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17828 PARK VALLEY DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2,182 sqftBuilt 1993

Property at a Glance

This home is estimated between $399,081 and $936,923, with a best estimate of $642,777. 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

$399,081 $936,923
Best Estimate
$642,777
WCAD Value
$479,672
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD). The estimated range of $399,081 and $936,923 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,377 sqft Built 1996
Raw Value $482,899
Adjusted Value $399,081

Adjusted -$77,998 for 195 sqft less living space and -$5,820 for being older. Net adjustment: -$83,818.

17847 PARK VALLEY DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,082 sqft Built 1992
Raw Value $426,113
Adjusted Value $468,052

Adjusted +$39,999 for 100 sqft more living space and +$1,940 for being newer. Net adjustment: +$41,939.

4 bed 2 bath 1,951 sqft Built 1983
Raw Value $689,293
Adjusted Value $801,090

Adjusted +$92,398 for 231 sqft more living space and +$19,399 for being newer. Net adjustment: +$111,797.

4 bed 2 bath 1,862 sqft Built 1981
Raw Value $785,648
Adjusted Value $936,923

Adjusted +$127,997 for 320 sqft more living space and +$23,278 for being newer. Net adjustment: +$151,275.

3 bed 2 bath 2,057 sqft Built 1982
Raw Value $571,440
Adjusted Value $642,777

Adjusted +$49,999 for 125 sqft more living space and +$21,338 for being newer. Net adjustment: +$71,337.

The Neighborhood

This home is valued 5.7% 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)

typical
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$479,672
Median
$453,749

This home is +5.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,189 across all districts. With a homestead exemption claimed, that drops to $6,850 — saving $1,339 per year. That's $571 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%$4,284
Williamson CountyCounty0.3694%$1,772
Fern Bluff MUDMUD0.1800%$863
Austin Community Collegespecial0.1034%$496
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$480
Williamson County FM/RdCounty0.0443%$213
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,189

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $642,777 would pay approximately $4,012 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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