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425/427 LAKE CREEK CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed4 bath2,234 sqftBuilt 1978

Property at a Glance

This home is estimated between $398,026 and $457,094, with a best estimate of $427,872. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$398,026 $457,094
Best Estimate
$427,872
WCAD Value
$388,036
High Confidence

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

Based on 5 comparable properties in R450X - Round Rock East - Duplex, this home's estimated market value is between $398,026 and $457,094. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

300 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,208 sqft Built 1978
Raw Value $361,168
Adjusted Value $408,007

Adjusted +$5,052 for 26 sqft more living space and +$41,787 for having a garage. Net adjustment: +$46,839.

413/415 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,041 sqft Built 1975
Raw Value $357,523
Adjusted Value $398,026

Adjusted +$37,502 for 193 sqft more living space and +$3,001 for being newer. Net adjustment: +$40,503.

310 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,768 sqft Built 1978
Raw Value $324,757
Adjusted Value $457,094

Adjusted +$90,550 for 466 sqft more living space and +$41,787 for having a garage. Net adjustment: +$132,337.

304 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,750 sqft Built 1978
Raw Value $318,395
Adjusted Value $454,229

Adjusted +$94,047 for 484 sqft more living space and +$41,787 for having a garage. Net adjustment: +$135,834.

320/322 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,692 sqft Built 1978
Raw Value $322,555
Adjusted Value $427,872

Adjusted +$105,317 for 542 sqft more living space. Net adjustment: +$105,317.

The Neighborhood

This home is valued 9.2% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$388,036
Median
$355,449

This home is +9.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,982 across all districts. With a homestead exemption claimed, that drops to $5,660 — saving $1,322 per year. That's $472 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%$3,466
Round RockCity0.3720%$1,443
Williamson CountyCounty0.3694%$1,434
Austin Community Collegespecial0.1034%$401
Williamson County FM/RdCounty0.0443%$172
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,982

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $427,872 would pay approximately $2,671 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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