514/516 SIERRA CV, ROUND ROCK, TX 78664
ROUND ROCK, 78664 — williamson County
Property at a Glance
This home is estimated between $322,812 and $369,319, with a best estimate of $346,567. 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
$346,567
$342,026
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 $322,812 and $369,319. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$1,166 for 6 sqft more living space. Net adjustment: +$1,166.
Adjusted +$9,910 for 51 sqft more living space. Net adjustment: +$9,910.
Adjusted +$9,521 for 49 sqft more living space. Net adjustment: +$9,521.
Adjusted -$54,602 for 281 sqft less living space and -$1,000 for being older. Net adjustment: -$55,602.
Adjusted -$58,294 for 300 sqft less living space and -$11,002 for being older. Net adjustment: -$69,296.
The Neighborhood
This home is valued 3.8% 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 -3.8% below the subdivision median.
Tax Analysis
The estimated annual property tax is $6,154 across all districts. With a homestead exemption claimed, that drops to $4,840 — saving $1,314 per year. That's $403 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% | $3,055 |
| Round Rock | City | 0.3720% | $1,272 |
| Williamson County | County | 0.3694% | $1,264 |
| Austin Community College | special | 0.1034% | $354 |
| Williamson County FM/Rd | County | 0.0443% | $152 |
| Upper Brushy Creek WCID | Water | 0.0170% | $58 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $6,154 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $346,567 would pay approximately $2,163 per month (principal and interest only, excluding taxes and insurance).