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400 MAPLE RUN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath838 sqftBuilt 1988

Property at a Glance

This home is estimated between $175,021 and $370,630, with a best estimate of $224,456. 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

$175,021 $370,630
Best Estimate
$224,456
WCAD Value
$335,603
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 $175,021 and $370,630. 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 $341,467

Adjusted +$11,420 for 48 sqft more living space and +$4,423 for being newer. Net adjustment: +$15,843.

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 $224,456

Adjusted -$63,524 for 267 sqft less living space and +$2,949 for being newer. Net adjustment: -$60,575.

519 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 671 sqft Built 1986
Raw Value $327,949
Adjusted Value $370,630

Adjusted +$39,732 for 167 sqft more living space and +$2,949 for being newer. Net adjustment: +$42,681.

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 $180,925

Adjusted -$105,636 for 444 sqft less living space and +$2,949 for being newer. Net adjustment: -$102,687.

409 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,296 sqft Built 1985
Raw Value $279,565
Adjusted Value $175,021

Adjusted -$108,967 for 458 sqft less living space and +$4,423 for being newer. Net adjustment: -$104,544.

The Neighborhood

This home is in line with the R510485H - SOUTHCREEK median of $335,905. 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
$335,603
Median
$335,905

This home is -0.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,038 across all districts. With a homestead exemption claimed, that drops to $4,726 — saving $1,312 per year. That's $394 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%$2,997
Round RockCity0.3720%$1,248
Williamson CountyCounty0.3694%$1,240
Austin Community Collegespecial0.1034%$347
Williamson County FM/RdCounty0.0443%$149
Upper Brushy Creek WCIDWater0.0170%$57
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,038

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $224,456 would pay approximately $1,401 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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