3850 CASTLE ROCK CV, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $338,428 and $504,434, with a best estimate of $384,325. That places the property above the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.
Estimated Value Range
$384,325
$355,925
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R107503F - PRESERVE AT STONE OAK - PH 3 & 4, this home's estimated market value is between $338,428 and $504,434. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$130,898 for 643 sqft more living space. Net adjustment: +$130,898.
Adjusted +$53,947 for 265 sqft more living space. Net adjustment: +$53,947.
Adjusted +$3,461 for 17 sqft more living space. Net adjustment: +$3,461.
Adjusted +$118,683 for 583 sqft more living space. Net adjustment: +$118,683.
Adjusted +$16,693 for 82 sqft more living space. Net adjustment: +$16,693.
The Neighborhood
This home is valued 3.3% below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 10.9% over the past year.
R107503F - PRESERVE AT STONE OAK - PH 3 & 4
typicalThis home is -3.3% below the subdivision median.
Tax Analysis
The estimated annual property tax is $6,404 across all districts. With a homestead exemption claimed, that drops to $5,088 — saving $1,316 per year. That's $424 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% | $3,179 |
| Round Rock | City | 0.3720% | $1,324 |
| Williamson County | County | 0.3694% | $1,315 |
| Austin Community College | special | 0.1034% | $368 |
| Williamson County FM/Rd | County | 0.0443% | $158 |
| Upper Brushy Creek WCID | Water | 0.0170% | $61 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $6,404 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $384,325 would pay approximately $2,399 per month (principal and interest only, excluding taxes and insurance).