3706 HILLROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $298,361 and $364,917, with a best estimate of $329,195. That places the property above the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.
Estimated Value Range
$329,195
$279,579
Based on 5 comparable properties(3 in the same subdivision)
Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $298,361 and $364,917. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted -$36,129 for 162 sqft less living space and -$1,607 for being older. Net adjustment: -$37,736.
Adjusted +$26,539 for 119 sqft more living space and +$1,607 for being newer. Net adjustment: +$28,146.
Adjusted +$18,957 for 85 sqft more living space and -$1,607 for being older. Net adjustment: +$17,350.
Adjusted +$56,870 for 255 sqft more living space and +$6,427 for being newer. Net adjustment: +$63,297.
Adjusted +$29,885 for 134 sqft more living space and -$1,607 for being older. Net adjustment: +$28,278.
The Neighborhood
This home is valued 5.7% below the R210480H - Brushy Creek median of $296,542. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 14.6% over the past year.
R210480H - Brushy Creek
typicalThis home is -5.7% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,351 across all districts. With a homestead exemption claimed, that drops to $4,049 — saving $1,302 per year. That's $337 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% | $2,497 |
| Brushy Creek MUD | MUD | 0.3868% | $1,082 |
| Williamson County | County | 0.3694% | $1,033 |
| Austin Community College | special | 0.1034% | $289 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $280 |
| Williamson County FM/Rd | County | 0.0443% | $124 |
| Upper Brushy Creek WCID | Water | 0.0170% | $48 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $5,351 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $329,195 would pay approximately $2,055 per month (principal and interest only, excluding taxes and insurance).