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109 FANNIN AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,330 sqftBuilt 1900

Property at a Glance

This home is estimated between $-9,049 and $683,142, with a best estimate of $146,633. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$-9,049 $683,142
Best Estimate
$146,633
WCAD Value
$316,082
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $-9,049 and $683,142. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 1,360 sqft Built 1910
Raw Value $721,768
Adjusted Value $683,142

Adjusted -$7,703 for 30 sqft less living space and -$30,923 for being older. Net adjustment: -$38,626.

801 BAKER, ROUND ROCK, TX 78664
0.00 mi 73% similar Same subdivision
3 bed 2 bath 672 sqft Built 1980
Raw Value $236,998
Adjusted Value $67,758

Adjusted +$168,949 for 658 sqft more living space and -$247,387 for being older and -$90,802 for no pool. Net adjustment: -$169,240.

107 ANDERSON AVE E, ROUND ROCK, TX 78664
0.00 mi 72% similar Same subdivision
2 bed 1 bath 999 sqft Built 1960
Raw Value $417,941
Adjusted Value $317,389

Adjusted +$84,988 for 331 sqft more living space and -$185,540 for being older. Net adjustment: -$100,552.

809 LIBERTY AVE E, ROUND ROCK, TX 78664
0.00 mi 69% similar Same subdivision
3 bed 2 bath 2,923 sqft Built 1962
Raw Value $716,116
Adjusted Value $-9,049

Adjusted -$409,020 for 1,593 sqft less living space and -$191,725 for being older and -$124,420 for no garage. Net adjustment: -$725,165.

3 bed 2 bath 1,275 sqft Built 1954
Raw Value $299,497
Adjusted Value $146,633

Adjusted +$14,122 for 55 sqft more living space and -$166,986 for being older. Net adjustment: -$152,864.

The Neighborhood

This home is in line with the R701575F - OLD TOWN ROUND ROCK median of $319,256. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

typical
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$316,082
Median
$319,256

This home is -1.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $2,269 across all districts. With a homestead exemption claimed, that drops to $1,120 — saving $1,149 per year. That's $93 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%$1,126
Round RockCity0.3720%$469
Williamson CountyCounty0.3694%$466
Austin Community Collegespecial0.1034%$130
Williamson County FM/RdCounty0.0443%$56
Upper Brushy Creek WCIDWater0.0170%$21
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$2,269

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $146,633 would pay approximately $915 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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