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3640 FOSSILWOOD WAY, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,158 sqftBuilt 2007

Property at a Glance

This home is estimated between $371,288 and $537,028, with a best estimate of $488,210. That places the property below the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.

Estimated Value Range

$371,288 $537,028
Best Estimate
$488,210
WCAD Value
$488,464
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 $371,288 and $537,028. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3661 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,152 sqft Built 2006
Raw Value $486,266
Adjusted Value $488,210

Adjusted +$1,673 for 6 sqft more living space and +$271 for being newer. Net adjustment: +$1,944.

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 $497,716

Adjusted +$1,394 for 5 sqft more living space and +$541 for being newer. Net adjustment: +$1,935.

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 $481,824

Adjusted +$1,952 for 7 sqft more living space and +$541 for being newer. Net adjustment: +$2,493.

3713 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,622 sqft Built 2006
Raw Value $500,375
Adjusted Value $371,288

Adjusted -$129,358 for 464 sqft less living space and +$271 for being newer. Net adjustment: -$129,087.

3776 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,119 sqft Built 2006
Raw Value $525,884
Adjusted Value $537,028

Adjusted +$10,873 for 39 sqft more living space and +$271 for being newer. Net adjustment: +$11,144.

The Neighborhood

This home is valued 4.4% below the L498506D - VILLAGE AT MAYFIELD median of $510,992. That positions it competitively for buyers comparing within the neighborhood. 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
$488,464
Median
$510,992

This home is -4.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,789 across all districts. With a homestead exemption claimed, that drops to $7,448 — saving $1,341 per year. That's $621 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%$4,362
Round RockCity0.3720%$1,817
Williamson CountyCounty0.3694%$1,805
Austin Community Collegespecial0.1034%$505
Williamson County FM/RdCounty0.0443%$217
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,789

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $488,210 would pay approximately $3,047 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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