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4233 CR 123, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed5,635 sqftBuilt 2023

Property at a Glance

This home is estimated between $1,643,624 and $1,871,725, with a best estimate of $1,687,643. That places the property above the H005D86H - Hutto Abstracts median of $644,778, in a neighborhood that appreciated 25.9% over the past year.

Estimated Value Range

$1,643,624 $1,871,725
Best Estimate
$1,687,643
WCAD Value
$1,531,506
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in H005D86H - Hutto Abstracts. The estimated range of $1,643,624 and $1,871,725 should be treated as a rough guide.

Comparable Properties (5)

4356 CR 123, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
3 bed 2,159 sqft Built 2021
Raw Value $585,415
Adjusted Value $1,687,643

Adjusted +$1,096,948 for 3,476 sqft more living space and +$5,280 for being newer. Net adjustment: +$1,102,228.

4 bed 3 bath 2,174 sqft Built 2013
Raw Value $753,110
Adjusted Value $1,871,725

Adjusted +$1,092,214 for 3,461 sqft more living space and +$26,401 for being newer. Net adjustment: +$1,118,615.

4 bed 2 bath 1,704 sqft Built 2012
Raw Value $552,082
Adjusted Value $1,821,659

Adjusted +$1,240,536 for 3,931 sqft more living space and +$29,041 for being newer. Net adjustment: +$1,269,577.

3 bed 2 bath 1,526 sqft Built 2002
Raw Value $291,474
Adjusted Value $1,643,624

Adjusted +$1,296,708 for 4,109 sqft more living space and +$55,442 for being newer. Net adjustment: +$1,352,150.

3 bed 2 bath 1,494 sqft Built 2002
Raw Value $289,342
Adjusted Value $1,651,591

Adjusted +$1,306,807 for 4,141 sqft more living space and +$55,442 for being newer. Net adjustment: +$1,362,249.

The Neighborhood

This home is valued 137.5% above the H005D86H - Hutto Abstracts median of $644,778. With 1,074 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 25.9% over the past year.

H005D86H - Hutto Abstracts

outlier high
1,074 Properties
$644,778 Median Value
+25.9% YoY Change
3% Have Pool
35% Have Garage
This Home
$1,531,506
Median
$644,778

This home is +137.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,265 across all districts. With a homestead exemption claimed, that drops to $12,429 — saving $1,836 per year. That's $1,036 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%$9,676
Williamson CountyCounty0.3694%$2,966
Williamson County ESD #9 - Round RockESD0.0999%$802
Williamson County FM/RdCounty0.0443%$356
EWC Higher Ed Centerspecial0.0409%$328
Upper Brushy Creek WCIDWater0.0170%$136
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7768%$14,265

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,687,643 would pay approximately $10,534 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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