502/504 SIERRA CV, ROUND ROCK, TX 78664
ROUND ROCK, 78664 — williamson County
Property at a Glance
This home is estimated between $270,861 and $395,340, with a best estimate of $294,977. 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
$294,977
$324,002
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R450X - Round Rock East - Duplex, this home's estimated market value is between $270,861 and $395,340. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$89,772 for 462 sqft less living space. Net adjustment: -$89,772.
This comparable closely matches the subject property's features.
Adjusted -$12,825 for 66 sqft less living space and +$5,001 for being newer. Net adjustment: -$7,824.
Adjusted -$44,498 for 229 sqft less living space. Net adjustment: -$44,498.
Adjusted -$89,772 for 462 sqft less living space. Net adjustment: -$89,772.
The Neighborhood
This home is valued 8.8% 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
typicalThis home is -8.8% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,830 across all districts. With a homestead exemption claimed, that drops to $4,519 — saving $1,311 per year. That's $377 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
| District | Type | Rate | Annual Amount |
|---|---|---|---|
| Round Rock ISD | School | 0.8931% | $2,894 |
| Round Rock | City | 0.3720% | $1,205 |
| Williamson County | County | 0.3694% | $1,197 |
| Austin Community College | special | 0.1034% | $335 |
| Williamson County FM/Rd | County | 0.0443% | $144 |
| Upper Brushy Creek WCID | Water | 0.0170% | $55 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $5,830 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $294,977 would pay approximately $1,841 per month (principal and interest only, excluding taxes and insurance).