3520 SHELLCASTLE LN, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $340,491 and $571,476, with a best estimate of $392,905. That places the property below the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.
Estimated Value Range
$392,905
$578,200
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in L498506D - VILLAGE AT MAYFIELD, this home's estimated market value is between $340,491 and $571,476. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$39,867 for 143 sqft less living space and -$271 for being older. Net adjustment: -$40,138.
Adjusted -$4,461 for 16 sqft less living space and -$271 for being older. Net adjustment: -$4,732.
Adjusted -$46,279 for 166 sqft less living space and -$541 for being older. Net adjustment: -$46,820.
Adjusted -$75,552 for 271 sqft less living space and -$271 for being older. Net adjustment: -$75,823.
Adjusted -$159,746 for 573 sqft less living space and -$271 for being older. Net adjustment: -$160,017.
The Neighborhood
This home is valued 13.2% above the L498506D - VILLAGE AT MAYFIELD median of $510,992. With 696 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.8% over the past year.
L498506D - VILLAGE AT MAYFIELD
typicalThis home is +13.2% above the subdivision median.
Tax Analysis
The estimated annual property tax is $10,403 across all districts. With a homestead exemption claimed, that drops to $9,046 — saving $1,357 per year. That's $754 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% | $5,164 |
| Round Rock | City | 0.3720% | $2,151 |
| Williamson County | County | 0.3694% | $2,136 |
| Austin Community College | special | 0.1034% | $598 |
| Williamson County FM/Rd | County | 0.0443% | $256 |
| Upper Brushy Creek WCID | Water | 0.0170% | $98 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $10,403 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $392,905 would pay approximately $2,453 per month (principal and interest only, excluding taxes and insurance).