8508 HILL ROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $178,254 and $572,172, with a best estimate of $423,933. That places the property below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685, in a neighborhood that declined 6.9% over the past year.
Estimated Value Range
$423,933
$401,324
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 $178,254 and $572,172. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$70,184 for 260 sqft more living space and -$14,931 for being older. Net adjustment: +$55,253.
Adjusted +$69,914 for 259 sqft more living space and -$29,862 for being older. Net adjustment: +$40,052.
Adjusted +$45,619 for 169 sqft more living space and -$14,931 for being older. Net adjustment: +$30,688.
Adjusted -$341,741 for 1,266 sqft less living space and -$52,259 for being older. Net adjustment: -$394,000.
Adjusted -$24,294 for 90 sqft less living space and +$111,984 for being newer. Net adjustment: +$87,690.
The Neighborhood
This home is valued 11.1% below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 6.9% over the past year.
R222592G - CAT HOLLOW ALL SECTIONS R4
typicalThis home is -11.1% below the subdivision median.
Tax Analysis
The estimated annual property tax is $7,682 across all districts. With a homestead exemption claimed, that drops to $6,357 — saving $1,325 per year. That's $530 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% | $3,584 |
| Brushy Creek MUD | MUD | 0.3868% | $1,552 |
| Williamson County | County | 0.3694% | $1,483 |
| Austin Community College | special | 0.1034% | $415 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $401 |
| Williamson County FM/Rd | County | 0.0443% | $178 |
| Upper Brushy Creek WCID | Water | 0.0170% | $68 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $7,682 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $423,933 would pay approximately $2,646 per month (principal and interest only, excluding taxes and insurance).