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4356 CR 123, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2,159 sqftBuilt 2021

Property at a Glance

This home is estimated between $429,278 and $811,821, with a best estimate of $719,431. 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

$429,278 $811,821
Best Estimate
$719,431
WCAD Value
$585,415
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in H005D86H - Hutto Abstracts. The estimated range of $429,278 and $811,821 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,174 sqft Built 2013
Raw Value $753,110
Adjusted Value $769,497

Adjusted -$4,734 for 15 sqft less living space and +$21,121 for being newer. Net adjustment: +$16,387.

4233 CR 123, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
3 bed 5,635 sqft Built 2023
Raw Value $1,531,506
Adjusted Value $429,278

Adjusted -$1,096,948 for 3,476 sqft less living space and -$5,280 for being older. Net adjustment: -$1,102,228.

4260 CR 123, ROUND ROCK, TX 78664
0.00 mi 88% similar Same subdivision
4 bed 2 bath 2,074 sqft Built 1977
Raw Value $571,739
Adjusted Value $811,821

Adjusted +$26,824 for 85 sqft more living space and +$116,164 for being newer and +$97,094 for having a garage. Net adjustment: +$240,082.

4 bed 2 bath 1,704 sqft Built 2012
Raw Value $552,082
Adjusted Value $719,431

Adjusted +$143,588 for 455 sqft more living space and +$23,761 for being newer. Net adjustment: +$167,349.

3 bed 2 bath 1,526 sqft Built 2002
Raw Value $291,474
Adjusted Value $541,397

Adjusted +$199,761 for 633 sqft more living space and +$50,162 for being newer. Net adjustment: +$249,923.

The Neighborhood

This home is valued 9.2% 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

typical
1,074 Properties
$644,778 Median Value
+25.9% YoY Change
3% Have Pool
35% Have Garage
This Home
$585,415
Median
$644,778

This home is -9.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,401 across all districts. With a homestead exemption claimed, that drops to $8,606 — saving $1,795 per year. That's $717 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%$7,055
Williamson CountyCounty0.3694%$2,163
Williamson County ESD #9 - Round RockESD0.0999%$585
Williamson County FM/RdCounty0.0443%$260
EWC Higher Ed Centerspecial0.0409%$239
Upper Brushy Creek WCIDWater0.0170%$100
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7768%$10,401

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $719,431 would pay approximately $4,491 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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