Mill ValleyAs 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
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
45’ Note: Front setbacks vary by zoning, please talk to a home specialist to confirm
Primary Residence Setback
Side and Rear Setback