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8437 FERN BLUFF AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,411 sqftBuilt 1993

Property at a Glance

This home is estimated between $558,531 and $687,354, with a best estimate of $646,218. 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

$558,531 $687,354
Best Estimate
$646,218
WCAD Value
$522,622
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 $558,531 and $687,354. 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 $622,626

Adjusted +$164,796 for 412 sqft more living space. Net adjustment: +$164,796.

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 $647,609

Adjusted +$167,596 for 419 sqft more living space. Net adjustment: +$167,596.

4 bed 2 bath 1,505 sqft Built 1998
Raw Value $605,829
Adjusted Value $558,531

Adjusted -$37,599 for 94 sqft less living space and -$9,699 for being older. Net adjustment: -$47,298.

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 $646,218

Adjusted +$168,396 for 421 sqft more living space. Net adjustment: +$168,396.

4 bed 2 bath 1,339 sqft Built 1998
Raw Value $668,254
Adjusted Value $687,354

Adjusted +$28,799 for 72 sqft more living space and -$9,699 for being older. Net adjustment: +$19,100.

The Neighborhood

This home is valued 15.2% above the R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD) median of $453,749. With 421 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.0% over the past year.

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

above average
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$522,622
Median
$453,749

This home is +15.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,923 across all districts. With a homestead exemption claimed, that drops to $7,576 — saving $1,347 per year. That's $631 per month a buyer should budget. The assessed value increased +9.5% vs the subdivision average of -4.0%. 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%$4,668
Williamson CountyCounty0.3694%$1,931
Fern Bluff MUDMUD0.1800%$941
Austin Community Collegespecial0.1034%$540
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$523
Williamson County FM/RdCounty0.0443%$232
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,923
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $646,218 would pay approximately $4,034 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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