55 Sunnyside Ave, Mill Valley, CA

Spaces For Lease

at 55 Sunnyside Ave Contact us

Listing agent Drew Soltis Show Phone

Listing office Cushman & Wakefield | Larkspur Show Phone

Listing date May 20, 2025

Source Moodyscre

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Overview

Available for the first time in over 30 years, 55 Sunnyside Ave presents a leasing opportunity in one of Mill Valley's iconic buildings. Formerly the Mill Valley post office, this property is situated in the heart of downtown. The location offers the potential to establish a brand presence. The property features vaulted ceilings and natural light. On-site parking is available. The property has a size of 7,082 square feet. The downtown location provides visibility.

Suggested Use

Law Firm Real Estate Agency Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Daycare Center Gym & Fitness Center

Zoning and permitted uses should be independently verified with local authorities.

Location Insight

• Map
• Local Demand

City

Mill Valley

County

Marin

State

California

Longitude

-122.545

Latitude

37.9063

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FAQs

What type of property is this?

Office building - Former Mill Valley post office available for lease.

Where is this office building located?

The property is located at 55 Sunnyside Ave Mill Valley, CA.

What is the lease rate?

The lease rate is $54 SF/Yr.

What are key features of this property?

This property features: Unparalleled downtown location and visibility in the heart of Mill Valley.; Rare opportunity to lease an iconic building, available for the first time in 30+ years.; The former Mill Valley post office, a recognizable and historic landmark.