8512 HILL ROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $373,255 and $488,109, with a best estimate of $411,536. 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
$411,536
$366,194
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 $373,255 and $488,109. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$44,810 for 166 sqft more living space and -$14,931 for being older. Net adjustment: +$29,879.
Adjusted +$44,540 for 165 sqft more living space and -$29,862 for being older. Net adjustment: +$14,678.
Adjusted +$20,245 for 75 sqft more living space and -$14,931 for being older. Net adjustment: +$5,314.
Adjusted -$34,282 for 127 sqft less living space and +$67,190 for being newer. Net adjustment: +$32,908.
Adjusted +$53,988 for 200 sqft more living space and +$67,190 for being newer. Net adjustment: +$121,178.
The Neighborhood
This home is valued 18.9% 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 -18.9% below the subdivision median.
Tax Analysis
The estimated annual property tax is $7,009 across all districts. With a homestead exemption claimed, that drops to $5,691 — saving $1,318 per year. That's $474 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% | $3,270 |
| Brushy Creek MUD | MUD | 0.3868% | $1,417 |
| Williamson County | County | 0.3694% | $1,353 |
| Austin Community College | special | 0.1034% | $379 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $366 |
| Williamson County FM/Rd | County | 0.0443% | $162 |
| Upper Brushy Creek WCID | Water | 0.0170% | $62 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $7,009 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $411,536 would pay approximately $2,569 per month (principal and interest only, excluding taxes and insurance).