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

8420 PRIEST RIVER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2,106 sqftBuilt 1991

Property at a Glance

This home is estimated between $394,721 and $516,335, with a best estimate of $427,486. 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

$394,721 $516,335
Best Estimate
$427,486
WCAD Value
$430,295
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 $394,721 and $516,335. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

8501 PRIEST RIVER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,236 sqft Built 1989
Raw Value $442,840
Adjusted Value $394,721

Adjusted -$51,999 for 130 sqft less living space and +$3,880 for being newer. Net adjustment: -$48,119.

8425 PRIEST RIVER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,841 sqft Built 1992
Raw Value $388,447
Adjusted Value $492,505

Adjusted +$105,998 for 265 sqft more living space and -$1,940 for being older. Net adjustment: +$104,058.

8503 PRIEST RIVER DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,146 sqft Built 1990
Raw Value $428,340
Adjusted Value $414,280

Adjusted -$16,000 for 40 sqft less living space and +$1,940 for being newer. Net adjustment: -$14,060.

3 bed 2 bath 2,166 sqft Built 2000
Raw Value $468,944
Adjusted Value $427,486

Adjusted -$23,999 for 60 sqft less living space and -$17,459 for being older. Net adjustment: -$41,458.

3 bed 2 bath 1,861 sqft Built 2000
Raw Value $435,796
Adjusted Value $516,335

Adjusted +$97,998 for 245 sqft more living space and -$17,459 for being older. Net adjustment: +$80,539.

The Neighborhood

This home is valued 5.2% 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)

typical
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$430,295
Median
$453,749

This home is -5.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,346 across all districts. With a homestead exemption claimed, that drops to $6,016 — saving $1,330 per year. That's $501 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%$3,843
Williamson CountyCounty0.3694%$1,590
Fern Bluff MUDMUD0.1800%$775
Austin Community Collegespecial0.1034%$445
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$430
Williamson County FM/RdCounty0.0443%$191
Upper Brushy Creek WCIDWater0.0170%$73
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$7,346

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $427,486 would pay approximately $2,668 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