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2881 S A W GRIMES BLVD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed4 bath3,232 sqftBuilt 1985

Property at a Glance

This home is estimated between $891,500 and $1,306,680, with a best estimate of $921,667. That places the property above the R631414D - WARNER RANCH median of $436,007, in a neighborhood that declined 3.2% over the past year.

Estimated Value Range

$891,500 $1,306,680
Best Estimate
$921,667
WCAD Value
$942,240
Low Confidence

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

There are 5 comparable properties within range, but none are in R631414D - WARNER RANCH. The estimated range of $891,500 and $1,306,680 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 6,712 sqft Built 1979
Raw Value $2,197,485
Adjusted Value $1,306,680

Adjusted -$836,366 for 3,480 sqft less living space and -$60,674 for being older and +$6,235 for having a pool. Net adjustment: -$890,805.

4 bed 2 bath 1,409 sqft Built 2003
Raw Value $359,615
Adjusted Value $986,003

Adjusted +$438,131 for 1,823 sqft more living space and +$182,022 for being newer and +$6,235 for having a pool. Net adjustment: +$626,388.

3 bed 2 bath 1,617 sqft Built 2003
Raw Value $315,102
Adjusted Value $891,500

Adjusted +$388,141 for 1,615 sqft more living space and +$182,022 for being newer and +$6,235 for having a pool. Net adjustment: +$576,398.

3 bed 2 bath 1,655 sqft Built 2006
Raw Value $324,064
Adjusted Value $921,667

Adjusted +$379,009 for 1,577 sqft more living space and +$212,359 for being newer and +$6,235 for having a pool. Net adjustment: +$597,603.

3 bed 2 bath 1,655 sqft Built 2006
Raw Value $324,064
Adjusted Value $921,667

Adjusted +$379,009 for 1,577 sqft more living space and +$212,359 for being newer and +$6,235 for having a pool. Net adjustment: +$597,603.

The Neighborhood

This home is valued 116.1% above the R631414D - WARNER RANCH median of $436,007. With 275 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 3.2% over the past year.

R631414D - WARNER RANCH

outlier high
275 Properties
$436,007 Median Value
-3.2% YoY Change
0% Have Pool
97% Have Garage
This Home
$942,240
Median
$436,007

This home is +116.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,359 across all districts. With a homestead exemption claimed, that drops to $7,995 — saving $1,364 per year. That's $666 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%$5,473
Williamson CountyCounty0.3694%$2,264
Austin Community Collegespecial0.1034%$634
Williamson County ESD #9 - Round RockESD0.0999%$612
Williamson County FM/RdCounty0.0443%$272
Upper Brushy Creek WCIDWater0.0170%$104
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$9,359

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $921,667 would pay approximately $5,753 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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