4621 POST LN, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $403,249 and $603,253, with a best estimate of $405,219. That places the property below the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.
Estimated Value Range
$405,219
$426,460
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in G799514C - MAYFIELD RANCH, this home's estimated market value is between $403,249 and $603,253. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$35,024 for 158 sqft less living space. Net adjustment: -$35,024.
Adjusted -$54,753 for 247 sqft less living space and +$1,826 for being newer. Net adjustment: -$52,927.
Adjusted -$90,443 for 408 sqft less living space and +$9,130 for being newer. Net adjustment: -$81,313.
Adjusted -$89,999 for 406 sqft less living space and +$10,957 for being newer. Net adjustment: -$79,042.
Adjusted +$26,601 for 120 sqft more living space and +$10,957 for being newer. Net adjustment: +$37,558.
The Neighborhood
This home is valued 18.5% below the G799514C - MAYFIELD RANCH median of $523,371. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.
G799514C - MAYFIELD RANCH
below averageThis home is -18.5% below the subdivision median.
Tax Analysis
The estimated annual property tax is $8,812 across all districts. With a homestead exemption claimed, that drops to $7,262 — saving $1,550 per year. That's $605 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 |
|---|---|---|---|
| Georgetown ISD | School | 1.0506% | $4,480 |
| Highlands at Mayfield Ranch MUD | MUD | 0.4850% | $2,068 |
| Williamson County | County | 0.3694% | $1,576 |
| Williamson County ESD #9 - Round Rock | ESD | 0.0999% | $426 |
| Williamson County FM/Rd | County | 0.0443% | $189 |
| Upper Brushy Creek WCID | Water | 0.0170% | $72 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 2.0663% | $8,812 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $405,219 would pay approximately $2,529 per month (principal and interest only, excluding taxes and insurance).