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

8400 FERN BLUFF AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,645 sqftBuilt 1997

Property at a Glance

This home is estimated between $217,999 and $670,918, with a best estimate of $337,760. 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

$217,999 $670,918
Best Estimate
$337,760
WCAD Value
$402,646
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 $217,999 and $670,918. 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 $217,999

Adjusted -$377,019 for 1,130 sqft less living space and -$1,095 for being older. Net adjustment: -$378,114.

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 $508,830

Adjusted -$67,063 for 201 sqft less living space and +$1,095 for being newer. Net adjustment: -$65,968.

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 $337,760

Adjusted -$88,416 for 265 sqft less living space and +$1,095 for being newer. Net adjustment: -$87,321.

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 $233,657

Adjusted -$219,538 for 658 sqft less living space and -$1,095 for being older. Net adjustment: -$220,633.

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 $670,918

Adjusted +$3,670 for 11 sqft more living space and -$2,191 for being older. Net adjustment: +$1,479.

The Neighborhood

This home is valued 23.0% 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
$402,646
Median
$523,036

This home is -23.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,874 across all districts. With a homestead exemption claimed, that drops to $5,550 — saving $1,324 per year. That's $463 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%$3,596
Williamson CountyCounty0.3694%$1,488
Fern Bluff MUDMUD0.1800%$725
Austin Community Collegespecial0.1034%$416
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$403
Williamson County FM/RdCounty0.0443%$178
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$6,874

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $337,760 would pay approximately $2,108 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