506/508 SIERRA CV, ROUND ROCK, TX 78664
ROUND ROCK, 78664 — williamson County
Property at a Glance
This home is estimated between $360,843 and $485,113, with a best estimate of $413,774. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.
Estimated Value Range
$413,774
$360,633
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 $360,843 and $485,113. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$89,772 for 462 sqft more living space. Net adjustment: +$89,772.
Adjusted +$76,948 for 396 sqft more living space and +$5,001 for being newer. Net adjustment: +$81,949.
Adjusted +$45,275 for 233 sqft more living space. Net adjustment: +$45,275.
Adjusted +$89,772 for 462 sqft more living space. Net adjustment: +$89,772.
This comparable closely matches the subject property's features.
The Neighborhood
This home is valued 1.5% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.
R450X - Round Rock East - Duplex
typicalThis home is +1.5% above the subdivision median.
Tax Analysis
The estimated annual property tax is $6,489 across all districts. With a homestead exemption claimed, that drops to $5,172 — saving $1,317 per year. That's $431 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% | $3,221 |
| Round Rock | City | 0.3720% | $1,342 |
| Williamson County | County | 0.3694% | $1,332 |
| Austin Community College | special | 0.1034% | $373 |
| Williamson County FM/Rd | County | 0.0443% | $160 |
| Upper Brushy Creek WCID | Water | 0.0170% | $61 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $6,489 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $413,774 would pay approximately $2,583 per month (principal and interest only, excluding taxes and insurance).