8310 HILL ROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $162,062 and $459,858, with a best estimate of $420,060. 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
$420,060
$374,388
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 $162,062 and $459,858. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$58,846 for 218 sqft more living space and -$7,466 for being older. Net adjustment: +$51,380.
Adjusted +$58,576 for 217 sqft more living space and -$22,397 for being older. Net adjustment: +$36,179.
Adjusted +$34,282 for 127 sqft more living space and -$7,466 for being older. Net adjustment: +$26,816.
Adjusted -$20,245 for 75 sqft less living space and +$74,656 for being newer. Net adjustment: +$54,411.
Adjusted -$349,569 for 1,295 sqft less living space and -$44,794 for being older. Net adjustment: -$394,363.
The Neighborhood
This home is valued 17.1% 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
below averageThis home is -17.1% below the subdivision median.
Tax Analysis
The estimated annual property tax is $7,166 across all districts. With a homestead exemption claimed, that drops to $5,847 — saving $1,319 per year. That's $487 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% | $3,344 |
| Brushy Creek MUD | MUD | 0.3868% | $1,448 |
| Williamson County | County | 0.3694% | $1,383 |
| Austin Community College | special | 0.1034% | $387 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $374 |
| Williamson County FM/Rd | County | 0.0443% | $166 |
| Upper Brushy Creek WCID | Water | 0.0170% | $64 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $7,166 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $420,060 would pay approximately $2,622 per month (principal and interest only, excluding taxes and insurance).