2909 PORTULACA DR, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $560,824 and $1,001,441, with a best estimate of $887,777. That places the property above the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158, in a neighborhood that appreciated 0.3% over the past year.
Estimated Value Range
$887,777
$1,051,987
Based on 5 comparable properties(5 in the same subdivision)
Based on 5 comparable properties in R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5, this home's estimated market value is between $560,824 and $1,001,441. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted -$170,557 for 461 sqft less living space and +$13,802 for being newer. Net adjustment: -$156,755.
Adjusted +$59,565 for 161 sqft more living space and +$16,562 for being newer. Net adjustment: +$76,127.
Adjusted +$57,346 for 155 sqft more living space and +$16,562 for being newer. Net adjustment: +$73,908.
Adjusted +$43,657 for 118 sqft more living space and +$16,562 for being newer. Net adjustment: +$60,219.
Adjusted +$241,961 for 654 sqft more living space and +$16,562 for being newer. Net adjustment: +$258,523.
The Neighborhood
This home is valued 40.2% above the R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5 median of $750,158. With 1,049 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.3% over the past year.
R102606C - SENDERO SPRINGS / BEHREN'S RANCH R5
above averageThis home is +40.2% above the subdivision median.
Tax Analysis
The estimated annual property tax is $18,928 across all districts. With a homestead exemption claimed, that drops to $17,483 — saving $1,445 per year. That's $1,457 per month a buyer should budget. The assessed value increased +10.3% vs the subdivision average of +0.3%. This above-average increase gives a protest opportunity score of 80 out of 100 — it may be worth challenging the appraisal.
Tax Districts
| District | Type | Rate | Annual Amount |
|---|---|---|---|
| Round Rock ISD | School | 0.8931% | $9,395 |
| Round Rock | City | 0.3720% | $3,913 |
| Williamson County | County | 0.3694% | $3,887 |
| Austin Community College | special | 0.1034% | $1,088 |
| Williamson County FM/Rd | County | 0.0443% | $466 |
| Upper Brushy Creek WCID | Water | 0.0170% | $179 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.7993% | $18,928 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $887,777 would pay approximately $5,541 per month (principal and interest only, excluding taxes and insurance).