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3843 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2,552 sqftBuilt 2003

Property at a Glance

This home is estimated between $432,227 and $647,721, with a best estimate of $524,282. 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

$432,227 $647,721
Best Estimate
$524,282
WCAD Value
$475,073
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 $432,227 and $647,721. More comparables in the same subdivision would strengthen this estimate.

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 $472,077

Adjusted -$66,073 for 237 sqft less living space. Net adjustment: -$66,073.

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 $574,578

Adjusted +$101,758 for 365 sqft more living space. Net adjustment: +$101,758.

3 bed 2 bath 2,473 sqft Built 2002
Raw Value $409,932
Adjusted Value $432,227

Adjusted +$22,024 for 79 sqft more living space and +$271 for being newer. Net adjustment: +$22,295.

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 $524,282

Adjusted +$37,358 for 134 sqft more living space and -$271 for being older. Net adjustment: +$37,087.

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 $647,721

Adjusted +$160,304 for 575 sqft more living space and -$271 for being older. Net adjustment: +$160,033.

The Neighborhood

This home is valued 7.0% 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
$475,073
Median
$510,992

This home is -7.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,469 across all districts. With a homestead exemption claimed, that drops to $7,859 — saving $1,610 per year. That's $655 per month a buyer should budget. The assessed value increased +0.6% vs the subdivision average of -5.8%. This above-average increase gives a protest opportunity score of 32 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$5,164
Round RockCity0.3720%$1,767
Williamson CountyCounty0.3694%$1,755
Austin Community Collegespecial0.1034%$491
Williamson County FM/RdCounty0.0443%$211
Upper Brushy Creek WCIDWater0.0170%$81
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$9,469
32 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $524,282 would pay approximately $3,273 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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