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4100 TWILIGHT CV, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed1,778 sqftBuilt 2005

Property at a Glance

This home is estimated between $382,611 and $837,289, with a best estimate of $642,568. 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

$382,611 $837,289
Best Estimate
$642,568
WCAD Value
$566,597
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in L498506D - VILLAGE AT MAYFIELD. The estimated range of $382,611 and $837,289 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,858 sqft Built 2004
Raw Value $859,321
Adjusted Value $837,289

Adjusted -$22,303 for 80 sqft less living space and +$271 for being newer. Net adjustment: -$22,032.

4 bed 2 bath 1,790 sqft Built 1999
Raw Value $644,289
Adjusted Value $642,568

Adjusted -$3,345 for 12 sqft less living space and +$1,624 for being newer. Net adjustment: -$1,721.

4 bed 2 bath 1,807 sqft Built 2018
Raw Value $530,543
Adjusted Value $518,939

Adjusted -$8,085 for 29 sqft less living space and -$3,519 for being older. Net adjustment: -$11,604.

4 bed 3 bath 2,007 sqft Built 2011
Raw Value $740,222
Adjusted Value $674,755

Adjusted -$63,843 for 229 sqft less living space and -$1,624 for being older. Net adjustment: -$65,467.

3 bed 2 bath 1,788 sqft Built 1998
Raw Value $383,504
Adjusted Value $382,611

Adjusted -$2,788 for 10 sqft less living space and +$1,895 for being newer. Net adjustment: -$893.

The Neighborhood

This home is valued 10.9% 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
$566,597
Median
$510,992

This home is +10.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,293 across all districts. With a homestead exemption claimed, that drops to $9,666 — saving $1,627 per year. That's $806 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%$6,158
Round RockCity0.3720%$2,108
Williamson CountyCounty0.3694%$2,093
Austin Community Collegespecial0.1034%$586
Williamson County FM/RdCounty0.0443%$251
Upper Brushy Creek WCIDWater0.0170%$96
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$11,293

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $642,568 would pay approximately $4,011 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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