Why the Vacancy Rule Was Scrapped
The original 3-month vacancy test created perverse commercial incentives: landlords intentionally terminated leases and boarded up viable commercial premises simply to satisfy the permitted development clock.
By removing the vacancy requirement, property owners can continue collecting commercial rent during the planning and design phase, serving notice on commercial tenants only after prior approval has been granted.
However, developers must still provide documentary evidence (business rate demands, leases, utility bills) proving that the property has operated within Use Class E for at least 2 continuous years.