16/03/2026
Planning or permitted development? It’s worth knowing the difference before a project starts.
A lot of property owners assume that any extension or alteration automatically means a full planning application.
That is not always the case.
In Wales, some works to a house may fall under permitted development rights. In simple terms, that means certain types of development can be carried out without making a full planning application, provided the proposal stays within the relevant rules, limits, and conditions.
Why does that matter?
Because once a project goes down the full planning route, a more complete drawing package is usually needed. Planning applications commonly require plans and drawings showing the existing property as well as the proposed development, and those drawings need to meet the required standard for the application to be valid.
So if a project could potentially be dealt with under permitted development, jumping straight into full planning can sometimes mean:
extra drawings
extra cost
extra time
extra process
That does not mean permitted development is automatic, or that every project qualifies. Rights can be limited or removed in some cases, and each property needs to be assessed on its own facts.
But it does mean the right first step can make a big difference.
Good projects do not just start with design. They start with choosing the right route. If you’re unsure which route may be right for your project, getting clarity early can make a big difference. Get in touch for further advice
