Listed by Brian G. Durnian of Calistoga Realty Co Inc
Unique Opportunity - Two residential units situated on a R-3 zoned parcel in Calistoga. The main unit was built in 2014 as the Owners residence as the custom finishes throughout reflect that. The adjacent unit was built in 2012 and designed and permitted for their professional offices. In 2026 the present owners converted that use to a two-bedroom ADU with permits. Landscaped front yard with an inviting patio area. Detached garage with lots of built-in cabinetry, laundry facilities and an electric car charger. Several outbuildings provide lots of storage and a workshop. The R-3 zoning allows professional offices, Live in one unit and work in the other, multi residential and lots of possibilities.

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Property Details of 509 Washington Street, Unit A & C

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Based on information submitted to CA_BAREIS as of September 17, 2026 7:03 AM UTC . All data is deemed reliable but is not guaranteed accurate by the MLS. All information should be independently reviewed and verified for accuracy. IDX information is provided exclusively for consumers’ personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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