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17845 PARK VALLEY DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,182 sqftBuilt 1992

Property at a Glance

This home is estimated between $477,727 and $600,818, with a best estimate of $523,687. 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

$477,727 $600,818
Best Estimate
$523,687
WCAD Value
$509,793
High Confidence

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

Based on 5 comparable properties in R270588F - Fern Bluff Sec 1,1A,1B,2,2 (AMD), this home's estimated market value is between $477,727 and $600,818. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

17841 PARK VALLEY DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,182 sqft Built 1992
Raw Value $506,970
Adjusted Value $506,970

This comparable closely matches the subject property's features.

17848 PARK VALLEY DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,004 sqft Built 1993
Raw Value $531,560
Adjusted Value $600,818

Adjusted +$71,198 for 178 sqft more living space and -$1,940 for being older. Net adjustment: +$69,258.

17853 PARK VALLEY DR, ROUND ROCK, TX 78681
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,184 sqft Built 1992
Raw Value $524,487
Adjusted Value $523,687

Adjusted -$800 for 2 sqft less living space. Net adjustment: -$800.

8305 COLUMBIA FALLS DR, ROUND ROCK, TX 78681
0.06 mi 100% similar Same subdivision
4 bed 2 bath 1,026 sqft Built 1992
Raw Value $478,124
Adjusted Value $540,523

Adjusted +$62,399 for 156 sqft more living space. Net adjustment: +$62,399.

17836 PARK VALLEY DR, ROUND ROCK, TX 78681
0.07 mi 100% similar Same subdivision
3 bed 2 bath 1,250 sqft Built 1989
Raw Value $499,106
Adjusted Value $477,727

Adjusted -$27,199 for 68 sqft less living space and +$5,820 for being newer. Net adjustment: -$21,379.

The Neighborhood

This home is valued 12.4% 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
$509,793
Median
$453,749

This home is +12.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,704 across all districts. With a homestead exemption claimed, that drops to $7,359 — saving $1,345 per year. That's $613 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%$4,553
Williamson CountyCounty0.3694%$1,883
Fern Bluff MUDMUD0.1800%$918
Austin Community Collegespecial0.1034%$527
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$510
Williamson County FM/RdCounty0.0443%$226
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,704

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $523,687 would pay approximately $3,269 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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