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3800 LAGOONA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,302 sqftBuilt 2003

Property at a Glance

This home is estimated between $666,646 and $926,705, with a best estimate of $835,922. 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

$666,646 $926,705
Best Estimate
$835,922
WCAD Value
$634,989
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in L498506D - VILLAGE AT MAYFIELD. The estimated range of $666,646 and $926,705 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $926,705

Adjusted +$23,139 for 83 sqft more living space and -$1,083 for being older. Net adjustment: +$22,056.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $902,524

Adjusted +$41,261 for 148 sqft more living space and +$541 for being newer. Net adjustment: +$41,802.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $666,646

Adjusted +$107,613 for 386 sqft more living space and -$2,978 for being older. Net adjustment: +$104,635.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $682,880

Adjusted +$107,613 for 386 sqft more living space and -$3,519 for being older. Net adjustment: +$104,094.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $835,922

Adjusted +$136,885 for 491 sqft more living space and -$2,978 for being older. Net adjustment: +$133,907.

The Neighborhood

This home is valued 24.3% 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
$634,989
Median
$510,992

This home is +24.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,656 across all districts. With a homestead exemption claimed, that drops to $11,017 — saving $1,639 per year. That's $918 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
Leander ISDSchool1.0869%$6,902
Round RockCity0.3720%$2,362
Williamson CountyCounty0.3694%$2,346
Austin Community Collegespecial0.1034%$657
Williamson County FM/RdCounty0.0443%$281
Upper Brushy Creek WCIDWater0.0170%$108
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9931%$12,656

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $835,922 would pay approximately $5,218 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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