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

4021 MADISON CT, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,690 sqftBuilt 2005

Property at a Glance

This home is estimated between $571,614 and $835,038, with a best estimate of $812,675. 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

$571,614 $835,038
Best Estimate
$812,675
WCAD Value
$524,672
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 $571,614 and $835,038. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4017 MADISON CT, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,050 sqft Built 2005
Raw Value $634,250
Adjusted Value $812,675

Adjusted +$178,425 for 640 sqft more living space. Net adjustment: +$178,425.

4013 MADISON CT, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,370 sqft Built 2005
Raw Value $745,826
Adjusted Value $835,038

Adjusted +$89,212 for 320 sqft more living space. Net adjustment: +$89,212.

4009 MADISON CT, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,143 sqft Built 2005
Raw Value $624,497
Adjusted Value $776,995

Adjusted +$152,498 for 547 sqft more living space. Net adjustment: +$152,498.

4005 MADISON CT, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,724 sqft Built 2005
Raw Value $581,093
Adjusted Value $571,614

Adjusted -$9,479 for 34 sqft less living space. Net adjustment: -$9,479.

4008 MADISON CT, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
5 bed 4 bath 2,313 sqft Built 2005
Raw Value $718,370
Adjusted Value $823,473

Adjusted +$105,103 for 377 sqft more living space. Net adjustment: +$105,103.

The Neighborhood

This home is valued 2.7% 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
$524,672
Median
$510,992

This home is +2.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,457 across all districts. With a homestead exemption claimed, that drops to $8,839 — saving $1,618 per year. That's $737 per month a buyer should budget. The assessed value increased +3.1% vs the subdivision average of -5.8%. This above-average increase gives a protest opportunity score of 45 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$5,703
Round RockCity0.3720%$1,952
Williamson CountyCounty0.3694%$1,938
Austin Community Collegespecial0.1034%$543
Williamson County FM/RdCounty0.0443%$233
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$10,457
45 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $812,675 would pay approximately $5,073 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