8400 HILL ROCK DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $184,692 and $641,093, with a best estimate of $430,370. 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
$430,370
$396,635
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R222592G - CAT HOLLOW ALL SECTIONS R4, this home's estimated market value is between $184,692 and $641,093. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$35,362 for 131 sqft less living space and +$97,053 for being newer. Net adjustment: +$61,691.
Adjusted -$35,632 for 132 sqft less living space and +$82,121 for being newer. Net adjustment: +$46,489.
Adjusted -$59,926 for 222 sqft less living space and +$97,053 for being newer. Net adjustment: +$37,127.
Adjusted +$138,478 for 513 sqft more living space and +$44,794 for being newer. Net adjustment: +$183,272.
Adjusted -$447,287 for 1,657 sqft less living space and +$59,725 for being newer. Net adjustment: -$387,562.
The Neighborhood
This home is valued 12.2% 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 -12.2% below the subdivision median.
Tax Analysis
The estimated annual property tax is $7,592 across all districts. With a homestead exemption claimed, that drops to $6,268 — saving $1,324 per year. That's $522 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% | $3,542 |
| Brushy Creek MUD | MUD | 0.3868% | $1,534 |
| Williamson County | County | 0.3694% | $1,465 |
| Austin Community College | special | 0.1034% | $410 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $397 |
| Williamson County FM/Rd | County | 0.0443% | $176 |
| Upper Brushy Creek WCID | Water | 0.0170% | $67 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $7,592 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $430,370 would pay approximately $2,686 per month (principal and interest only, excluding taxes and insurance).