This Practice Note covers the various situations that a developer may encounter when looking at a potential development site. It considers the types of occupiers and interests that might be in place, from commercial leases with protection of Part II of the Landlord and Tenant Act 1954, to long-term residents, licensees and telecoms operators, and how those interests may be terminated and vacant possession recovered. As timing is critical to redevelopment, the Practice Note also explains the timing of serving notices including section 25 notices and break notices and taking action to recover possession, and the importance of ensuring that the developer deals with all the interests on the site, not just the immediate subject.