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3800 OCTAVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,910 sqftBuilt 2004

Property at a Glance

This home is estimated between $530,748 and $919,826, with a best estimate of $582,463. That places the property above the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.

Estimated Value Range

$530,748 $919,826
Best Estimate
$582,463
WCAD Value
$526,074
High Confidence

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

Based on 5 comparable properties in L498506D - VILLAGE AT MAYFIELD, this home's estimated market value is between $530,748 and $919,826. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3801 OCTAVIA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 3,008 sqft Built 2004
Raw Value $558,069
Adjusted Value $530,748

Adjusted -$27,321 for 98 sqft less living space. Net adjustment: -$27,321.

3809 OCTAVIA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,077 sqft Built 2006
Raw Value $658,513
Adjusted Value $890,203

Adjusted +$232,231 for 833 sqft more living space and -$541 for being older. Net adjustment: +$231,690.

3901 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 3,031 sqft Built 2004
Raw Value $603,714
Adjusted Value $569,981

Adjusted -$33,733 for 121 sqft less living space. Net adjustment: -$33,733.

3905 VALLARTA LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,893 sqft Built 2006
Raw Value $578,265
Adjusted Value $582,463

Adjusted +$4,739 for 17 sqft more living space and -$541 for being older. Net adjustment: +$4,198.

3820 OCTAVIA LN, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,950 sqft Built 2006
Raw Value $652,730
Adjusted Value $919,826

Adjusted +$267,637 for 960 sqft more living space and -$541 for being older. Net adjustment: +$267,096.

The Neighborhood

This home is valued 3.0% above the L498506D - VILLAGE AT MAYFIELD median of $510,992. With 696 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.8% over the past year.

L498506D - VILLAGE AT MAYFIELD

typical
696 Properties
$510,992 Median Value
-5.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$526,074
Median
$510,992

This home is +3.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,466 across all districts. With a homestead exemption claimed, that drops to $8,118 — saving $1,348 per year. That's $677 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%$4,698
Round RockCity0.3720%$1,957
Williamson CountyCounty0.3694%$1,944
Austin Community Collegespecial0.1034%$544
Williamson County FM/RdCounty0.0443%$233
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,466

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $582,463 would pay approximately $3,636 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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