3601 HILLROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $264,016 and $330,572, with a best estimate of $284,338. That places the property below the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.
Estimated Value Range
$284,338
$273,523
Based on 5 comparable properties(4 in the same subdivision)
Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $264,016 and $330,572. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted -$7,806 for 35 sqft less living space and +$1,607 for being newer. Net adjustment: -$6,199.
Adjusted -$15,388 for 69 sqft less living space and -$1,607 for being older. Net adjustment: -$16,995.
Adjusted +$22,525 for 101 sqft more living space and +$6,427 for being newer. Net adjustment: +$28,952.
Adjusted -$4,460 for 20 sqft less living space and -$1,607 for being older. Net adjustment: -$6,067.
Adjusted +$4,906 for 22 sqft more living space and +$1,607 for being newer. Net adjustment: +$6,513.
The Neighborhood
This home is valued 7.8% 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 -7.8% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,236 across all districts. With a homestead exemption claimed, that drops to $3,935 — saving $1,301 per year. That's $328 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% | $2,443 |
| Brushy Creek MUD | MUD | 0.3868% | $1,058 |
| Williamson County | County | 0.3694% | $1,011 |
| Austin Community College | special | 0.1034% | $283 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $274 |
| Williamson County FM/Rd | County | 0.0443% | $121 |
| Upper Brushy Creek WCID | Water | 0.0170% | $46 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $5,236 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $284,338 would pay approximately $1,775 per month (principal and interest only, excluding taxes and insurance).