Listed by Chris Glave of Compass
A rare opportunity in the heart of downtown Mill Valley, 34 Sunnyside Avenue offers a unique blend of historic character, residential living, and income-producing potential. Originally built in 1908 as a single-family residence, the property has thoughtfully evolved into a versatile mixed-use building featuring three residential unitsa spacious 3-bedroom, 2-bath residence, a charming 1-bedroom, 1-bath apartment, and a studioalongside two street facing retail spaces that contribute to the vibrant downtown atmosphere. Whether you're seeking a primary residence with supplemental rental income, a multi-generational living opportunity, or a fully leased investment property with strong cash flow, this exceptional property offers remarkable flexibility. Tucked behind the building is convenient off-street parking and a private outdoor entertaining area, creating a peaceful retreat just steps from Mill Valley's renowned restaurants, boutiques, cafs, parks, and trails.

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Property Details of 34 Sunnyside Avenue

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Based on information submitted to CA_BAREIS as of August 19, 2026 8:03 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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