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2900 PORTULACA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed4 bath2,474 sqftBuilt 2007

Property at a Glance

This home is estimated between $554,535 and $995,152, with a best estimate of $881,488. 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

$554,535 $995,152
Best Estimate
$881,488
WCAD Value
$999,505
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 $554,535 and $995,152. 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 $554,535

Adjusted -$176,846 for 478 sqft less living space and +$13,802 for being newer. Net adjustment: -$163,044.

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 $881,488

Adjusted +$53,276 for 144 sqft more living space and +$16,562 for being newer. Net adjustment: +$69,838.

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 $916,713

Adjusted +$51,056 for 138 sqft more living space and +$16,562 for being newer. Net adjustment: +$67,618.

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 $866,769

Adjusted +$37,367 for 101 sqft more living space and +$16,562 for being newer. Net adjustment: +$53,929.

3077 PORTULACA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,837 sqft Built 2013
Raw Value $742,918
Adjusted Value $995,152

Adjusted +$235,672 for 637 sqft more living space and +$16,562 for being newer. Net adjustment: +$252,234.

The Neighborhood

This home is valued 33.2% 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 average
1,049 Properties
$750,158 Median Value
+0.3% YoY Change
1% Have Pool
99% Have Garage
This Home
$999,505
Median
$750,158

This home is +33.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $17,984 across all districts. With a homestead exemption claimed, that drops to $16,549 — saving $1,435 per year. That's $1,379 per month a buyer should budget. The assessed value increased +9.8% vs the subdivision average of +0.3%. This above-average increase gives a protest opportunity score of 68 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,927
Round RockCity0.3720%$3,718
Williamson CountyCounty0.3694%$3,693
Austin Community Collegespecial0.1034%$1,033
Williamson County FM/RdCounty0.0443%$443
Upper Brushy Creek WCIDWater0.0170%$170
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$17,984
68 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $881,488 would pay approximately $5,502 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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