3509 SHELLCASTLE LN, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $377,841 and $608,826, with a best estimate of $430,255. 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
$430,255
$467,224
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 $377,841 and $608,826. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$2,788 for 10 sqft less living space. Net adjustment: -$2,788.
Adjusted +$32,618 for 117 sqft more living space. Net adjustment: +$32,618.
Adjusted -$9,200 for 33 sqft less living space and -$271 for being older. Net adjustment: -$9,471.
Adjusted -$38,473 for 138 sqft less living space. Net adjustment: -$38,473.
Adjusted -$122,667 for 440 sqft less living space. Net adjustment: -$122,667.
The Neighborhood
This home is valued 8.6% 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 -8.6% below the subdivision median.
Tax Analysis
The estimated annual property tax is $8,407 across all districts. With a homestead exemption claimed, that drops to $7,070 — saving $1,337 per year. That's $589 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% | $4,173 |
| Round Rock | City | 0.3720% | $1,738 |
| Williamson County | County | 0.3694% | $1,726 |
| Austin Community College | special | 0.1034% | $483 |
| Williamson County FM/Rd | County | 0.0443% | $207 |
| Upper Brushy Creek WCID | Water | 0.0170% | $79 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $8,407 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $430,255 would pay approximately $2,686 per month (principal and interest only, excluding taxes and insurance).