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

13311 PERTHSHIRE ST, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath1,302 sqftBuilt 1976

Property at a Glance

This home is estimated between $281,288 and $392,297, with a best estimate of $321,707. That places the property below the R371378G - FOREST NORTH PHS 3-5 median of $421,794, in a neighborhood that declined 5.7% over the past year.

Estimated Value Range

$281,288 $392,297
Best Estimate
$321,707
WCAD Value
$323,964
High Confidence

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

Based on 5 comparable properties in R371378G - FOREST NORTH PHS 3-5, this home's estimated market value is between $281,288 and $392,297. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13313 PERTHSHIRE ST, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,236 sqft Built 1976
Raw Value $320,102
Adjusted Value $335,801

Adjusted +$15,699 for 66 sqft more living space. Net adjustment: +$15,699.

13309 PERTHSHIRE ST, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,494 sqft Built 1976
Raw Value $367,376
Adjusted Value $321,707

Adjusted -$45,669 for 192 sqft less living space. Net adjustment: -$45,669.

13315 PERTHSHIRE ST, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,361 sqft Built 1976
Raw Value $329,499
Adjusted Value $315,465

Adjusted -$14,034 for 59 sqft less living space. Net adjustment: -$14,034.

13307 PERTHSHIRE ST, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
2 bed 2 bath 1,171 sqft Built 1976
Raw Value $361,137
Adjusted Value $392,297

Adjusted +$31,160 for 131 sqft more living space. Net adjustment: +$31,160.

13310 PERTHSHIRE ST, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,576 sqft Built 1978
Raw Value $346,262
Adjusted Value $281,288

Adjusted -$65,174 for 274 sqft less living space and +$200 for being newer. Net adjustment: -$64,974.

The Neighborhood

This home is valued 23.2% below the R371378G - FOREST NORTH PHS 3-5 median of $421,794. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.7% over the past year.

R371378G - FOREST NORTH PHS 3-5

below average
742 Properties
$421,794 Median Value
-5.7% YoY Change
6% Have Pool
92% Have Garage
This Home
$323,964
Median
$421,794

This home is -23.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,948 across all districts. With a homestead exemption claimed, that drops to $3,638 — saving $1,310 per year. That's $303 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%$2,893
Williamson CountyCounty0.3694%$1,197
Austin Community Collegespecial0.1034%$335
Williamson County ESD #1 - Jollyville VFDESD0.1000%$324
Williamson County FM/RdCounty0.0443%$144
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$4,948

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $321,707 would pay approximately $2,008 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