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

8420 FERN BLUFF AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,933 sqftBuilt 1998

Property at a Glance

This home is estimated between $315,184 and $768,104, with a best estimate of $434,946. That places the property below the R292598D - Stone Canyon - Weekley & Newmark median of $523,036, in a neighborhood that declined 5.2% over the past year.

Estimated Value Range

$315,184 $768,104
Best Estimate
$434,946
WCAD Value
$436,613
High Confidence

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

Based on 5 comparable properties in R292598D - Stone Canyon - Weekley & Newmark, this home's estimated market value is between $315,184 and $768,104. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8205 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,775 sqft Built 1998
Raw Value $596,113
Adjusted Value $315,184

Adjusted -$280,929 for 842 sqft less living space. Net adjustment: -$280,929.

8344 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,846 sqft Built 1996
Raw Value $574,798
Adjusted Value $606,016

Adjusted +$29,027 for 87 sqft more living space and +$2,191 for being newer. Net adjustment: +$31,218.

8424 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,910 sqft Built 1996
Raw Value $425,081
Adjusted Value $434,946

Adjusted +$7,674 for 23 sqft more living space and +$2,191 for being newer. Net adjustment: +$9,865.

8401 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,303 sqft Built 1998
Raw Value $454,290
Adjusted Value $330,841

Adjusted -$123,449 for 370 sqft less living space. Net adjustment: -$123,449.

8302 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,634 sqft Built 1999
Raw Value $669,439
Adjusted Value $768,104

Adjusted +$99,760 for 299 sqft more living space and -$1,095 for being older. Net adjustment: +$98,665.

The Neighborhood

This home is valued 16.5% below the R292598D - Stone Canyon - Weekley & Newmark median of $523,036. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.2% over the past year.

R292598D - Stone Canyon - Weekley & Newmark

below average
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$436,613
Median
$523,036

This home is -16.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,454 across all districts. With a homestead exemption claimed, that drops to $6,123 — saving $1,331 per year. That's $510 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%$3,899
Williamson CountyCounty0.3694%$1,613
Fern Bluff MUDMUD0.1800%$786
Austin Community Collegespecial0.1034%$451
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$437
Williamson County FM/RdCounty0.0443%$194
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$7,454

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $434,946 would pay approximately $2,715 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