900 MAMMOTH CT, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $335,115 and $601,169, with a best estimate of $403,948. That places the property above the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194, in a neighborhood that declined 10.9% over the past year.
Estimated Value Range
$403,948
$330,806
Based on 5 comparable properties(0 in the same subdivision)
There are 5 comparable properties within range, but none are in R107503F - PRESERVE AT STONE OAK - PH 3 & 4. The estimated range of $335,115 and $601,169 should be treated as a rough guide.
Comparable Properties (5)
Adjusted -$16,286 for 80 sqft less living space. Net adjustment: -$16,286.
Adjusted -$814 for 4 sqft less living space and -$4,202 for being older. Net adjustment: -$5,016.
Adjusted -$3,868 for 19 sqft less living space and -$11,206 for being older. Net adjustment: -$15,074.
Adjusted -$73,490 for 361 sqft less living space and -$11,206 for being older. Net adjustment: -$84,696.
Adjusted +$53,947 for 265 sqft more living space and -$1,401 for being older. Net adjustment: +$52,546.
The Neighborhood
This home is valued 10.2% below the R107503F - PRESERVE AT STONE OAK - PH 3 & 4 median of $368,194. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 10.9% over the past year.
R107503F - PRESERVE AT STONE OAK - PH 3 & 4
typicalThis home is -10.2% below the subdivision median.
Tax Analysis
The estimated annual property tax is $5,952 across all districts. With a homestead exemption claimed, that drops to $4,641 — saving $1,311 per year. That's $387 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% | $2,954 |
| Round Rock | City | 0.3720% | $1,231 |
| Williamson County | County | 0.3694% | $1,222 |
| Austin Community College | special | 0.1034% | $342 |
| Williamson County FM/Rd | County | 0.0443% | $147 |
| Upper Brushy Creek WCID | Water | 0.0170% | $56 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $5,952 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $403,948 would pay approximately $2,521 per month (principal and interest only, excluding taxes and insurance).