8309 HILL ROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $338,973 and $517,227, with a best estimate of $377,254. 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
$377,254
$368,834
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 $338,973 and $517,227. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$10,528 for 39 sqft more living space and -$14,931 for being older. Net adjustment: -$4,403.
Adjusted +$10,258 for 38 sqft more living space and -$29,862 for being older. Net adjustment: -$19,604.
Adjusted -$14,037 for 52 sqft less living space and -$14,931 for being older. Net adjustment: -$28,968.
Adjusted +$19,705 for 73 sqft more living space and +$67,190 for being newer. Net adjustment: +$86,895.
Adjusted -$810 for 3 sqft less living space and +$119,449 for being newer. Net adjustment: +$118,639.
The Neighborhood
This home is valued 18.3% 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
below averageThis home is -18.3% below the subdivision median.
Tax Analysis
The estimated annual property tax is $7,060 across all districts. With a homestead exemption claimed, that drops to $5,741 — saving $1,319 per year. That's $478 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% | $3,294 |
| Brushy Creek MUD | MUD | 0.3868% | $1,427 |
| Williamson County | County | 0.3694% | $1,363 |
| Austin Community College | special | 0.1034% | $381 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $369 |
| Williamson County FM/Rd | County | 0.0443% | $164 |
| Upper Brushy Creek WCID | Water | 0.0170% | $63 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $7,060 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $377,254 would pay approximately $2,355 per month (principal and interest only, excluding taxes and insurance).