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17818 PARK VALLEY DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath972 sqftBuilt 1993

Property at a Glance

This home is estimated between $-15,937 and $449,168, with a best estimate of $414,281. That places the property below 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

$-15,937 $449,168
Best Estimate
$414,281
WCAD Value
$466,224
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 $-15,937 and $449,168 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 921 sqft Built 1978
Raw Value $377,237
Adjusted Value $426,735

Adjusted +$20,400 for 51 sqft more living space and +$29,098 for being newer. Net adjustment: +$49,498.

4 bed 2 bath 1,134 sqft Built 1979
Raw Value $451,921
Adjusted Value $414,281

Adjusted -$64,798 for 162 sqft less living space and +$27,158 for being newer. Net adjustment: -$37,640.

3 bed 2 bath 1,149 sqft Built 1999
Raw Value $531,605
Adjusted Value $449,168

Adjusted -$70,798 for 177 sqft less living space and -$11,639 for being older. Net adjustment: -$82,437.

17847 PARK VALLEY DR, ROUND ROCK, TX 78681
0.00 mi 92% similar Same subdivision
3 bed 2 bath 2,082 sqft Built 1992
Raw Value $426,113
Adjusted Value $-15,937

Adjusted -$443,990 for 1,110 sqft less living space and +$1,940 for being newer. Net adjustment: -$442,050.

4 bed 2 bath 1,276 sqft Built 1979
Raw Value $412,181
Adjusted Value $317,742

Adjusted -$121,597 for 304 sqft less living space and +$27,158 for being newer. Net adjustment: -$94,439.

The Neighborhood

This home is valued 2.7% 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
$466,224
Median
$453,749

This home is +2.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,960 across all districts. With a homestead exemption claimed, that drops to $6,623 — saving $1,337 per year. That's $552 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%$4,164
Williamson CountyCounty0.3694%$1,722
Fern Bluff MUDMUD0.1800%$839
Austin Community Collegespecial0.1034%$482
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$466
Williamson County FM/RdCounty0.0443%$207
Upper Brushy Creek WCIDWater0.0170%$79
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$7,960

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $414,281 would pay approximately $2,586 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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