TustinTustin is a city located in Orange County, California, in the Los Angeles metropolitan area. In 2020, Tustin had a population of 80,276. The city is located next to the county seat, Santa Ana, and does not include the unincorporated community of North Tustin.
Tustin 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