SB9 Two-Unit Application: An SB 9 two-unit development is a project proposed to add one new primary dwelling unit on a lot with an existing single-family dwelling or create up to two new dwelling units on a vacant lot. The units can be attached (duplex) or detached. In addition, one ADU and JADU may be added to the lot.
SB9 Urban Lot Split: An SB9 urban lot split allows for single-family residential lots to be split into two separate parcels, each with up to two units. In addition to each two-unit parcel, the applicant may add one ADU and JADU to each lot.