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8321 COLUMBIA FALLS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed1,948 sqftBuilt 1992

Property at a Glance

This home is estimated between $525,407 and $601,639, with a best estimate of $563,002. That places the property above 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

$525,407 $601,639
Best Estimate
$563,002
WCAD Value
$398,537
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 $525,407 and $601,639. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8325 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,293 sqft Built 1991
Raw Value $337,705
Adjusted Value $601,639

Adjusted +$261,994 for 655 sqft more living space and +$1,940 for being newer. Net adjustment: +$263,934.

8318 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,436 sqft Built 1989
Raw Value $354,853
Adjusted Value $565,468

Adjusted +$204,795 for 512 sqft more living space and +$5,820 for being newer. Net adjustment: +$210,615.

8327 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,512 sqft Built 1988
Raw Value $380,847
Adjusted Value $563,002

Adjusted +$174,396 for 436 sqft more living space and +$7,759 for being newer. Net adjustment: +$182,155.

8322 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,436 sqft Built 1989
Raw Value $344,194
Adjusted Value $554,809

Adjusted +$204,795 for 512 sqft more living space and +$5,820 for being newer. Net adjustment: +$210,615.

8400 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
3 bed 2 bath 1,511 sqft Built 1989
Raw Value $344,791
Adjusted Value $525,407

Adjusted +$174,796 for 437 sqft more living space and +$5,820 for being newer. Net adjustment: +$180,616.

The Neighborhood

This home is valued 12.2% 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
$398,537
Median
$453,749

This home is -12.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,804 across all districts. With a homestead exemption claimed, that drops to $5,480 — saving $1,324 per year. That's $457 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%$3,559
Williamson CountyCounty0.3694%$1,472
Fern Bluff MUDMUD0.1800%$717
Austin Community Collegespecial0.1034%$412
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$399
Williamson County FM/RdCounty0.0443%$177
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$6,804

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $563,002 would pay approximately $3,514 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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