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15615 RM 620, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath3,280 sqftBuilt 1964

Property at a Glance

This home is estimated between $931,339 and $1,136,373, with a best estimate of $969,008. That places the property above 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

$931,339 $1,136,373
Best Estimate
$969,008
WCAD Value
$534,515
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 $931,339 and $1,136,373 should be treated as a rough guide.

Comparable Properties (5)

15611 RR 620 N, AUSTIN, TX 78717
0.00 mi 90% similar Same subdivision
4 bed 2 bath 2,000 sqft Built 1984
Raw Value $630,384
Adjusted Value $1,136,373

Adjusted +$505,989 for 1,280 sqft more living space. Net adjustment: +$505,989.

3 bed 2 bath 3,027 sqft Built 2012
Raw Value $831,327
Adjusted Value $931,339

Adjusted +$100,012 for 253 sqft more living space. Net adjustment: +$100,012.

3 bed 2,935 sqft Built 1965
Raw Value $979,418
Adjusted Value $1,115,798

Adjusted +$136,380 for 345 sqft more living space. Net adjustment: +$136,380.

3 bed 2 bath 2,800 sqft Built 2011
Raw Value $752,214
Adjusted Value $941,960

Adjusted +$189,746 for 480 sqft more living space. Net adjustment: +$189,746.

3 bed 2 bath 2,825 sqft Built 2013
Raw Value $789,145
Adjusted Value $969,008

Adjusted +$179,863 for 455 sqft more living space. Net adjustment: +$179,863.

The Neighborhood

This home is valued 23.6% 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

below average
73 Properties
$699,495 Median Value
-4.6% YoY Change
10% Have Pool
51% Have Garage
This Home
$534,515
Median
$699,495

This home is -23.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,164 across all districts. With a homestead exemption claimed, that drops to $6,814 — saving $1,350 per year. That's $568 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%$4,774
Williamson CountyCounty0.3694%$1,975
Austin Community Collegespecial0.1034%$553
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$535
Williamson County FM/RdCounty0.0443%$237
Upper Brushy Creek WCIDWater0.0170%$91
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$8,164

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $969,008 would pay approximately $6,049 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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