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8320 COLUMBIA FALLS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath668 sqftBuilt 1989

Property at a Glance

This home is estimated between $220,043 and $370,265, with a best estimate of $305,505. 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

$220,043 $370,265
Best Estimate
$305,505
WCAD Value
$472,192
High Confidence

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

Based on 5 comparable properties in R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD), this home's estimated market value is between $220,043 and $370,265. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8413 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,060 sqft Built 1988
Raw Value $384,934
Adjusted Value $230,078

Adjusted -$156,796 for 392 sqft less living space and +$1,940 for being newer. Net adjustment: -$154,856.

8409 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,060 sqft Built 1987
Raw Value $372,959
Adjusted Value $220,043

Adjusted -$156,796 for 392 sqft less living space and +$3,880 for being newer. Net adjustment: -$152,916.

8420 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
3 bed 2 bath 834 sqft Built 1987
Raw Value $368,023
Adjusted Value $305,505

Adjusted -$66,398 for 166 sqft less living space and +$3,880 for being newer. Net adjustment: -$62,518.

8407 MOUNT SHASTA CV, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
3 bed 2 bath 554 sqft Built 1987
Raw Value $320,786
Adjusted Value $370,265

Adjusted +$45,599 for 114 sqft more living space and +$3,880 for being newer. Net adjustment: +$49,479.

8315 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
3 bed 2 bath 828 sqft Built 1991
Raw Value $420,481
Adjusted Value $352,602

Adjusted -$63,999 for 160 sqft less living space and -$3,880 for being older. Net adjustment: -$67,879.

The Neighborhood

This home is valued 4.1% above the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749. With 421 homes in the subdivision, the property sits in the upper tier. 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
$472,192
Median
$453,749

This home is +4.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,062 across all districts. With a homestead exemption claimed, that drops to $6,724 — saving $1,338 per year. That's $560 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%$4,217
Williamson CountyCounty0.3694%$1,744
Fern Bluff MUDMUD0.1800%$850
Austin Community Collegespecial0.1034%$488
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$472
Williamson County FM/RdCounty0.0443%$209
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,062

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $305,505 would pay approximately $1,907 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.

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