509 MAIN AVE E, ROUND ROCK, TX 78664
ROUND ROCK, 78664 — williamson County
Property at a Glance
This home is estimated between $423,855 and $812,078, with a best estimate of $792,273. That places the property above the R703T14G - Round Rock Historical median of $404,269, in a neighborhood that appreciated 33.1% over the past year.
Estimated Value Range
$792,273
$740,145
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R703T14G - Round Rock Historical, this home's estimated market value is between $423,855 and $812,078. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$164,155 for 521 sqft more living space and -$58,909 for being older. Net adjustment: +$105,246.
Adjusted +$164,155 for 521 sqft more living space and -$58,909 for being older. Net adjustment: +$105,246.
Adjusted +$261,199 for 829 sqft more living space and -$107,526 for no garage. Net adjustment: +$153,673.
Adjusted -$124,771 for 396 sqft less living space and -$58,909 for being older. Net adjustment: -$183,680.
Adjusted +$251,117 for 797 sqft more living space. Net adjustment: +$251,117.
The Neighborhood
This home is valued 83.1% above the R703T14G - Round Rock Historical median of $404,269. With 59 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 33.1% over the past year.
R703T14G - Round Rock Historical
outlier highThis home is +83.1% above the subdivision median.
Tax Analysis
The estimated annual property tax is $13,317 across all districts. With a homestead exemption claimed, that drops to $11,930 — saving $1,387 per year. That's $994 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% | $6,610 |
| Round Rock | City | 0.3720% | $2,753 |
| Williamson County | County | 0.3694% | $2,734 |
| Austin Community College | special | 0.1034% | $765 |
| Williamson County FM/Rd | County | 0.0443% | $328 |
| Upper Brushy Creek WCID | Water | 0.0170% | $126 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $13,317 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $792,273 would pay approximately $4,945 per month (principal and interest only, excluding taxes and insurance).