How prior approval differs from planning permission
With a full planning application, the council weighs every planning issue. With prior approval, the government has already granted permission through permitted development, and the council can only consider the specific matters set out for that class, such as transport, noise or design.
Common types
- Larger home extensions: single-storey rear extensions of up to 8 m (detached) or 6 m (other houses). Neighbours are notified, and the council considers the impact on their amenity. Decision within 42 days.
- Class MA: commercial (Class E) to homes. 56 days.
- Class Q: agricultural buildings to homes. 56 days.
- Upward extensions: adding storeys to houses and some blocks of flats, considering design, amenity and other matters.
- Demolition: the method of demolition and restoring the site.
Deemed approval
For many classes, if the council does not issue a decision within the period, the development can proceed. But it must fully comply with the permitted development conditions. Deemed approval cannot make an ineligible scheme lawful. Keep clear records of the submission date.
Tips
Prior approval applications are often refused because of a missing report or a failure to show compliance. Treat them with the same care as a planning application, with a clear covering letter that addresses every matter the council can consider.
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Sources
- GOV.UK: When is permission required?
- The Town and Country Planning (General Permitted Development) (England) Order 2015
This article is general information about planning in England at the date shown. It is not advice on any particular site, and the law and policy may have changed since. Please speak to us before relying on it.