3506 SANDY BROOK DR, ROUND ROCK, TX 78665
ROUND ROCK, 78665 — williamson County
Property at a Glance
This home is estimated between $239,724 and $462,942, with a best estimate of $408,257. That places the property above the R402401F - Lakeside Sub Sec 1 median of $311,433, in a neighborhood that declined 11.3% over the past year.
Estimated Value Range
$408,257
$271,903
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R402401F - Lakeside Sub Sec 1, this home's estimated market value is between $239,724 and $462,942. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$32,728 for 111 sqft less living space. Net adjustment: -$32,728.
Adjusted -$34,497 for 117 sqft less living space and -$3,767 for being older. Net adjustment: -$38,264.
Adjusted +$72,237 for 245 sqft more living space and -$15,069 for being older. Net adjustment: +$57,168.
Adjusted +$161,279 for 547 sqft more living space and -$3,767 for being older. Net adjustment: +$157,512.
Adjusted +$115,873 for 393 sqft more living space and -$15,069 for being older. Net adjustment: +$100,804.
The Neighborhood
This home is valued 12.7% below the R402401F - Lakeside Sub Sec 1 median of $311,433. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 11.3% over the past year.
R402401F - Lakeside Sub Sec 1
typicalThis home is -12.7% below the subdivision median.
Tax Analysis
The estimated annual property tax is $4,892 across all districts. With a homestead exemption claimed, that drops to $3,592 — saving $1,300 per year. That's $299 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% | $2,428 |
| Round Rock | City | 0.3720% | $1,011 |
| Williamson County | County | 0.3694% | $1,005 |
| Austin Community College | special | 0.1034% | $281 |
| Williamson County FM/Rd | County | 0.0443% | $121 |
| Upper Brushy Creek WCID | Water | 0.0170% | $46 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $4,892 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $408,257 would pay approximately $2,548 per month (principal and interest only, excluding taxes and insurance).