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

1620 PLUME GRASS PL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,024 sqftBuilt 2003

Property at a Glance

This home is estimated between $164,106 and $423,804, with a best estimate of $354,528. 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

$164,106 $423,804
Best Estimate
$354,528
WCAD Value
$368,612
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 $164,106 and $423,804. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1627 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,533 sqft Built 2002
Raw Value $320,537
Adjusted Value $164,106

Adjusted -$154,433 for 509 sqft less living space and -$1,998 for being older. Net adjustment: -$156,431.

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 $392,541

Adjusted +$27,913 for 92 sqft more living space and -$1,998 for being older. Net adjustment: +$25,915.

1500 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,170 sqft Built 2003
Raw Value $396,545
Adjusted Value $352,248

Adjusted -$44,297 for 146 sqft less living space. Net adjustment: -$44,297.

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 $423,804

Adjusted +$96,483 for 318 sqft more living space. Net adjustment: +$96,483.

1611 PLUME GRASS PL, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,137 sqft Built 2003
Raw Value $388,813
Adjusted Value $354,528

Adjusted -$34,285 for 113 sqft less living space. Net adjustment: -$34,285.

The Neighborhood

This home is valued 3.4% 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

typical
812 Properties
$381,419 Median Value
-5.0% YoY Change
1% Have Pool
100% Have Garage
This Home
$368,612
Median
$381,419

This home is -3.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,632 across all districts. With a homestead exemption claimed, that drops to $5,314 — saving $1,318 per year. That's $443 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%$3,292
Round RockCity0.3720%$1,371
Williamson CountyCounty0.3694%$1,362
Austin Community Collegespecial0.1034%$381
Williamson County FM/RdCounty0.0443%$163
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,632

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $354,528 would pay approximately $2,213 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