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15400 RR 620, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed465 sqftBuilt 2002

Property at a Glance

This home is estimated between $180,461 and $1,257,871, with a best estimate of $533,916. That places the property below the R30QRVP - WEST ROUND ROCK RV PARK median of $626,690, in a neighborhood that appreciated 7.8% over the past year.

Estimated Value Range

$180,461 $1,257,871
Best Estimate
$533,916
WCAD Value
$648,697
Low Confidence

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

There are 5 comparable properties within range, but none are in R30QRVP - WEST ROUND ROCK RV PARK. The estimated range of $180,461 and $1,257,871 should be treated as a rough guide.

Comparable Properties (5)

15405 RR 620, AUSTIN, TX 78717
0.00 mi 60% similar
3 bed 2,600 sqft Built 1984
Raw Value $1,025,801
Adjusted Value $1,025,801

This comparable closely matches the subject property's features.

3 bed 632 sqft Built 1950
Raw Value $180,461
Adjusted Value $180,461

This comparable closely matches the subject property's features.

3 bed 3,480 sqft Built 1984
Raw Value $1,257,871
Adjusted Value $1,257,871

This comparable closely matches the subject property's features.

4 bed 2 bath 1,380 sqft Built 2011
Raw Value $594,109
Adjusted Value $533,916

Adjusted -$60,193 for no garage. Net adjustment: -$60,193.

3 bed 2 bath 1,702 sqft Built 2011
Raw Value $502,330
Adjusted Value $442,137

Adjusted -$60,193 for no garage. Net adjustment: -$60,193.

The Neighborhood

This home is valued 3.5% above the R30QRVP - WEST ROUND ROCK RV PARK median of $626,690. With 16 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 7.8% over the past year.

R30QRVP - WEST ROUND ROCK RV PARK

typical
16 Properties
$626,690 Median Value
+7.8% YoY Change
0% Have Pool
0% Have Garage
This Home
$648,697
Median
$626,690

This home is +3.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,907 across all districts. With a homestead exemption claimed, that drops to $8,537 — saving $1,370 per year. That's $711 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%$5,794
Williamson CountyCounty0.3694%$2,397
Austin Community Collegespecial0.1034%$671
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$649
Williamson County FM/RdCounty0.0443%$288
Upper Brushy Creek WCIDWater0.0170%$110
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$9,907

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $533,916 would pay approximately $3,333 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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