Beta Williamson County, TX only — data and coverage are limited during early access.

1005 WHISPERING DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,552 sqftBuilt 1979

Property at a Glance

This home is estimated between $290,309 and $341,927, with a best estimate of $330,310. That places the property above the R470482H - Sunrise Vista Sec 2 Thru 4 median of $325,166, in a neighborhood that appreciated 4.0% over the past year.

Estimated Value Range

$290,309 $341,927
Best Estimate
$330,310
WCAD Value
$367,598
Low Confidence

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

There are 5 comparable properties within range, but none are in R470482H - Sunrise Vista Sec 2 Thru 4. The estimated range of $290,309 and $341,927 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,670 sqft Built 1978
Raw Value $319,246
Adjusted Value $290,680

Adjusted -$27,336 for 118 sqft less living space and -$1,230 for being older. Net adjustment: -$28,566.

3 bed 2 bath 1,474 sqft Built 1985
Raw Value $304,858
Adjusted Value $330,310

Adjusted +$18,070 for 78 sqft more living space and +$7,382 for being newer. Net adjustment: +$25,452.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $290,309

Adjusted +$37,066 for 160 sqft more living space and -$4,921 for being older. Net adjustment: +$32,145.

3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $339,670

Adjusted +$24,325 for 105 sqft more living space and -$11,073 for being older. Net adjustment: +$13,252.

3 bed 2 bath 1,373 sqft Built 1984
Raw Value $294,307
Adjusted Value $341,927

Adjusted +$41,468 for 179 sqft more living space and +$6,152 for being newer. Net adjustment: +$47,620.

The Neighborhood

This home is valued 13.0% above the R470482H - Sunrise Vista Sec 2 Thru 4 median of $325,166. With 99 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.0% over the past year.

R470482H - Sunrise Vista Sec 2 Thru 4

typical
99 Properties
$325,166 Median Value
+4.0% YoY Change
2% Have Pool
91% Have Garage
This Home
$367,598
Median
$325,166

This home is +13.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,614 across all districts. With a homestead exemption claimed, that drops to $5,296 — saving $1,318 per year. That's $441 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%$3,283
Round RockCity0.3720%$1,367
Williamson CountyCounty0.3694%$1,358
Austin Community Collegespecial0.1034%$380
Williamson County FM/RdCounty0.0443%$163
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,614

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $330,310 would pay approximately $2,062 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.

View full property details