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2750 S A W GRIMES BLVD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath6,712 sqftBuilt 1979

Property at a Glance

This home is estimated between $1,883,320 and $2,057,319, with a best estimate of $1,898,373. That places the property above the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322, in a neighborhood that declined 11.1% over the past year.

Estimated Value Range

$1,883,320 $2,057,319
Best Estimate
$1,898,373
WCAD Value
$2,197,485
Low Confidence

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

There are 5 comparable properties within range, but none are in R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs. The estimated range of $1,883,320 and $2,057,319 should be treated as a rough guide.

Comparable Properties (5)

4 bed 4 bath 3,232 sqft Built 1985
Raw Value $942,240
Adjusted Value $2,057,319

Adjusted +$1,144,352 for 3,480 sqft more living space and -$23,038 for being older and -$6,235 for no pool. Net adjustment: +$1,115,079.

3 bed 2 bath 1,617 sqft Built 2003
Raw Value $315,102
Adjusted Value $1,898,373

Adjusted +$1,675,424 for 5,095 sqft more living space and -$92,153 for being older. Net adjustment: +$1,583,271.

3 bed 2 bath 1,655 sqft Built 2006
Raw Value $324,064
Adjusted Value $1,883,320

Adjusted +$1,662,928 for 5,057 sqft more living space and -$103,672 for being older. Net adjustment: +$1,559,256.

3 bed 2 bath 1,655 sqft Built 2006
Raw Value $324,064
Adjusted Value $1,883,320

Adjusted +$1,662,928 for 5,057 sqft more living space and -$103,672 for being older. Net adjustment: +$1,559,256.

3 bed 2 bath 1,374 sqft Built 2004
Raw Value $306,102
Adjusted Value $1,965,440

Adjusted +$1,755,331 for 5,338 sqft more living space and -$95,993 for being older. Net adjustment: +$1,659,338.

The Neighborhood

This home is valued 269.7% above the R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs median of $594,322. With 82 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 11.1% over the past year.

R002D78G - East Round Rock Williamson Co Abstracts lt 20 Acs

outlier high
82 Properties
$594,322 Median Value
-11.1% YoY Change
1% Have Pool
43% Have Garage
This Home
$2,197,485
Median
$594,322

This home is +269.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $28,011 across all districts. With a homestead exemption claimed, that drops to $26,422 — saving $1,589 per year. That's $2,202 per month a buyer should budget. The assessed value increased +2.5% vs the subdivision average of -11.1%. This above-average increase gives a protest opportunity score of 65 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$16,381
Williamson CountyCounty0.3694%$6,776
Austin Community Collegespecial0.1034%$1,897
Williamson County ESD #9 - Round RockESD0.0999%$1,833
Williamson County FM/RdCounty0.0443%$813
Upper Brushy Creek WCIDWater0.0170%$312
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$28,011
65 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,898,373 would pay approximately $11,850 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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