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2917 PORTULACA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,436 sqftBuilt 2007

Property at a Glance

This home is estimated between $540,476 and $966,920, with a best estimate of $867,429. 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

$540,476 $966,920
Best Estimate
$867,429
WCAD Value
$929,164
High Confidence

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 $540,476 and $966,920. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3065 PORTULACA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,952 sqft Built 2012
Raw Value $717,579
Adjusted Value $540,476

Adjusted -$190,905 for 516 sqft less living space and +$13,802 for being newer. Net adjustment: -$177,103.

3032 PORTULACA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,330 sqft Built 2013
Raw Value $811,650
Adjusted Value $867,429

Adjusted +$39,217 for 106 sqft more living space and +$16,562 for being newer. Net adjustment: +$55,779.

3056 PORTULACA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,336 sqft Built 2013
Raw Value $849,095
Adjusted Value $902,654

Adjusted +$36,997 for 100 sqft more living space and +$16,562 for being newer. Net adjustment: +$53,559.

3036 PORTULACA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,373 sqft Built 2013
Raw Value $812,840
Adjusted Value $852,710

Adjusted +$23,308 for 63 sqft more living space and +$16,562 for being newer. Net adjustment: +$39,870.

2945 PORTULACA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,235 sqft Built 2012
Raw Value $878,754
Adjusted Value $966,920

Adjusted +$74,364 for 201 sqft more living space and +$13,802 for being newer. Net adjustment: +$88,166.

The Neighborhood

This home is valued 23.9% 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 average
1,049 Properties
$750,158 Median Value
+0.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$929,164
Median
$750,158

This home is +23.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,718 across all districts. With a homestead exemption claimed, that drops to $15,296 — saving $1,422 per year. That's $1,275 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

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,298
Round RockCity0.3720%$3,456
Williamson CountyCounty0.3694%$3,433
Austin Community Collegespecial0.1034%$961
Williamson County FM/RdCounty0.0443%$412
Upper Brushy Creek WCIDWater0.0170%$158
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$16,718

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $867,429 would pay approximately $5,414 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/19/2026.

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