3508 SHELLCASTLE LN, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $341,381 and $603,529, with a best estimate of $406,179. 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
$406,179
$547,080
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 $341,381 and $603,529. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$8,085 for 29 sqft less living space. Net adjustment: -$8,085.
Adjusted +$27,321 for 98 sqft more living space. Net adjustment: +$27,321.
Adjusted -$129,916 for 466 sqft less living space and +$271 for being newer. Net adjustment: -$129,645.
Adjusted -$14,497 for 52 sqft less living space and -$271 for being older. Net adjustment: -$14,768.
Adjusted -$43,770 for 157 sqft less living space. Net adjustment: -$43,770.
The Neighborhood
This home is valued 7.1% 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 +7.1% above the subdivision median.
Tax Analysis
The estimated annual property tax is $9,843 across all districts. With a homestead exemption claimed, that drops to $8,492 — saving $1,351 per year. That's $708 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% | $4,886 |
| Round Rock | City | 0.3720% | $2,035 |
| Williamson County | County | 0.3694% | $2,021 |
| Austin Community College | special | 0.1034% | $566 |
| Williamson County FM/Rd | County | 0.0443% | $243 |
| Upper Brushy Creek WCID | Water | 0.0170% | $93 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $9,843 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $406,179 would pay approximately $2,535 per month (principal and interest only, excluding taxes and insurance).