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4003 SPANISH OAK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath3,019 sqftBuilt 1979

Property at a Glance

This home is estimated between $672,150 and $1,148,412, with a best estimate of $833,832. That places the property above the R201578D - Great Oaks Sec 1, 1 (AMD), & 2 median of $714,415, in a neighborhood that declined 6.8% over the past year.

Estimated Value Range

$672,150 $1,148,412
Best Estimate
$833,832
WCAD Value
$814,195
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R201578D - Great Oaks Sec 1, 1 (AMD), & 2. The estimated range of $672,150 and $1,148,412 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 2,336 sqft Built 1979
Raw Value $460,584
Adjusted Value $672,150

Adjusted +$211,566 for 683 sqft more living space. Net adjustment: +$211,566.

3 bed 2 bath 2,548 sqft Built 1980
Raw Value $1,018,123
Adjusted Value $1,148,412

Adjusted +$145,897 for 471 sqft more living space and -$15,608 for being older. Net adjustment: +$130,289.

3 bed 2 bath 2,157 sqft Built 1976
Raw Value $519,995
Adjusted Value $833,832

Adjusted +$267,013 for 862 sqft more living space and +$46,824 for being newer. Net adjustment: +$313,837.

3 bed 2 bath 2,044 sqft Built 1979
Raw Value $428,530
Adjusted Value $730,545

Adjusted +$302,015 for 975 sqft more living space. Net adjustment: +$302,015.

3 bed 2 bath 2,146 sqft Built 1976
Raw Value $517,377
Adjusted Value $834,621

Adjusted +$270,420 for 873 sqft more living space and +$46,824 for being newer. Net adjustment: +$317,244.

The Neighborhood

This home is valued 14.0% above the R201578D - Great Oaks Sec 1, 1 (AMD), & 2 median of $714,415. With 161 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 6.8% over the past year.

R201578D - Great Oaks Sec 1, 1 (AMD), & 2

typical
161 Properties
$714,415 Median Value
-6.8% YoY Change
5% Have Pool
74% Have Garage
This Home
$814,195
Median
$714,415

This home is +14.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,435 across all districts. With a homestead exemption claimed, that drops to $11,034 — saving $1,401 per year. That's $920 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%$7,272
Williamson CountyCounty0.3694%$3,008
Austin Community Collegespecial0.1034%$842
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$814
Williamson County FM/RdCounty0.0443%$361
Upper Brushy Creek WCIDWater0.0170%$138
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$12,435

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $833,832 would pay approximately $5,205 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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