Mill Valley
As of January 1, 2023 the city of Mill Valley updated their ADU zoning to comply with the state mandate and accommodate ADU’s. Since then, there’s been high demand from Mill Valley homeowners looking to maximize their property.
Mill Valley ADU Permits and Regulations Resources
Learn about ADU regulations in the city of Mill Valley
Learn about ADU regulations in Mill Valley
the average rent for a 2-bedroom apartment in Mill Valley, CA is $4,000. This is a 36% increase compared to the previous year.
Building permit information for Mill Valley
City Planner
planning@cityofmillvalley.org 415-388-4033
When it comes to financing your ADU, our friends at San Mateo Credit Union offer ADU Loans, reach out to one of our home specialists for an introduction!
Regulations
Max ADU Size
Lot under 9,000 sqft: 600 sqft Lot between 9,000 and 1000 sqft: 650 sqft Lot over 10,000 sqft: 800 sqft
Front Setback
45’ Note: Front setbacks vary by zoning, please talk to a home specialist to confirm
Primary Residence Setback
10’
Side and Rear Setback
4’