Beta Williamson County, TX only — data and coverage are limited during early access.

3506 SHIRAZ LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,355 sqftBuilt 2006

Property at a Glance

This home is estimated between $257,979 and $516,305, with a best estimate of $471,463. That places the property above the R530506E - SONOMA ALL SECTIONS median of $451,534, in a neighborhood that declined 7.0% over the past year.

Estimated Value Range

$257,979 $516,305
Best Estimate
$471,463
WCAD Value
$444,649
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $257,979 and $516,305. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3410 SHIRAZ LOOP, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,170 sqft Built 2007
Raw Value $447,811
Adjusted Value $491,956

Adjusted +$49,577 for 185 sqft more living space and -$5,432 for being older. Net adjustment: +$44,145.

3425 SHIRAZ LOOP, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,279 sqft Built 2006
Raw Value $495,938
Adjusted Value $516,305

Adjusted +$20,367 for 76 sqft more living space. Net adjustment: +$20,367.

3406 SHIRAZ LOOP, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,767 sqft Built 2006
Raw Value $368,387
Adjusted Value $257,979

Adjusted -$110,408 for 412 sqft less living space. Net adjustment: -$110,408.

3504 SHIRAZ LOOP, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,029 sqft Built 2007
Raw Value $389,533
Adjusted Value $471,463

Adjusted +$87,362 for 326 sqft more living space and -$5,432 for being older. Net adjustment: +$81,930.

4 bed 2 bath 1,639 sqft Built 2018
Raw Value $452,285
Adjusted Value $310,992

Adjusted -$76,107 for 284 sqft less living space and -$65,186 for being older. Net adjustment: -$141,293.

The Neighborhood

This home is valued 1.5% below the R530506E - SONOMA ALL SECTIONS median of $451,534. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 7.0% over the past year.

R530506E - SONOMA ALL SECTIONS

typical
1,029 Properties
$451,534 Median Value
-7.0% YoY Change
2% Have Pool
100% Have Garage
This Home
$444,649
Median
$451,534

This home is -1.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,000 across all districts. With a homestead exemption claimed, that drops to $6,668 — saving $1,332 per year. That's $556 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%$3,971
Round RockCity0.3720%$1,654
Williamson CountyCounty0.3694%$1,643
Austin Community Collegespecial0.1034%$460
Williamson County FM/RdCounty0.0443%$197
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,000

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $471,463 would pay approximately $2,943 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 4/18/2026.

View full property details