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COUNTY ROAD 123, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed1,754 sqftBuilt 2023

Property at a Glance

This home is estimated between $272,727 and $484,027, with a best estimate of $432,378. That places the property below the H005D86H - Hutto Abstracts median of $644,778, in a neighborhood that appreciated 25.9% over the past year.

Estimated Value Range

$272,727 $484,027
Best Estimate
$432,378
WCAD Value
$484,994
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in H005D86H - Hutto Abstracts. The estimated range of $272,727 and $484,027 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,779 sqft Built 2012
Raw Value $559,969
Adjusted Value $484,027

Adjusted -$7,889 for 25 sqft less living space and +$29,041 for being newer and -$97,094 for no garage. Net adjustment: -$75,942.

5 bed 3 bath 1,642 sqft Built 2025
Raw Value $499,407
Adjusted Value $432,378

Adjusted +$35,345 for 112 sqft more living space and -$5,280 for being older and -$97,094 for no garage. Net adjustment: -$67,029.

5 bed 3 bath 1,642 sqft Built 2025
Raw Value $500,285
Adjusted Value $433,256

Adjusted +$35,345 for 112 sqft more living space and -$5,280 for being older and -$97,094 for no garage. Net adjustment: -$67,029.

3 bed 2 bath 1,762 sqft Built 2006
Raw Value $327,465
Adjusted Value $272,727

Adjusted -$2,525 for 8 sqft less living space and +$44,881 for being newer and -$97,094 for no garage. Net adjustment: -$54,738.

3 bed 2 bath 1,727 sqft Built 2005
Raw Value $316,835
Adjusted Value $275,783

Adjusted +$8,521 for 27 sqft more living space and +$47,521 for being newer and -$97,094 for no garage. Net adjustment: -$41,052.

The Neighborhood

This home is valued 24.8% below the H005D86H - Hutto Abstracts median of $644,778. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 25.9% over the past year.

H005D86H - Hutto Abstracts

below average
1,074 Properties
$644,778 Median Value
+25.9% YoY Change
3% Have Pool
35% Have Garage
This Home
$484,994
Median
$644,778

This home is -24.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,617 across all districts. With a homestead exemption claimed, that drops to $6,840 — saving $1,777 per year. That's $570 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
Hutto ISDSchool1.2052%$5,845
Williamson CountyCounty0.3694%$1,792
Williamson County ESD #9 - Round RockESD0.0999%$485
Williamson County FM/RdCounty0.0443%$215
EWC Higher Ed Centerspecial0.0409%$198
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7768%$8,617

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $432,378 would pay approximately $2,699 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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