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4020 SABLE OAKS DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,640 sqftBuilt 1995

Property at a Glance

This home is estimated between $335,499 and $561,583, with a best estimate of $379,385. That places the property below the R543696D - ForestCrPh5&AMD lots 18-19 ek Ph5&AMD lots 18 & median of $471,700, in a neighborhood that appreciated 0.1% over the past year.

Estimated Value Range

$335,499 $561,583
Best Estimate
$379,385
WCAD Value
$581,111
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 $335,499 and $561,583. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4003 SABLE OAKS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,912 sqft Built 1998
Raw Value $429,775
Adjusted Value $379,385

Adjusted -$63,817 for 272 sqft less living space and +$13,427 for being newer. Net adjustment: -$50,390.

4009 SABLE OAKS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,680 sqft Built 2000
Raw Value $548,589
Adjusted Value $561,583

Adjusted -$9,385 for 40 sqft less living space and +$22,379 for being newer. Net adjustment: +$12,994.

5024 SABLE OAKS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,627 sqft Built 1996
Raw Value $548,142
Adjusted Value $555,668

Adjusted +$3,050 for 13 sqft more living space and +$4,476 for being newer. Net adjustment: +$7,526.

5033 SABLE OAKS DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,321 sqft Built 1995
Raw Value $495,277
Adjusted Value $335,499

Adjusted -$159,778 for 681 sqft less living space. Net adjustment: -$159,778.

4 bed 2 bath 1,799 sqft Built 1996
Raw Value $371,800
Adjusted Value $338,971

Adjusted -$37,305 for 159 sqft less living space and +$4,476 for being newer. Net adjustment: -$32,829.

The Neighborhood

This home is valued 23.2% above the R543696D - ForestCrPh5&AMD lots 18-19 ek Ph5&AMD lots 18 & median of $471,700. With 46 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.1% over the past year.

R543696D - ForestCrPh5&AMD lots 18-19 ek Ph5&AMD lots 18 &

above average
46 Properties
$471,700 Median Value
+0.1% YoY Change
0% Have Pool
100% Have Garage
This Home
$581,111
Median
$471,700

This home is +23.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,398 across all districts. With a homestead exemption claimed, that drops to $8,051 — saving $1,347 per year. That's $671 per month a buyer should budget. The assessed value increased +22.4% vs the subdivision average of +0.1%. 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%$4,665
Round RockCity0.3720%$1,943
Williamson CountyCounty0.3694%$1,930
Austin Community Collegespecial0.1034%$540
Williamson County FM/RdCounty0.0443%$232
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,398
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 $379,385 would pay approximately $2,368 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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