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423 MAPLE RUN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,175 sqftBuilt 1985

Property at a Glance

This home is estimated between $202,530 and $417,223, with a best estimate of $256,681. That places the property below the R510485H - SOUTHCREEK median of $335,905, in a neighborhood that declined 4.2% over the past year.

Estimated Value Range

$202,530 $417,223
Best Estimate
$256,681
WCAD Value
$319,689
High Confidence

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

Based on 5 comparable properties in R510485H - SOUTHCREEK, this home's estimated market value is between $202,530 and $417,223. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

503 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 790 sqft Built 1985
Raw Value $325,624
Adjusted Value $417,223

Adjusted +$91,599 for 385 sqft more living space. Net adjustment: +$91,599.

523 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,105 sqft Built 1986
Raw Value $285,031
Adjusted Value $300,211

Adjusted +$16,654 for 70 sqft more living space and -$1,474 for being older. Net adjustment: +$15,180.

402 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,742 sqft Built 1986
Raw Value $338,904
Adjusted Value $202,530

Adjusted -$134,900 for 567 sqft less living space and -$1,474 for being older. Net adjustment: -$136,374.

401 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,704 sqft Built 1988
Raw Value $334,552
Adjusted Value $204,270

Adjusted -$125,859 for 529 sqft less living space and -$4,423 for being older. Net adjustment: -$130,282.

521 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,282 sqft Built 1986
Raw Value $283,612
Adjusted Value $256,681

Adjusted -$25,457 for 107 sqft less living space and -$1,474 for being older. Net adjustment: -$26,931.

The Neighborhood

This home is valued 4.8% below the R510485H - SOUTHCREEK median of $335,905. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.2% over the past year.

R510485H - SOUTHCREEK

typical
1,020 Properties
$335,905 Median Value
-4.2% YoY Change
1% Have Pool
97% Have Garage
This Home
$319,689
Median
$335,905

This home is -4.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,752 across all districts. With a homestead exemption claimed, that drops to $4,443 — saving $1,309 per year. That's $370 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%$2,855
Round RockCity0.3720%$1,189
Williamson CountyCounty0.3694%$1,181
Austin Community Collegespecial0.1034%$331
Williamson County FM/RdCounty0.0443%$142
Upper Brushy Creek WCIDWater0.0170%$54
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,752

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $256,681 would pay approximately $1,602 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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