3510 CORNERSTONE, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $287,788 and $354,344, with a best estimate of $308,110. That places the property above the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.
Estimated Value Range
$308,110
$271,371
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 $287,788 and $354,344. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$19,180 for 86 sqft more living space and -$1,607 for being older. Net adjustment: +$17,573.
Adjusted +$11,597 for 52 sqft more living space and -$4,820 for being older. Net adjustment: +$6,777.
Adjusted +$49,510 for 222 sqft more living space and +$3,213 for being newer. Net adjustment: +$52,723.
Adjusted +$22,525 for 101 sqft more living space and -$4,820 for being older. Net adjustment: +$17,705.
Adjusted +$31,892 for 143 sqft more living space and -$1,607 for being older. Net adjustment: +$30,285.
The Neighborhood
This home is valued 8.5% 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 -8.5% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,194 across all districts. With a homestead exemption claimed, that drops to $3,894 — saving $1,300 per year. That's $325 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% | $2,424 |
| Brushy Creek MUD | MUD | 0.3868% | $1,050 |
| Williamson County | County | 0.3694% | $1,003 |
| Austin Community College | special | 0.1034% | $281 |
| Williamson County ESD #2 - Sam Bass VFD | ESD | 0.1000% | $271 |
| Williamson County FM/Rd | County | 0.0443% | $120 |
| Upper Brushy Creek WCID | Water | 0.0170% | $46 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9141% | $5,194 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $308,110 would pay approximately $1,923 per month (principal and interest only, excluding taxes and insurance).