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

7808 OSBORNE DR, ROUND ROCK, TX 78729

ROUND ROCK, 78729 — williamson County

4 bed2 bath1,452 sqftBuilt 1998

Property at a Glance

This home is estimated between $585,489 and $650,192, with a best estimate of $628,864. That places the property above the R392593F - Milwood median of $450,810, in a neighborhood that declined 9.2% over the past year.

Estimated Value Range

$585,489 $650,192
Best Estimate
$628,864
WCAD Value
$569,361
High Confidence

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

Based on 5 comparable properties in R392593F - Milwood, this home's estimated market value is between $585,489 and $650,192. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13348 TAMAYO DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,013 sqft Built 1998
Raw Value $452,838
Adjusted Value $628,864

Adjusted +$176,026 for 439 sqft more living space. Net adjustment: +$176,026.

13400 TAMAYO DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 925 sqft Built 1993
Raw Value $440,971
Adjusted Value $643,042

Adjusted +$211,312 for 527 sqft more living space and -$9,241 for being older. Net adjustment: +$202,071.

7900 OSBORNE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,277 sqft Built 1995
Raw Value $585,566
Adjusted Value $650,192

Adjusted +$70,170 for 175 sqft more living space and -$5,544 for being older. Net adjustment: +$64,626.

7801 VARCELLA TRL, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,137 sqft Built 1995
Raw Value $464,727
Adjusted Value $585,489

Adjusted +$126,306 for 315 sqft more living space and -$5,544 for being older. Net adjustment: +$120,762.

13349 KINGMAN DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,032 sqft Built 1998
Raw Value $450,858
Adjusted Value $619,266

Adjusted +$168,408 for 420 sqft more living space. Net adjustment: +$168,408.

The Neighborhood

This home is valued 26.3% above the R392593F - Milwood median of $450,810. With 1,330 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.2% over the past year.

R392593F - Milwood

above average
1,330 Properties
$450,810 Median Value
-9.2% YoY Change
2% Have Pool
100% Have Garage
This Home
$569,361
Median
$450,810

This home is +26.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,928 across all districts. With a homestead exemption claimed, that drops to $8,573 — saving $1,355 per year. That's $714 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%$5,085
Williamson CountyCounty0.3694%$2,103
North Austin MUD #1MUD0.2165%$1,233
Austin Community Collegespecial0.1034%$589
Williamson County ESD #1 - Jollyville VFDESD0.1000%$569
Williamson County FM/RdCounty0.0443%$252
Upper Brushy Creek WCIDWater0.0170%$97
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$9,928

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $628,864 would pay approximately $3,925 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