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8513 COLUMBIA FALLS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,114 sqftBuilt 1987

Property at a Glance

This home is estimated between $80,828 and $521,762, with a best estimate of $513,479. 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

$80,828 $521,762
Best Estimate
$513,479
WCAD Value
$527,796
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 $80,828 and $521,762. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8515 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 916 sqft Built 1991
Raw Value $448,195
Adjusted Value $519,634

Adjusted +$79,198 for 198 sqft more living space and -$7,759 for being older. Net adjustment: +$71,439.

8509 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,894 sqft Built 1988
Raw Value $394,761
Adjusted Value $80,828

Adjusted -$311,993 for 780 sqft less living space and -$1,940 for being older. Net adjustment: -$313,933.

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 $521,762

Adjusted +$47,199 for 118 sqft more living space and -$7,759 for being older. Net adjustment: +$39,440.

8514 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 996 sqft Built 1991
Raw Value $474,039
Adjusted Value $513,479

Adjusted +$47,199 for 118 sqft more living space and -$7,759 for being older. Net adjustment: +$39,440.

8516 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,404 sqft Built 1988
Raw Value $551,013
Adjusted Value $433,076

Adjusted -$115,997 for 290 sqft less living space and -$1,940 for being older. Net adjustment: -$117,937.

The Neighborhood

This home is valued 16.3% 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
$527,796
Median
$453,749

This home is +16.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,011 across all districts. With a homestead exemption claimed, that drops to $7,663 — saving $1,348 per year. That's $639 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%$4,714
Williamson CountyCounty0.3694%$1,950
Fern Bluff MUDMUD0.1800%$950
Austin Community Collegespecial0.1034%$546
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$528
Williamson County FM/RdCounty0.0443%$234
Upper Brushy Creek WCIDWater0.0170%$90
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$9,011

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $513,479 would pay approximately $3,205 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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