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8516 COLUMBIA FALLS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,404 sqftBuilt 1988

Property at a Glance

This home is estimated between $230,679 and $639,698, with a best estimate of $542,289. 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

$230,679 $639,698
Best Estimate
$542,289
WCAD Value
$551,013
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 $230,679 and $639,698. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8518 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,348 sqft Built 1991
Raw Value $525,710
Adjusted Value $542,289

Adjusted +$22,399 for 56 sqft more living space and -$5,820 for being older. Net adjustment: +$16,579.

8514 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 996 sqft Built 1991
Raw Value $474,039
Adjusted Value $631,415

Adjusted +$163,196 for 408 sqft more living space and -$5,820 for being older. Net adjustment: +$157,376.

8520 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,371 sqft Built 1988
Raw Value $463,824
Adjusted Value $477,024

Adjusted +$13,200 for 33 sqft more living space. Net adjustment: +$13,200.

8512 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 996 sqft Built 1991
Raw Value $482,322
Adjusted Value $639,698

Adjusted +$163,196 for 408 sqft more living space and -$5,820 for being older. Net adjustment: +$157,376.

8519 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,754 sqft Built 1992
Raw Value $378,435
Adjusted Value $230,679

Adjusted -$139,997 for 350 sqft less living space and -$7,759 for being older. Net adjustment: -$147,756.

The Neighborhood

This home is valued 21.4% 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)

above average
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$551,013
Median
$453,749

This home is +21.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,407 across all districts. With a homestead exemption claimed, that drops to $8,055 — saving $1,352 per year. That's $671 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%$4,921
Williamson CountyCounty0.3694%$2,036
Fern Bluff MUDMUD0.1800%$992
Austin Community Collegespecial0.1034%$570
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$551
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$9,407

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $542,289 would pay approximately $3,385 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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