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3778 ROYAL PORT RUSH DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,436 sqftBuilt 1996

Property at a Glance

This home is estimated between $257,571 and $628,854, with a best estimate of $484,420. That places the property below the R541693C - FOREST CREEK median of $613,809, in a neighborhood that declined 1.5% over the past year.

Estimated Value Range

$257,571 $628,854
Best Estimate
$484,420
WCAD Value
$664,616
High Confidence

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

Based on 5 comparable properties in R541693C - FOREST CREEK, this home's estimated market value is between $257,571 and $628,854. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3720 ROYAL PORT RUSH DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,797 sqft Built 1993
Raw Value $568,464
Adjusted Value $484,420

Adjusted -$116,481 for 361 sqft less living space and +$32,437 for being newer. Net adjustment: -$84,044.

3749 ROYAL PORT RUSH DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,932 sqft Built 1996
Raw Value $695,715
Adjusted Value $535,675

Adjusted -$160,040 for 496 sqft less living space. Net adjustment: -$160,040.

3738 ROYAL PORT RUSH DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,105 sqft Built 1996
Raw Value $473,432
Adjusted Value $257,571

Adjusted -$215,861 for 669 sqft less living space. Net adjustment: -$215,861.

3741 ROYAL PORT RUSH DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,036 sqft Built 1996
Raw Value $653,062
Adjusted Value $459,465

Adjusted -$193,597 for 600 sqft less living space. Net adjustment: -$193,597.

3712 ROYAL PORT RUSH DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,500 sqft Built 1993
Raw Value $617,067
Adjusted Value $628,854

Adjusted -$20,650 for 64 sqft less living space and +$32,437 for being newer. Net adjustment: +$11,787.

The Neighborhood

This home is valued 8.3% above the R541693C - FOREST CREEK median of $613,809. With 201 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.5% over the past year.

R541693C - FOREST CREEK

typical
201 Properties
$613,809 Median Value
-1.5% YoY Change
2% Have Pool
100% Have Garage
This Home
$664,616
Median
$613,809

This home is +8.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,958 across all districts. With a homestead exemption claimed, that drops to $10,585 — saving $1,373 per year. That's $882 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%$5,936
Round RockCity0.3720%$2,472
Williamson CountyCounty0.3694%$2,455
Austin Community Collegespecial0.1034%$687
Williamson County FM/RdCounty0.0443%$295
Upper Brushy Creek WCIDWater0.0170%$113
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,958

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $484,420 would pay approximately $3,024 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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