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1320/1322 ZEPHYR LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4 bath1,971 sqftBuilt 1986

Property at a Glance

This home is estimated between $620,733 and $1,162,432, with a best estimate of $895,158. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$620,733 $1,162,432
Best Estimate
$895,158
WCAD Value
$370,703
Low Confidence

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

There are 5 comparable properties within range, but none are in R450X - Round Rock East - Duplex. The estimated range of $620,733 and $1,162,432 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,070 sqft Built 2004
Raw Value $657,973
Adjusted Value $620,733

Adjusted -$19,237 for 99 sqft less living space and -$18,003 for being older. Net adjustment: -$37,240.

3 bed 2 bath 2,398 sqft Built 1977
Raw Value $1,236,401
Adjusted Value $1,162,432

Adjusted -$82,971 for 427 sqft less living space and +$9,002 for being newer. Net adjustment: -$73,969.

3 bed 2 bath 2,458 sqft Built 1978
Raw Value $981,787
Adjusted Value $895,158

Adjusted -$94,630 for 487 sqft less living space and +$8,001 for being newer. Net adjustment: -$86,629.

4 bed 2 bath 1,710 sqft Built 1978
Raw Value $717,131
Adjusted Value $775,848

Adjusted +$50,716 for 261 sqft more living space and +$8,001 for being newer. Net adjustment: +$58,717.

3 bed 2 bath 2,320 sqft Built 1970
Raw Value $931,475
Adjusted Value $921,450

Adjusted -$67,815 for 349 sqft less living space and +$16,003 for being newer and +$41,787 for having a garage. Net adjustment: -$10,025.

The Neighborhood

This home is valued 4.3% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$370,703
Median
$355,449

This home is +4.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,670 across all districts. With a homestead exemption claimed, that drops to $5,351 — saving $1,319 per year. That's $446 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%$3,311
Round RockCity0.3720%$1,379
Williamson CountyCounty0.3694%$1,370
Austin Community Collegespecial0.1034%$383
Williamson County FM/RdCounty0.0443%$164
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,670

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $895,158 would pay approximately $5,588 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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