4000 SAPPHIRE LOOP, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $435,891 and $780,177, with a best estimate of $506,792. That places the property below the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673, in a neighborhood that declined 8.0% over the past year.
Estimated Value Range
$506,792
$492,054
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP, this home's estimated market value is between $435,891 and $780,177. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$26,663 for 87 sqft more living space and -$3,995 for being older. Net adjustment: +$22,668.
Adjusted +$148,944 for 486 sqft more living space and -$3,995 for being older. Net adjustment: +$144,949.
Adjusted +$8,581 for 28 sqft more living space and -$3,995 for being older. Net adjustment: +$4,586.
Adjusted -$95,005 for 310 sqft less living space and -$1,997 for being older. Net adjustment: -$97,002.
Adjusted +$54,245 for 177 sqft more living space. Net adjustment: +$54,245.
The Neighborhood
This home is valued 21.1% below the L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP median of $623,673. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.0% over the past year.
L495414C - BORHO/MAYFIELD RANCH/SAPPHIRE LOOP
below averageThis home is -21.1% below the subdivision median.
Tax Analysis
The estimated annual property tax is $9,807 across all districts. With a homestead exemption claimed, that drops to $8,194 — saving $1,613 per year. That's $683 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 |
|---|---|---|---|
| Leander ISD | School | 1.0869% | $5,348 |
| Round Rock | City | 0.3720% | $1,830 |
| Williamson County | County | 0.3694% | $1,818 |
| Austin Community College | special | 0.1034% | $509 |
| Williamson County FM/Rd | County | 0.0443% | $218 |
| Upper Brushy Creek WCID | Water | 0.0170% | $84 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9931% | $9,807 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $506,792 would pay approximately $3,163 per month (principal and interest only, excluding taxes and insurance).