3636 SANDY BROOK DR, ROUND ROCK, TX 78665
ROUND ROCK, 78665 — williamson County
Property at a Glance
This home is estimated between $357,420 and $568,276, with a best estimate of $419,021. That places the property above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056, in a neighborhood that declined 4.7% over the past year.
Estimated Value Range
$419,021
$295,564
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R409599G - STONEY BROOK - ALL SECTIONS, this home's estimated market value is between $357,420 and $568,276. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$172,733 for 746 sqft more living space and +$12,334 for being newer. Net adjustment: +$185,067.
Adjusted +$117,162 for 506 sqft more living space and +$12,334 for being newer. Net adjustment: +$129,496.
Adjusted +$32,880 for 142 sqft more living space. Net adjustment: +$32,880.
Adjusted +$118,783 for 513 sqft more living space and +$12,334 for being newer. Net adjustment: +$131,117.
Adjusted +$136,612 for 590 sqft more living space. Net adjustment: +$136,612.
The Neighborhood
This home is valued 9.9% below the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.7% over the past year.
R409599G - STONEY BROOK - ALL SECTIONS
typicalThis home is -9.9% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,318 across all districts. With a homestead exemption claimed, that drops to $4,013 — saving $1,305 per year. That's $334 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% | $2,640 |
| Round Rock | City | 0.3720% | $1,099 |
| Williamson County | County | 0.3694% | $1,092 |
| Austin Community College | special | 0.1034% | $306 |
| Williamson County FM/Rd | County | 0.0443% | $131 |
| Upper Brushy Creek WCID | Water | 0.0170% | $50 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $5,318 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $419,021 would pay approximately $2,616 per month (principal and interest only, excluding taxes and insurance).