Article 4 Directions: The Developer's Kryptonite
An Article 4 Direction allows a local council to strip away your Permitted Development rights. Always check the local register before buying a commercial conversion or HMO project.
Permitted Development (PD) rights are a developer's best friend, allowing the conversion of properties (such as offices to residential, or houses to small HMOs) without the need for full planning permission. However, local authorities have a powerful weapon to stop this: the Article 4 Direction.
Stripping Away Rights
Under the Town and Country Planning (General Permitted Development) Order, a local council can issue an Article 4 Direction to remove specific PD rights within a defined geographic area. This is most commonly used in university towns to prevent family homes being converted into student HMOs, or in central business districts to stop essential office space being converted into flats.
If an Article 4 Direction is in place, you must apply for full planning permission for the change of use, and the council will almost certainly refuse it based on their local policy. Purchasing an HMO conversion project without checking the Article 4 register is one of the most expensive mistakes a new investor can make.