3512 SHELLCASTLE LN, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $473,806 and $735,954, with a best estimate of $538,604. That places the property above the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.
Estimated Value Range
$538,604
$468,898
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 $473,806 and $735,954. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$124,340 for 446 sqft more living space. Net adjustment: +$124,340.
Adjusted +$159,746 for 573 sqft more living space. Net adjustment: +$159,746.
Adjusted +$2,509 for 9 sqft more living space and +$271 for being newer. Net adjustment: +$2,780.
Adjusted +$117,928 for 423 sqft more living space and -$271 for being older. Net adjustment: +$117,657.
Adjusted +$88,655 for 318 sqft more living space. Net adjustment: +$88,655.
The Neighborhood
This home is valued 8.2% below the L498506D - VILLAGE AT MAYFIELD median of $510,992. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.8% over the past year.
L498506D - VILLAGE AT MAYFIELD
typicalThis home is -8.2% below the subdivision median.
Tax Analysis
The estimated annual property tax is $8,437 across all districts. With a homestead exemption claimed, that drops to $7,100 — saving $1,337 per year. That's $592 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% | $4,188 |
| Round Rock | City | 0.3720% | $1,744 |
| Williamson County | County | 0.3694% | $1,732 |
| Austin Community College | special | 0.1034% | $485 |
| Williamson County FM/Rd | County | 0.0443% | $208 |
| Upper Brushy Creek WCID | Water | 0.0170% | $80 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $8,437 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $538,604 would pay approximately $3,362 per month (principal and interest only, excluding taxes and insurance).