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8439 FERN BLUFF AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,253 sqftBuilt 1993

Property at a Glance

This home is estimated between $559,428 and $624,156, with a best estimate of $584,411. That places the property above the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749, in a neighborhood that declined 4.0% over the past year.

Estimated Value Range

$559,428 $624,156
Best Estimate
$584,411
WCAD Value
$400,214
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $559,428 and $624,156. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

8442 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 999 sqft Built 1993
Raw Value $457,830
Adjusted Value $559,428

Adjusted +$101,598 for 254 sqft more living space. Net adjustment: +$101,598.

8501 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 992 sqft Built 1993
Raw Value $480,013
Adjusted Value $584,411

Adjusted +$104,398 for 261 sqft more living space. Net adjustment: +$104,398.

8502 FERN BLUFF AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 990 sqft Built 1993
Raw Value $477,822
Adjusted Value $583,020

Adjusted +$105,198 for 263 sqft more living space. Net adjustment: +$105,198.

4 bed 2 bath 1,339 sqft Built 1998
Raw Value $668,254
Adjusted Value $624,156

Adjusted -$34,399 for 86 sqft less living space and -$9,699 for being older. Net adjustment: -$44,098.

4 bed 2 bath 1,315 sqft Built 1998
Raw Value $635,874
Adjusted Value $601,376

Adjusted -$24,799 for 62 sqft less living space and -$9,699 for being older. Net adjustment: -$34,498.

The Neighborhood

This home is valued 11.8% below the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.0% over the past year.

R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD)

typical
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$400,214
Median
$453,749

This home is -11.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,833 across all districts. With a homestead exemption claimed, that drops to $5,508 — saving $1,325 per year. That's $459 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%$3,574
Williamson CountyCounty0.3694%$1,479
Fern Bluff MUDMUD0.1800%$720
Austin Community Collegespecial0.1034%$414
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$400
Williamson County FM/RdCounty0.0443%$177
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$6,833

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $584,411 would pay approximately $3,648 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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