Not every change to a home requires a planning application. In England, a set of automatic permissions – known as permitted development rights – allows homeowners to carry out certain works without needing approval from their local planning authority.
It’s a useful framework that streamlines minor development. But it comes with important limits, and those limits aren’t always obvious until something goes wrong.
Permit yourself a cup of tea, and read our latest article:
What are permitted development rights?
Permitted development rights are a form of planning permission granted not by the local authority on a case -by -case basis, but by Parliament through secondary legislation. They allow specified categories of development to proceed automatically, provided the works fall within defined parameters – size limits, height restrictions, proximity to boundaries, and so on.
For residential properties, permitted development rights cover a range of common works including rear extensions, loft conversions, outbuildings, porches, solar panels, and certain changes of use. The idea is that minor, low -impact development shouldn’t need to go through the full planning application process.
What are the limits?
Permitted development rights are not unlimited. The permitted development order sets out precise criteria, and works that exceed those criteria require a full planning application. Key limitations include:
- Size and height thresholds – extensions must fall within maximum floor area and height limits that vary depending on the type of dwelling and its location
- Proximity to boundaries – outbuildings and extensions must generally be set back from the boundary, with stricter rules for side elevations
- Designated areas – properties in conservation areas, Areas of Outstanding Natural Beauty, National Parks and World Heritage Sites have significantly restricted permitted development rights, with many works requiring full permission that would be automatic elsewhere
- Listed buildings – permitted development rights do not apply to listed buildings, where listed building consent is required for any works affecting the character of the structure
- Article 4 Directions – local planning authorities can remove permitted development rights in specific areas through an Article 4 Direction, often used in conservation areas or to protect the character of particular streets
Why does this matter for buyers?
Works carried out under permitted development rights don’t require a planning application – but they do need to actually fall within the permitted development criteria. A loft conversion or extension built without planning permission isn’t automatically compliant with permitted development. If the works exceed the parameters, they represent an unauthorised development, regardless of whether the seller believed they were permitted.
This is a more common issue than many buyers expect. Extensions built over the permitted size limit, outbuildings in the wrong location, or works in a conservation area that required full planning permission – all of these can surface during the conveyancing process and require resolution before exchange.
Can permitted development compliance be confirmed formally?
Yes – a Lawful Development Certificate (LDC) provides formal confirmation from the local planning authority that works were lawful at the time they were carried out. Where a seller has carried out works under permitted development rights, an LDC is increasingly requested as part of the conveyancing process. Where one doesn’t exist, the conveyancer will need to assess whether applying for one, or arranging a planning indemnity policy, is the more appropriate route. For a full explanation of how LDCs work, see our dedicated guide: Five Minutes On… Lawful Development Certificates.
What about future changes to permitted development rights?
Permitted development rights are a product of legislation and have changed significantly over time – and continue to do so. Rights that didn’t exist a few years ago may now apply, and rights that buyers are counting on for future development may be amended or removed. Buyers with specific plans for a property should always check the current position rather than assuming that what was permissible for a previous owner remains so today.
Permitted development rights are a genuine benefit for homeowners – they make routine improvements straightforward and avoid unnecessary bureaucracy. But they operate within a framework of rules that need to be understood and checked. Works that look like permitted development aren’t always compliant, and a buyer who inherits an unauthorised extension or outbuilding inherits the problem that comes with it. Getting clarity on the permitted development position of a property before exchange is always time well spent.
