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

8500 TAD PARK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,834 sqftBuilt 1987

Property at a Glance

This home is estimated between $306,462 and $726,817, with a best estimate of $403,140. That places the property below the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749, in a neighborhood that declined 4.0% over the past year.

Estimated Value Range

$306,462 $726,817
Best Estimate
$403,140
WCAD Value
$381,989
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $306,462 and $726,817. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

8506 TAD PARK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,287 sqft Built 1987
Raw Value $495,317
Adjusted Value $714,112

Adjusted +$218,795 for 547 sqft more living space. Net adjustment: +$218,795.

8507 TAD PARK, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,820 sqft Built 1987
Raw Value $397,540
Adjusted Value $403,140

Adjusted +$5,600 for 14 sqft more living space. Net adjustment: +$5,600.

3 bed 2 bath 2,162 sqft Built 1986
Raw Value $492,237
Adjusted Value $362,980

Adjusted -$131,197 for 328 sqft less living space and +$1,940 for being newer. Net adjustment: -$129,257.

8505 TAD PARK, ROUND ROCK, TX 78681
0.00 mi 99% similar Same subdivision
3 bed 2 bath 990 sqft Built 1987
Raw Value $389,225
Adjusted Value $726,817

Adjusted +$337,592 for 844 sqft more living space. Net adjustment: +$337,592.

3 bed 2 bath 2,205 sqft Built 1984
Raw Value $449,039
Adjusted Value $306,462

Adjusted -$148,397 for 371 sqft less living space and +$5,820 for being newer. Net adjustment: -$142,577.

The Neighborhood

This home is valued 15.8% below the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.0% over the past year.

R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD)

below average
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$381,989
Median
$453,749

This home is -15.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,522 across all districts. With a homestead exemption claimed, that drops to $5,201 — saving $1,321 per year. That's $433 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%$3,412
Williamson CountyCounty0.3694%$1,411
Fern Bluff MUDMUD0.1800%$688
Austin Community Collegespecial0.1034%$395
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$382
Williamson County FM/RdCounty0.0443%$169
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$6,522

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $403,140 would pay approximately $2,516 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