3528 SHELLCASTLE LN, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $529,293 and $791,441, with a best estimate of $594,091. 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
$594,091
$490,283
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 $529,293 and $791,441. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$180,098 for 646 sqft more living space and -$271 for being older. Net adjustment: +$179,827.
Adjusted +$215,504 for 773 sqft more living space and -$271 for being older. Net adjustment: +$215,233.
Adjusted +$58,267 for 209 sqft more living space. Net adjustment: +$58,267.
Adjusted +$173,686 for 623 sqft more living space and -$541 for being older. Net adjustment: +$173,145.
Adjusted +$144,413 for 518 sqft more living space and -$271 for being older. Net adjustment: +$144,142.
The Neighborhood
This home is valued 4.1% 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 -4.1% below the subdivision median.
Tax Analysis
The estimated annual property tax is $8,822 across all districts. With a homestead exemption claimed, that drops to $7,481 — saving $1,341 per year. That's $623 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% | $4,379 |
| Round Rock | City | 0.3720% | $1,824 |
| Williamson County | County | 0.3694% | $1,811 |
| Austin Community College | special | 0.1034% | $507 |
| Williamson County FM/Rd | County | 0.0443% | $217 |
| Upper Brushy Creek WCID | Water | 0.0170% | $83 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $8,822 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $594,091 would pay approximately $3,708 per month (principal and interest only, excluding taxes and insurance).