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

3819 TAILFEATHER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,642 sqftBuilt 1998

Property at a Glance

This home is estimated between $303,694 and $507,706, with a best estimate of $503,429. That places the property above the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.

Estimated Value Range

$303,694 $507,706
Best Estimate
$503,429
WCAD Value
$310,080
High Confidence

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

Based on 5 comparable properties in R107503F - PRESERVE AT STONE OAK - PH 3 & 4, this home's estimated market value is between $303,694 and $507,706. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3818 TAILFEATHER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,797 sqft Built 1998
Raw Value $335,248
Adjusted Value $303,694

Adjusted -$31,554 for 155 sqft less living space. Net adjustment: -$31,554.

3801 TAILFEATHER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,425 sqft Built 1998
Raw Value $459,254
Adjusted Value $503,429

Adjusted +$44,175 for 217 sqft more living space. Net adjustment: +$44,175.

3813 TAILFEATHER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,210 sqft Built 1998
Raw Value $416,075
Adjusted Value $504,019

Adjusted +$87,944 for 432 sqft more living space. Net adjustment: +$87,944.

3821 TAILFEATHER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,421 sqft Built 1998
Raw Value $452,714
Adjusted Value $497,704

Adjusted +$44,990 for 221 sqft more living space. Net adjustment: +$44,990.

3823 TAILFEATHER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,210 sqft Built 1998
Raw Value $419,762
Adjusted Value $507,706

Adjusted +$87,944 for 432 sqft more living space. Net adjustment: +$87,944.

The Neighborhood

This home is valued 15.8% below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 10.9% over the past year.

R107503F - PRESERVE AT STONE OAK - PH 3 & 4

below average
1,045 Properties
$368,194 Median Value
-10.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$310,080
Median
$368,194

This home is -15.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,579 across all districts. With a homestead exemption claimed, that drops to $4,272 — saving $1,307 per year. That's $356 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
Round Rock ISDSchool0.8931%$2,769
Round RockCity0.3720%$1,153
Williamson CountyCounty0.3694%$1,146
Austin Community Collegespecial0.1034%$321
Williamson County FM/RdCounty0.0443%$137
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,579

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $503,429 would pay approximately $3,142 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