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3644 FOSSILWOOD WAY, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,098 sqftBuilt 2004

Property at a Glance

This home is estimated between $464,284 and $519,488, with a best estimate of $477,118. 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

$464,284 $519,488
Best Estimate
$477,118
WCAD Value
$590,724
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 $464,284 and $519,488. 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 $470,670

Adjusted -$15,055 for 54 sqft less living space and -$541 for being older. Net adjustment: -$15,596.

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 $480,177

Adjusted -$15,333 for 55 sqft less living space and -$271 for being older. Net adjustment: -$15,604.

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 $464,284

Adjusted -$14,776 for 53 sqft less living space and -$271 for being older. Net adjustment: -$15,047.

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 $519,488

Adjusted -$5,855 for 21 sqft less living space and -$541 for being older. Net adjustment: -$6,396.

3709 FOSSILWOOD WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,150 sqft Built 2005
Raw Value $491,886
Adjusted Value $477,118

Adjusted -$14,497 for 52 sqft less living space and -$271 for being older. Net adjustment: -$14,768.

The Neighborhood

This home is valued 15.6% 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
$590,724
Median
$510,992

This home is +15.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,629 across all districts. With a homestead exemption claimed, that drops to $9,269 — saving $1,360 per year. That's $772 per month a buyer should budget. The assessed value increased +5.2% vs the subdivision average of -5.8%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,276
Round RockCity0.3720%$2,197
Williamson CountyCounty0.3694%$2,182
Austin Community Collegespecial0.1034%$611
Williamson County FM/RdCounty0.0443%$262
Upper Brushy Creek WCIDWater0.0170%$100
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,629
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $477,118 would pay approximately $2,978 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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