Hi We have recently bought a 5 bed house in Gosford. The house layout is basically: - 3 bed, 1 bath, living and kitchen upstairs, and - 2 bed, 1 bath, living and kitchen downstairs. I understand the previous owner let it out as 2 units by locking off one internal door, then the upstairs unit using the front door leading to hallway/stairs and the downstairs unit accessing via the back door. The previous owner seems to have done this dual occupancy illegally but we’re keen to understand if we can set it up in a legal way. We’re interested in either getting dual occupancy and letting out as 2 units, or even sub-dividing and strata titling as 2 units to sell. Do you know if this is possible? What do we need to consider in this process? Should we just call the council? What professionals can help e.g builder, town planner, surveyor etc? Thanks!