3704 HILLROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $248,627 and $315,183, with a best estimate of $268,950. 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
$268,950
$267,109
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 $248,627 and $315,183. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted -$23,194 for 104 sqft less living space and +$1,607 for being newer. Net adjustment: -$21,587.
Adjusted -$30,777 for 138 sqft less living space and -$1,607 for being older. Net adjustment: -$32,384.
Adjusted +$7,137 for 32 sqft more living space and +$6,427 for being newer. Net adjustment: +$13,564.
Adjusted -$19,849 for 89 sqft less living space and -$1,607 for being older. Net adjustment: -$21,456.
Adjusted -$10,482 for 47 sqft less living space and +$1,607 for being newer. Net adjustment: -$8,875.
The Neighborhood
This home is valued 9.9% 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 -9.9% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,113 across all districts. With a homestead exemption claimed, that drops to $3,813 — saving $1,300 per year. That's $318 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% | $2,386 |
| Brushy Creek MUD | MUD | 0.3868% | $1,033 |
| Williamson County | County | 0.3694% | $987 |
| Austin Community College | special | 0.1034% | $276 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $267 |
| Williamson County FM/Rd | County | 0.0443% | $118 |
| Upper Brushy Creek WCID | Water | 0.0170% | $45 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $5,113 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $268,950 would pay approximately $1,679 per month (principal and interest only, excluding taxes and insurance).