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3660 FOSSILWOOD WAY, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,706 sqftBuilt 2005

Property at a Glance

This home is estimated between $322,495 and $649,951, with a best estimate of $529,559. 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

$322,495 $649,951
Best Estimate
$529,559
WCAD Value
$577,416
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 $322,495 and $649,951. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3724 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,742 sqft Built 2006
Raw Value $533,634
Adjusted Value $523,327

Adjusted -$10,036 for 36 sqft less living space and -$271 for being older. Net adjustment: -$10,307.

3737 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,153 sqft Built 2005
Raw Value $495,781
Adjusted Value $649,951

Adjusted +$154,170 for 553 sqft more living space. Net adjustment: +$154,170.

3740 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,041 sqft Built 2006
Raw Value $416,160
Adjusted Value $322,495

Adjusted -$93,394 for 335 sqft less living space and -$271 for being older. Net adjustment: -$93,665.

3788 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,151 sqft Built 2005
Raw Value $479,331
Adjusted Value $634,059

Adjusted +$154,728 for 555 sqft more living space. Net adjustment: +$154,728.

3768 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,700 sqft Built 2005
Raw Value $527,886
Adjusted Value $529,559

Adjusted +$1,673 for 6 sqft more living space. Net adjustment: +$1,673.

The Neighborhood

This home is valued 13.0% 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
$577,416
Median
$510,992

This home is +13.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,389 across all districts. With a homestead exemption claimed, that drops to $9,032 — saving $1,357 per year. That's $753 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%$5,157
Round RockCity0.3720%$2,148
Williamson CountyCounty0.3694%$2,133
Austin Community Collegespecial0.1034%$597
Williamson County FM/RdCounty0.0443%$256
Upper Brushy Creek WCIDWater0.0170%$98
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,389

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $529,559 would pay approximately $3,305 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 4/19/2026.

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