3737 CASTLE ROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $352,978 and $409,066, with a best estimate of $381,031. 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
$381,031
$349,028
Based on 5 comparable properties(0 in the same subdivision)
There are 5 comparable properties within range, but none are in R107503F - PRESERVE AT STONE OAK - PH 3 & 4. The estimated range of $352,978 and $409,066 should be treated as a rough guide.
Comparable Properties (5)
Adjusted +$15,268 for 75 sqft more living space and -$11,206 for being older. Net adjustment: +$4,062.
Adjusted +$33,590 for 165 sqft more living space and -$8,405 for being older. Net adjustment: +$25,185.
Adjusted +$33,793 for 166 sqft more living space and -$11,206 for being older. Net adjustment: +$22,587.
Adjusted -$25,854 for 127 sqft less living space and -$26,615 for being older. Net adjustment: -$52,469.
Adjusted +$40,715 for 200 sqft more living space and -$26,615 for being older. Net adjustment: +$14,100.
The Neighborhood
This home is valued 5.2% 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 -5.2% below the subdivision median.
Tax Analysis
The estimated annual property tax is $6,280 across all districts. With a homestead exemption claimed, that drops to $4,965 — saving $1,315 per year. That's $414 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% | $3,117 |
| Round Rock | City | 0.3720% | $1,298 |
| Williamson County | County | 0.3694% | $1,289 |
| Austin Community College | special | 0.1034% | $361 |
| Williamson County FM/Rd | County | 0.0443% | $155 |
| Upper Brushy Creek WCID | Water | 0.0170% | $59 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $6,280 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $381,031 would pay approximately $2,378 per month (principal and interest only, excluding taxes and insurance).