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17840 PARK VALLEY DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,371 sqftBuilt 1988

Property at a Glance

This home is estimated between $133,961 and $714,653, with a best estimate of $467,639. 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

$133,961 $714,653
Best Estimate
$467,639
WCAD Value
$443,101
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 $133,961 and $714,653 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,276 sqft Built 1979
Raw Value $412,181
Adjusted Value $467,639

Adjusted +$37,999 for 95 sqft more living space and +$17,459 for being newer. Net adjustment: +$55,458.

17847 PARK VALLEY DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 2,082 sqft Built 1992
Raw Value $426,113
Adjusted Value $133,961

Adjusted -$284,393 for 711 sqft less living space and -$7,759 for being older. Net adjustment: -$292,152.

4 bed 2 bath 1,134 sqft Built 1979
Raw Value $451,921
Adjusted Value $564,178

Adjusted +$94,798 for 237 sqft more living space and +$17,459 for being newer. Net adjustment: +$112,257.

5 bed 3 bath 1,398 sqft Built 1983
Raw Value $715,754
Adjusted Value $714,653

Adjusted -$10,800 for 27 sqft less living space and +$9,699 for being newer. Net adjustment: -$1,101.

3 bed 2 bath 1,625 sqft Built 1984
Raw Value $388,330
Adjusted Value $354,684

Adjusted -$101,598 for 254 sqft less living space and +$7,759 for being newer and +$60,193 for having a garage. Net adjustment: -$33,646.

The Neighborhood

This home is valued 2.3% 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)

typical
421 Properties
$453,749 Median Value
-4.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$443,101
Median
$453,749

This home is -2.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,565 across all districts. With a homestead exemption claimed, that drops to $6,233 — saving $1,332 per year. That's $519 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%$3,957
Williamson CountyCounty0.3694%$1,637
Fern Bluff MUDMUD0.1800%$798
Austin Community Collegespecial0.1034%$458
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$443
Williamson County FM/RdCounty0.0443%$196
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$7,565

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $467,639 would pay approximately $2,919 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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