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4277 CR 123, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed1 bath1,484 sqftBuilt 1930

Property at a Glance

This home is estimated between $96,100 and $4,958,134, with a best estimate of $132,153. 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

$96,100 $4,958,134
Best Estimate
$132,153
WCAD Value
$275,851
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 $96,100 and $4,958,134 should be treated as a rough guide.

Comparable Properties (5)

2 bed 816 sqft Built 1929
Raw Value $4,647,594
Adjusted Value $4,958,134

Adjusted +$210,806 for 668 sqft more living space and +$2,640 for being newer and +$97,094 for having a garage. Net adjustment: +$310,540.

4356 CR 123, ROUND ROCK, TX 78664
0.00 mi 79% similar Same subdivision
3 bed 2,159 sqft Built 2021
Raw Value $585,415
Adjusted Value $132,153

Adjusted -$213,015 for 675 sqft less living space and -$240,247 for being older. Net adjustment: -$453,262.

2 bed 1 bath 1,329 sqft Built 1920
Raw Value $393,942
Adjusted Value $566,352

Adjusted +$48,915 for 155 sqft more living space and +$26,401 for being newer and +$97,094 for having a garage. Net adjustment: +$172,410.

3 bed 2 bath 1,494 sqft Built 2002
Raw Value $289,342
Adjusted Value $96,100

Adjusted -$3,156 for 10 sqft less living space and -$190,086 for being older. Net adjustment: -$193,242.

3 bed 2 bath 1,459 sqft Built 2000
Raw Value $299,405
Adjusted Value $122,488

Adjusted +$7,889 for 25 sqft more living space and -$184,806 for being older. Net adjustment: -$176,917.

The Neighborhood

This home is valued 57.2% 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

outlier low
1,074 Properties
$644,778 Median Value
+25.9% YoY Change
3% Have Pool
35% Have Garage
This Home
$275,851
Median
$644,778

This home is -57.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,901 across all districts. With a homestead exemption claimed, that drops to $3,163 — saving $1,738 per year. That's $264 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%$3,325
Williamson CountyCounty0.3694%$1,019
Williamson County ESD #9 - Round RockESD0.0999%$276
Williamson County FM/RdCounty0.0443%$122
EWC Higher Ed Centerspecial0.0409%$113
Upper Brushy Creek WCIDWater0.0170%$47
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7768%$4,901

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $132,153 would pay approximately $825 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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