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3820 OCTAVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,950 sqftBuilt 2006

Property at a Glance

This home is estimated between $274,530 and $715,768, with a best estimate of $621,366. 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

$274,530 $715,768
Best Estimate
$621,366
WCAD Value
$652,730
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 $274,530 and $715,768. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3816 OCTAVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,860 sqft Built 2007
Raw Value $614,141
Adjusted Value $638,961

Adjusted +$25,091 for 90 sqft more living space and -$271 for being older. Net adjustment: +$24,820.

3812 OCTAVIA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,703 sqft Built 2007
Raw Value $647,178
Adjusted Value $715,768

Adjusted +$68,861 for 247 sqft more living space and -$271 for being older. Net adjustment: +$68,590.

3821 OCTAVIA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,616 sqft Built 2006
Raw Value $489,521
Adjusted Value $303,848

Adjusted -$185,673 for 666 sqft less living space. Net adjustment: -$185,673.

3817 OCTAVIA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,740 sqft Built 2006
Raw Value $562,820
Adjusted Value $621,366

Adjusted +$58,546 for 210 sqft more living space. Net adjustment: +$58,546.

3825 OCTAVIA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,868 sqft Built 2006
Raw Value $530,458
Adjusted Value $274,530

Adjusted -$255,928 for 918 sqft less living space. Net adjustment: -$255,928.

The Neighborhood

This home is valued 27.7% 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

above average
696 Properties
$510,992 Median Value
-5.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$652,730
Median
$510,992

This home is +27.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,744 across all districts. With a homestead exemption claimed, that drops to $10,373 — saving $1,371 per year. That's $864 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%$5,830
Round RockCity0.3720%$2,428
Williamson CountyCounty0.3694%$2,411
Austin Community Collegespecial0.1034%$675
Williamson County FM/RdCounty0.0443%$289
Upper Brushy Creek WCIDWater0.0170%$111
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,744

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $621,366 would pay approximately $3,879 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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