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

1603 PLUME GRASS PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath720 sqftBuilt 2002

Property at a Glance

This home is estimated between $286,963 and $333,567, with a best estimate of $310,968. That places the property below the R588507E - SHADOW POINTE median of $381,419, in a neighborhood that declined 5.0% over the past year.

Estimated Value Range

$286,963 $333,567
Best Estimate
$310,968
WCAD Value
$314,335
High Confidence

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

Based on 5 comparable properties in R588507E - SHADOW POINTE, this home's estimated market value is between $286,963 and $333,567. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1607 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 932 sqft Built 2002
Raw Value $366,626
Adjusted Value $302,304

Adjusted -$64,322 for 212 sqft less living space. Net adjustment: -$64,322.

1605 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 706 sqft Built 2003
Raw Value $327,321
Adjusted Value $333,567

Adjusted +$4,248 for 14 sqft more living space and +$1,998 for being newer. Net adjustment: +$6,246.

1510 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 916 sqft Built 2003
Raw Value $368,437
Adjusted Value $310,968

Adjusted -$59,467 for 196 sqft less living space and +$1,998 for being newer. Net adjustment: -$57,469.

1601 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 710 sqft Built 2003
Raw Value $324,142
Adjusted Value $329,174

Adjusted +$3,034 for 10 sqft more living space and +$1,998 for being newer. Net adjustment: +$5,032.

1512 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,008 sqft Built 2003
Raw Value $372,346
Adjusted Value $286,963

Adjusted -$87,381 for 288 sqft less living space and +$1,998 for being newer. Net adjustment: -$85,383.

The Neighborhood

This home is valued 17.6% below the R588507E - SHADOW POINTE median of $381,419. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.0% over the past year.

R588507E - SHADOW POINTE

below average
812 Properties
$381,419 Median Value
-5.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$314,335
Median
$381,419

This home is -17.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,656 across all districts. With a homestead exemption claimed, that drops to $4,347 — saving $1,309 per year. That's $362 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%$2,807
Round RockCity0.3720%$1,169
Williamson CountyCounty0.3694%$1,161
Austin Community Collegespecial0.1034%$325
Williamson County FM/RdCounty0.0443%$139
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,656

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $310,968 would pay approximately $1,941 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