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605 PECAN AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath2,336 sqftBuilt 2016

Property at a Glance

This home is estimated between $464,625 and $723,592, with a best estimate of $658,954. That places the property above the G437X - Williamson Multifamily 3 or More Units median of $571,543, in a neighborhood that declined 9.1% over the past year.

Estimated Value Range

$464,625 $723,592
Best Estimate
$658,954
WCAD Value
$1,002,277
Low Confidence

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

There are 5 comparable properties within range, but none are in G437X - Williamson Multifamily 3 or More Units. The estimated range of $464,625 and $723,592 should be treated as a rough guide.

Comparable Properties (5)

4 bed 4 bath 2,292 sqft Built 1997
Raw Value $456,372
Adjusted Value $528,515

Adjusted +$11,924 for 44 sqft more living space and +$60,219 for being newer. Net adjustment: +$72,143.

5 bed 3 bath 1,642 sqft Built 2025
Raw Value $499,407
Adjusted Value $658,954

Adjusted +$188,072 for 694 sqft more living space and -$28,525 for being older. Net adjustment: +$159,547.

5 bed 3 bath 1,642 sqft Built 2025
Raw Value $500,285
Adjusted Value $659,832

Adjusted +$188,072 for 694 sqft more living space and -$28,525 for being older. Net adjustment: +$159,547.

4 bed 2 bath 2,033 sqft Built 2005
Raw Value $347,649
Adjusted Value $464,625

Adjusted +$82,112 for 303 sqft more living space and +$34,864 for being newer. Net adjustment: +$116,976.

4 bed 2 bath 1,779 sqft Built 2012
Raw Value $559,969
Adjusted Value $723,592

Adjusted +$150,945 for 557 sqft more living space and +$12,678 for being newer. Net adjustment: +$163,623.

The Neighborhood

This home is valued 75.4% above the G437X - Williamson Multifamily 3 or More Units median of $571,543. With 231 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.1% over the past year.

G437X - Williamson Multifamily 3 or More Units

outlier high
231 Properties
$571,543 Median Value
-9.1% YoY Change
0% Have Pool
33% Have Garage
This Home
$1,002,277
Median
$571,543

This home is +75.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,034 across all districts. With a homestead exemption claimed, that drops to $16,598 — saving $1,436 per year. That's $1,383 per month a buyer should budget. The assessed value increased -0.1% vs the subdivision average of -9.1%. This above-average increase gives a protest opportunity score of 45 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,951
Round RockCity0.3720%$3,728
Williamson CountyCounty0.3694%$3,703
Austin Community Collegespecial0.1034%$1,036
Williamson County FM/RdCounty0.0443%$444
Upper Brushy Creek WCIDWater0.0170%$170
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$18,034
45 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $658,954 would pay approximately $4,113 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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