Beta Williamson County, TX only — data and coverage are limited during early access.

503 MAPLE RUN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath790 sqftBuilt 1985

Property at a Glance

This home is estimated between $159,178 and $354,787, with a best estimate of $208,613. 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

$159,178 $354,787
Best Estimate
$208,613
WCAD Value
$325,624
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 $159,178 and $354,787. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $208,613

Adjusted -$74,944 for 315 sqft less living space and -$1,474 for being older. Net adjustment: -$76,418.

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 $354,787

Adjusted +$28,312 for 119 sqft more living space and -$1,474 for being older. Net adjustment: +$26,838.

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 $165,082

Adjusted -$117,056 for 492 sqft less living space and -$1,474 for being older. Net adjustment: -$118,530.

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 $159,178

Adjusted -$120,387 for 506 sqft less living space. Net adjustment: -$120,387.

400 MAPLE RUN, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 838 sqft Built 1988
Raw Value $335,603
Adjusted Value $319,760

Adjusted -$11,420 for 48 sqft less living space and -$4,423 for being older. Net adjustment: -$15,843.

The Neighborhood

This home is valued 3.1% 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
$325,624
Median
$335,905

This home is -3.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,859 across all districts. With a homestead exemption claimed, that drops to $4,548 — saving $1,311 per year. That's $379 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%$2,908
Round RockCity0.3720%$1,211
Williamson CountyCounty0.3694%$1,203
Austin Community Collegespecial0.1034%$337
Williamson County FM/RdCounty0.0443%$144
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,859

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $208,613 would pay approximately $1,302 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.

View full property details