Beta Williamson County, TX only — data and coverage are limited during early access.

8325 FATHOM CIR, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

4 bed4 bath2,236 sqftBuilt 1978

Property at a Glance

This home is estimated between $384,624 and $652,581, with a best estimate of $444,979. That places the property above the R371X - Round Rock West Below 45 - Duplex median of $419,343, in a neighborhood that declined 8.8% over the past year.

Estimated Value Range

$384,624 $652,581
Best Estimate
$444,979
WCAD Value
$434,312
High Confidence

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

Based on 5 comparable properties in R371X - Round Rock West Below 45 - Duplex, this home's estimated market value is between $384,624 and $652,581. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8327 FATHOM CIR, AUSTIN, TX 78750
0.01 mi 100% similar Same subdivision
4 bed 4 bath 2,472 sqft Built 1978
Raw Value $469,426
Adjusted Value $419,699

Adjusted -$49,727 for 236 sqft less living space. Net adjustment: -$49,727.

8331 FATHOM CIR, AUSTIN, TX 78750
0.04 mi 100% similar Same subdivision
5 bed 4 bath 1,664 sqft Built 1977
Raw Value $438,156
Adjusted Value $562,814

Adjusted +$120,525 for 572 sqft more living space and +$4,133 for being newer. Net adjustment: +$124,658.

8335 FATHOM CIR, AUSTIN, TX 78750
0.06 mi 100% similar Same subdivision
5 bed 4 bath 1,560 sqft Built 1979
Raw Value $514,276
Adjusted Value $652,581

Adjusted +$142,438 for 676 sqft more living space and -$4,133 for being older. Net adjustment: +$138,305.

8337 FATHOM CIR, AUSTIN, TX 78750
0.08 mi 100% similar Same subdivision
3 bed 2 bath 2,073 sqft Built 1976
Raw Value $402,367
Adjusted Value $444,979

Adjusted +$34,345 for 163 sqft more living space and +$8,267 for being newer. Net adjustment: +$42,612.

8401 FATHOM CIR, AUSTIN, TX 78750
0.09 mi 100% similar Same subdivision
4 bed 3 bath 2,073 sqft Built 1976
Raw Value $342,012
Adjusted Value $384,624

Adjusted +$34,345 for 163 sqft more living space and +$8,267 for being newer. Net adjustment: +$42,612.

The Neighborhood

This home is valued 3.6% above the R371X - Round Rock West Below 45 - Duplex median of $419,343. With 462 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.8% over the past year.

R371X - Round Rock West Below 45 - Duplex

typical
462 Properties
$419,343 Median Value
-8.8% YoY Change
0% Have Pool
94% Have Garage
This Home
$434,312
Median
$419,343

This home is +3.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,475 across all districts. With a homestead exemption claimed, that drops to $6,689 — saving $1,786 per year. That's $557 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%$3,879
AustinCity0.5240%$2,276
Williamson CountyCounty0.3694%$1,605
Austin Community Collegespecial0.1034%$449
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$8,475

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $444,979 would pay approximately $2,778 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.

View full property details