21 HIDDEN ACRES DR, ROUND ROCK, TX 78665
ROUND ROCK, 78665 — williamson County
Property at a Glance
This home is estimated between $225,616 and $554,574, with a best estimate of $278,551. That places the property below the R427578G - Hidden Acres & Sec 2 median of $412,870, in a neighborhood that declined 4.2% over the past year.
Estimated Value Range
$278,551
$355,158
Based on 5 comparable properties(4 in the same subdivision)
Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $225,616 and $554,574. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$10,421 for 49 sqft more living space and -$72,419 for being older. Net adjustment: -$61,998.
Adjusted -$83,791 for 394 sqft less living space and -$24,140 for being older. Net adjustment: -$107,931.
Adjusted -$97,827 for 460 sqft less living space and +$24,140 for being newer. Net adjustment: -$73,687.
Adjusted -$99,528 for 468 sqft less living space and +$24,140 for being newer. Net adjustment: -$75,388.
Adjusted -$172,473 for 811 sqft less living space and +$24,140 for being newer. Net adjustment: -$148,333.
The Neighborhood
This home is valued 14.0% below the R427578G - Hidden Acres & Sec 2 median of $412,870. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.2% over the past year.
R427578G - Hidden Acres & Sec 2
typicalThis home is -14.0% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,424 across all districts. With a homestead exemption claimed, that drops to $4,108 — saving $1,316 per year. That's $342 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% | $3,172 |
| Williamson County | County | 0.3694% | $1,312 |
| Austin Community College | special | 0.1034% | $367 |
| Williamson County ESD #9 - Round Rock | ESD | 0.0999% | $355 |
| Williamson County FM/Rd | County | 0.0443% | $157 |
| Upper Brushy Creek WCID | Water | 0.0170% | $60 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.5272% | $5,424 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $278,551 would pay approximately $1,739 per month (principal and interest only, excluding taxes and insurance).