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8507 FERN BLUFF AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,728 sqftBuilt 1993

Property at a Glance

This home is estimated between $516,848 and $609,986, with a best estimate of $594,409. 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

$516,848 $609,986
Best Estimate
$594,409
WCAD Value
$379,232
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD). The estimated range of $516,848 and $609,986 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,719 sqft Built 1997
Raw Value $538,375
Adjusted Value $594,409

Adjusted +$3,600 for 9 sqft more living space and -$7,759 for being older and +$60,193 for having a garage. Net adjustment: +$56,034.

4 bed 2 bath 1,760 sqft Built 1999
Raw Value $541,287
Adjusted Value $516,848

Adjusted -$12,800 for 32 sqft less living space and -$11,639 for being older. Net adjustment: -$24,439.

4 bed 2 bath 1,790 sqft Built 1998
Raw Value $635,714
Adjusted Value $601,216

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

4 bed 2 bath 1,662 sqft Built 1998
Raw Value $593,286
Adjusted Value $609,986

Adjusted +$26,399 for 66 sqft more living space and -$9,699 for being older. Net adjustment: +$16,700.

4 bed 2 bath 1,846 sqft Built 1996
Raw Value $574,798
Adjusted Value $521,779

Adjusted -$47,199 for 118 sqft less living space and -$5,820 for being older. Net adjustment: -$53,019.

The Neighborhood

This home is valued 16.4% 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)

below average
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$379,232
Median
$453,749

This home is -16.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,475 across all districts. With a homestead exemption claimed, that drops to $5,154 — saving $1,321 per year. That's $430 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%$3,387
Williamson CountyCounty0.3694%$1,401
Fern Bluff MUDMUD0.1800%$683
Austin Community Collegespecial0.1034%$392
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$379
Williamson County FM/RdCounty0.0443%$168
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$6,475

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $594,409 would pay approximately $3,710 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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