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604 SPANISH OAK TER, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,721 sqftBuilt 2006

Property at a Glance

This home is estimated between $436,298 and $633,626, with a best estimate of $524,010. That places the property above the R212505E - BRUSHY CREEK SEC 4 & 5 median of $455,574, in a neighborhood that appreciated 1.7% over the past year.

Estimated Value Range

$436,298 $633,626
Best Estimate
$524,010
WCAD Value
$554,052
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R212505E - BRUSHY CREEK SEC 4 & 5. The estimated range of $436,298 and $633,626 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,764 sqft Built 1997
Raw Value $422,073
Adjusted Value $524,010

Adjusted -$11,084 for 43 sqft less living space and +$113,021 for being newer. Net adjustment: +$101,937.

4 bed 2 bath 1,842 sqft Built 2000
Raw Value $589,468
Adjusted Value $633,626

Adjusted -$31,189 for 121 sqft less living space and +$75,347 for being newer. Net adjustment: +$44,158.

603 SPANISH OAK TER, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,368 sqft Built 2005
Raw Value $476,140
Adjusted Value $579,688

Adjusted +$90,990 for 353 sqft more living space and +$12,558 for being newer. Net adjustment: +$103,548.

3 bed 2 bath 1,820 sqft Built 1999
Raw Value $432,167
Adjusted Value $494,554

Adjusted -$25,518 for 99 sqft less living space and +$87,905 for being newer. Net adjustment: +$62,387.

3 bed 2 bath 1,970 sqft Built 2002
Raw Value $450,249
Adjusted Value $436,298

Adjusted -$64,183 for 249 sqft less living space and +$50,232 for being newer. Net adjustment: -$13,951.

The Neighborhood

This home is valued 21.6% above the R212505E - BRUSHY CREEK SEC 4 & 5 median of $455,574. With 154 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 1.7% over the past year.

R212505E - BRUSHY CREEK SEC 4 & 5

above average
154 Properties
$455,574 Median Value
+1.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$554,052
Median
$455,574

This home is +21.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,605 across all districts. With a homestead exemption claimed, that drops to $9,252 — saving $1,353 per year. That's $771 per month a buyer should budget. The assessed value increased +5.4% vs the subdivision average of +1.7%. This above-average increase gives a protest opportunity score of 34 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,948
Brushy Creek MUDMUD0.3868%$2,143
Williamson CountyCounty0.3694%$2,047
Austin Community Collegespecial0.1034%$573
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$554
Williamson County FM/RdCounty0.0443%$246
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$10,605
34 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $524,010 would pay approximately $3,271 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.

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