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3900 OAK RIDGE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,186 sqftBuilt 1977

Property at a Glance

This home is estimated between $540,370 and $1,258,127, with a best estimate of $823,578. 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

$540,370 $1,258,127
Best Estimate
$823,578
WCAD Value
$734,995
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 $540,370 and $1,258,127. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

1804 OAK FOREST DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,862 sqft Built 1981
Raw Value $785,648
Adjusted Value $823,578

Adjusted +$100,362 for 324 sqft more living space and -$62,432 for being older. Net adjustment: +$37,930.

1913 OAK FOREST DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,573 sqft Built 1977
Raw Value $634,472
Adjusted Value $540,370

Adjusted -$119,877 for 387 sqft less living space and +$25,775 for having a garage. Net adjustment: -$94,102.

3 bed 2 bath 2,075 sqft Built 1970
Raw Value $1,114,488
Adjusted Value $1,258,127

Adjusted +$34,383 for 111 sqft more living space and +$109,256 for being newer. Net adjustment: +$143,639.

3907 OAK RIDGE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,813 sqft Built 1999
Raw Value $1,329,608
Adjusted Value $1,127,548

Adjusted +$115,540 for 373 sqft more living space and -$343,375 for being older and +$25,775 for having a garage. Net adjustment: -$202,060.

1808 OAK FOREST DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,357 sqft Built 1977
Raw Value $914,527
Adjusted Value $577,574

Adjusted -$362,728 for 1,171 sqft less living space and +$25,775 for having a garage. Net adjustment: -$336,953.

The Neighborhood

This home is valued 2.9% 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
$734,995
Median
$714,415

This home is +2.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,225 across all districts. With a homestead exemption claimed, that drops to $9,839 — saving $1,386 per year. That's $820 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%$6,564
Williamson CountyCounty0.3694%$2,715
Austin Community Collegespecial0.1034%$760
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$735
Williamson County FM/RdCounty0.0443%$326
Upper Brushy Creek WCIDWater0.0170%$125
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$11,225

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $823,578 would pay approximately $5,141 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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