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

4000 SPANISH OAK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed4 bath5,855 sqftBuilt 2022

Property at a Glance

This home is estimated between $1,564,974 and $2,892,469, with a best estimate of $2,416,440. 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

$1,564,974 $2,892,469
Best Estimate
$2,416,440
WCAD Value
$3,023,320
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $1,564,974 and $2,892,469. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 2,916 sqft Built 2021
Raw Value $638,983
Adjusted Value $1,564,974

Adjusted +$910,383 for 2,939 sqft more living space and +$15,608 for being newer. Net adjustment: +$925,991.

5 bed 4 bath 3,191 sqft Built 2011
Raw Value $1,242,668
Adjusted Value $2,239,555

Adjusted +$825,199 for 2,664 sqft more living space and +$171,688 for being newer. Net adjustment: +$996,887.

4010 OAK MEADOW DR, ROUND ROCK, TX 78681
0.00 mi 76% similar Same subdivision
3 bed 4,108 sqft Built 1975
Raw Value $1,402,295
Adjusted Value $2,677,020

Adjusted +$541,150 for 1,747 sqft more living space and +$733,575 for being newer. Net adjustment: +$1,274,725.

3607 OAK MEADOW DR, ROUND ROCK, TX 78681
0.00 mi 72% similar Same subdivision
3 bed 2 bath 3,481 sqft Built 1977
Raw Value $1,454,741
Adjusted Value $2,892,469

Adjusted +$735,369 for 2,374 sqft more living space and +$702,359 for being newer. Net adjustment: +$1,437,728.

1808 OAK FOREST DR, ROUND ROCK, TX 78681
0.00 mi 71% similar Same subdivision
3 bed 2 bath 3,357 sqft Built 1977
Raw Value $914,527
Adjusted Value $2,416,440

Adjusted +$773,779 for 2,498 sqft more living space and +$702,359 for being newer and +$25,775 for having a garage. Net adjustment: +$1,501,913.

The Neighborhood

This home is valued 323.2% 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

outlier high
161 Properties
$714,415 Median Value
-6.8% YoY Change
5% Have Pool
74% Have Garage
This Home
$3,023,320
Median
$714,415

This home is +323.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $37,250 across all districts. With a homestead exemption claimed, that drops to $35,549 — saving $1,701 per year. That's $2,962 per month a buyer should budget. The assessed value increased +37.9% vs the subdivision average of -6.8%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$21,782
Williamson CountyCounty0.3694%$9,011
Austin Community Collegespecial0.1034%$2,522
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$2,439
Williamson County FM/RdCounty0.0443%$1,081
Upper Brushy Creek WCIDWater0.0170%$415
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$37,250
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $2,416,440 would pay approximately $15,083 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