Paragraph 15 makes provision for landlords with existing tenancies who wish to use Ground 6. It stipulates that the landlord must provide notice within one month after the "commencement date" rather than before the tenancy was entered into. Without this, social landlords under these tenancies would not be able to comply with the requirement in case C, paragraph (c) of the "additional RSL condition" in ground 6.
Schedules Schedule 6: Part 1 - Application of Chapter 1 of Part 1 to existing tenancies: transitional provision Schedule 1: redevelopment ground Effect