Adjusted Value $432,833

Adjusted -$168,389 for 604 sqft less living space. Net adjustment: -$168,389.

4001 CHANCERY CT, ROUND ROCK, TX 78681
0.13 mi 100% similar Same subdivision
4 bed 3 bath 2,143 sqft Built 2003
Raw Value $655,499
Adjusted Value $769,237

Adjusted +$113,467 for 407 sqft more living space and +$271 for being newer. Net adjustment: +$113,738.

4005 CHANCERY CT, ROUND ROCK, TX 78681
0.13 mi 100% similar Same subdivision
4 bed 2,443 sqft Built 2003
Raw Value $468,336
Adjusted Value $498,437

Adjusted +$29,830 for 107 sqft more living space and +$271 for being newer. Net adjustment: +$30,101.

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
$472,751
Median
$510,992

This home is -7.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,422 across all districts. With a homestead exemption claimed, that drops to $7,813 — 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%$5,138
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%$9,422

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $498,437 would pay approximately $3,111 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.

View full property details