Can I rent out the new unit?

You may rent out SB 9 units for a minimum of 30 consecutive days, but be aware that some cities have income caps for SB 9 rentals. Refer to your city's SB 9 City Guide or local SB 9 ordinance to see if there are affordability requirements in your jurisdiction.
If you perform an SB 9 urban lot split, you will need to live on one of the two lots for a minimum of three years following the lot split.