3518 CORNERSTONE ST, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $244,167 and $310,723, with a best estimate of $264,490. That places the property below the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.
Estimated Value Range
$264,490
$266,915
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 $244,167 and $310,723. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted -$27,654 for 124 sqft less living space and +$1,607 for being newer. Net adjustment: -$26,047.
Adjusted -$35,237 for 158 sqft less living space and -$1,607 for being older. Net adjustment: -$36,844.
Adjusted +$2,676 for 12 sqft more living space and +$6,427 for being newer. Net adjustment: +$9,103.
Adjusted -$24,309 for 109 sqft less living space and -$1,607 for being older. Net adjustment: -$25,916.
Adjusted -$14,942 for 67 sqft less living space and +$1,607 for being newer. Net adjustment: -$13,335.
The Neighborhood
This home is valued 10.0% below the R210480H - Brushy Creek median of $296,542. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 14.6% over the past year.
R210480H - Brushy Creek
typicalThis home is -10.0% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,109 across all districts. With a homestead exemption claimed, that drops to $3,809 — saving $1,300 per year. That's $317 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% | $2,384 |
| Brushy Creek MUD | MUD | 0.3868% | $1,033 |
| Williamson County | County | 0.3694% | $986 |
| Austin Community College | special | 0.1034% | $276 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $267 |
| Williamson County FM/Rd | County | 0.0443% | $118 |
| Upper Brushy Creek WCID | Water | 0.0170% | $45 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $5,109 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $264,490 would pay approximately $1,651 per month (principal and interest only, excluding taxes and insurance).