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

15611 RR 620 N, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath2,000 sqftBuilt 1984

Property at a Glance

This home is estimated between $28,526 and $813,338, with a best estimate of $620,131. That places the property below the R103D76C-Abstracts-Great Oaks, Hairy Man, Sam Bass&620 Area median of $699,495, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$28,526 $813,338
Best Estimate
$620,131
WCAD Value
$630,384
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R103D76C-Abstracts-Great Oaks, Hairy Man, Sam Bass&620 Area. The estimated range of $28,526 and $813,338 should be treated as a rough guide.

Comparable Properties (5)

15615 RM 620, AUSTIN, TX 78717
0.00 mi 90% similar Same subdivision
3 bed 2 bath 3,280 sqft Built 1964
Raw Value $534,515
Adjusted Value $28,526

Adjusted -$505,989 for 1,280 sqft less living space. Net adjustment: -$505,989.

4 bed 2 bath 1,675 sqft Built 2010
Raw Value $614,942
Adjusted Value $743,416

Adjusted +$128,474 for 325 sqft more living space. Net adjustment: +$128,474.

3 bed 2 bath 1,886 sqft Built 2010
Raw Value $528,459
Adjusted Value $573,524

Adjusted +$45,065 for 114 sqft more living space. Net adjustment: +$45,065.

4 bed 3 bath 2,150 sqft Built 2013
Raw Value $872,634
Adjusted Value $813,338

Adjusted -$59,296 for 150 sqft less living space. Net adjustment: -$59,296.

3 bed 2 bath 1,702 sqft Built 2011
Raw Value $502,330
Adjusted Value $620,131

Adjusted +$117,801 for 298 sqft more living space. Net adjustment: +$117,801.

The Neighborhood

This home is valued 9.9% below the R103D76C-Abstracts-Great Oaks, Hairy Man, Sam Bass&620 Area median of $699,495. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.6% over the past year.

R103D76C-Abstracts-Great Oaks, Hairy Man, Sam Bass&620 Area

typical
73 Properties
$699,495 Median Value
-4.6% YoY Change
10% Have Pool
51% Have Garage
This Home
$630,384
Median
$699,495

This home is -9.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,628 across all districts. With a homestead exemption claimed, that drops to $8,261 — saving $1,367 per year. That's $688 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%$5,630
Williamson CountyCounty0.3694%$2,329
Austin Community Collegespecial0.1034%$652
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$630
Williamson County FM/RdCounty0.0443%$279
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$9,628

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $620,131 would pay approximately $3,871 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