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320/322 LAKE CREEK CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,692 sqftBuilt 1978

Property at a Glance

This home is estimated between $292,709 and $357,274, with a best estimate of $348,912. That places the property below the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$292,709 $357,274
Best Estimate
$348,912
WCAD Value
$322,555
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $292,709 and $357,274. More comparables in the same subdivision would strengthen this estimate.

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 $302,690

Adjusted -$100,265 for 516 sqft less living space and +$41,787 for having a garage. Net adjustment: -$58,478.

310 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,768 sqft Built 1978
Raw Value $324,757
Adjusted Value $351,776

Adjusted -$14,768 for 76 sqft less living space and +$41,787 for having a garage. Net adjustment: +$27,019.

304 LAKE CREEK CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,750 sqft Built 1978
Raw Value $318,395
Adjusted Value $348,912

Adjusted -$11,270 for 58 sqft less living space and +$41,787 for having a garage. Net adjustment: +$30,517.

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 $292,709

Adjusted -$67,815 for 349 sqft less living space and +$3,001 for being newer. Net adjustment: -$64,814.

3 bed 2 bath 1,286 sqft Built 1979
Raw Value $279,383
Adjusted Value $357,274

Adjusted +$78,891 for 406 sqft more living space and -$1,000 for being older. Net adjustment: +$77,891.

The Neighborhood

This home is valued 9.3% below the R450X - Round Rock East - Duplex median of $355,449. That positions it competitively for buyers comparing within the neighborhood. 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
$322,555
Median
$355,449

This home is -9.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,804 across all districts. With a homestead exemption claimed, that drops to $4,494 — saving $1,310 per year. That's $375 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%$2,881
Round RockCity0.3720%$1,200
Williamson CountyCounty0.3694%$1,192
Austin Community Collegespecial0.1034%$334
Williamson County FM/RdCounty0.0443%$143
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,804

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $348,912 would pay approximately $2,178 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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