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3721 DERBY TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,558 sqftBuilt 2010

Property at a Glance

This home is estimated between $478,580 and $583,492, with a best estimate of $494,746. 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

$478,580 $583,492
Best Estimate
$494,746
WCAD Value
$554,296
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 $478,580 and $583,492. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

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 $551,186

Adjusted -$31,224 for 112 sqft less living space and +$1,353 for being newer. Net adjustment: -$29,871.

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 $493,111

Adjusted -$100,922 for 362 sqft less living space and +$1,353 for being newer. Net adjustment: -$99,569.

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 $583,492

Adjusted -$42,376 for 152 sqft less living space and +$1,624 for being newer. Net adjustment: -$40,752.

3812 DERBY TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,072 sqft Built 2007
Raw Value $637,232
Adjusted Value $494,746

Adjusted -$143,298 for 514 sqft less living space and +$812 for being newer. Net adjustment: -$142,486.

4 bed 3 bath 1,350 sqft Built 2002
Raw Value $418,426
Adjusted Value $478,580

Adjusted +$57,988 for 208 sqft more living space and +$2,166 for being newer. Net adjustment: +$60,154.

The Neighborhood

This home is valued 8.5% 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

typical
696 Properties
$510,992 Median Value
-5.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$554,296
Median
$510,992

This home is +8.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,048 across all districts. With a homestead exemption claimed, that drops to $9,423 — saving $1,625 per year. That's $785 per month a buyer should budget. The assessed value increased +7.0% vs the subdivision average of -5.8%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$6,025
Round RockCity0.3720%$2,062
Williamson CountyCounty0.3694%$2,048
Austin Community Collegespecial0.1034%$573
Williamson County FM/RdCounty0.0443%$246
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,048
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $494,746 would pay approximately $3,088 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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