4581 POST LOOP, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $477,953 and $642,409, with a best estimate of $479,923. 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
$479,923
$480,861
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 $477,953 and $642,409. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$39,680 for 179 sqft more living space. Net adjustment: +$39,680.
Adjusted +$19,951 for 90 sqft more living space and +$1,826 for being newer. Net adjustment: +$21,777.
Adjusted +$12,857 for 58 sqft more living space and +$9,130 for being newer. Net adjustment: +$21,987.
Adjusted -$15,739 for 71 sqft less living space and +$9,130 for being newer. Net adjustment: -$6,609.
Adjusted -$15,295 for 69 sqft less living space and +$10,957 for being newer. Net adjustment: -$4,338.
The Neighborhood
This home is valued 8.1% 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
typicalThis home is -8.1% below the subdivision median.
Tax Analysis
The estimated annual property tax is $9,936 across all districts. With a homestead exemption claimed, that drops to $8,376 — saving $1,560 per year. That's $698 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% | $5,052 |
| Highlands at Mayfield Ranch MUD | MUD | 0.4850% | $2,332 |
| Williamson County | County | 0.3694% | $1,777 |
| Williamson County ESD #9 - Round Rock | ESD | 0.0999% | $480 |
| Williamson County FM/Rd | County | 0.0443% | $213 |
| Upper Brushy Creek WCID | Water | 0.0170% | $82 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 2.0663% | $9,936 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $479,923 would pay approximately $2,996 per month (principal and interest only, excluding taxes and insurance).