20 Unionstone Dr is a 1,612 square foot house on a 10,164 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on July 03, 1990 for $310,000. Based on Redfin's San Rafael data, we estimate the home's value is $1,377,895.
Single-familyProperty Type
1965Year Built
10,164 sq ftLot Size
$855Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,377,895
$1.1M since sold in July 1990$0 since September
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Estimate history
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This home's estimate is 8.3% lower than the average sale price ($1.50M) of 5 comparable homes.