In the section of your lease titled “Maximum Number of Occupants” you will have agreed to the number of people who can live at the premises at any one time.
If the addition of a “housemate” will exceed this agreed maximum, then you will need to make a written request to the owner through the property manager.
The request should clarify whether the “housemate” will take on the responsibilities of a tenant or will merely be an additional occupant.
Even if the addition of the “housemate” as an occupant falls within the agreed “Maximum Number of Occupants”, the personal details of the “housemate” must be provided for use in emergency situations.