Permitted Development – Page 8
GPDO classes, limits, conditions, prior approval and Article 4 directions explained.
Permitted Development articles – page 8
279 articlesAgricultural buildings on holdings of 5 hectares or more
Class A of Part 6 allows agricultural buildings without planning permission inside strict limits. Here is what qualifies, what the numbers are and how notification works.
Class Q: the building operations actually permitted
Most Class Q refusals turn on the building operations limb rather than the principle of conversion. Here is what the Order permits and how to evidence it.
Forming a new vehicle access under Part 2 Class B
A dropped kerb involves two consents: planning for the access itself, which Class B of Part 2 may cover on an unclassified road, and the highway authority's crossover approval under section 184.
Hard surfaces under Class F and porous surfacing
Class F of the GPDO lets you lay a driveway without planning permission. Over 5 square metres in a front garden, the surface must be porous or drain to a permeable area inside the curtilage.
Loft dormers under Part 1 Class B: volume and position
Class B of the GPDO 2015 allows a loft dormer without planning permission, inside a 40 or 50 cubic metre volume allowance, away from the principal elevation and set back from the eaves.
Moving between C3 and C4 and the Article 4 problem
The C3 to C4 permitted change is real and widely withdrawn. Where to look for an article 4 direction, how to prove an existing HMO use, and why reverting to C3 is a one way door.
Solar panels and the 200 millimetre projection limit
Class A of Part 14 allows domestic solar without permission, subject to a 0.2 metre projection limit that tilted frames on flat roofs almost always exceed.
Farm development on units of less than five hectares
On an agricultural unit between 0.4 and five hectares, Class B permits extensions, hard surfaces, private ways and plant, but never the erection of a new building.
Agricultural prior notification on holdings of five hectares
Part 6 Class A applies only to agricultural units of five hectares or more. Here are the limits, the 28 day notification procedure and the buildings the right does not cover.
Class R: flexible commercial use of a farm building
Class R of the GPDO lets farm buildings change to commercial use up to a cumulative 500 square metres. Here is what the right covers, when prior approval applies and how it interacts with Class Q.
The structural works test in a Class Q barn conversion
Most Class Q refusals turn on whether the barn can be converted at all. The closed list of permitted operations, the reasonably necessary limit, and what a usable structural report says.
Painting the outside of a house and where the right stops
Repainting a house is normally permitted development whatever the colour. The exceptions are narrow but serious, and render is not painting at all.
When a garden office stops being incidental to the house
The building and the use are separate questions. Class E covers the structure, but employees, client visits and deliveries can turn a garden office into a use needing permission.
Class AA upward extension of a house: limits and prior approval
Class AA of Part 1 allows extra storeys on a house without a full application, but only on post-1948 houses outside designated areas and under 18 metres. Here are the limits that decide it.
Curtilage and principal elevation in Class A cases
Most Class A disputes turn on defined terms rather than dimensions. Here is how curtilage, the original dwellinghouse and the principal elevation are established, including corner plots.
How the prior approval procedure actually works
The GPDO grants the permission; prior approval asks the council to consider a short list of specified matters. What the application must contain, how the 56-day period works, and why refusals for insufficient information are so common.
Part 16 telecommunications masts and prior approval
Permitted development rights for electronic communications code operators narrow the council's decision to siting and appearance. What the class covers, what the ICNIRP declaration settles, and how the 56-day deadline works.
Class Q barn conversions after the 2024 amendments
The 2024 amendments raised Class Q to ten dwellings and 1,000 square metres, moved the qualifying date and added a limited rear extension. The conversion test is unchanged and still decides most schemes.
Class A rear extension limits and the larger home scheme
Under Class A of the GPDO a single-storey rear extension can project 3 metres, or 4 metres on a detached house, within height limits. The larger home extension scheme doubles those figures if the council does not object.
How previous extensions count against your allowance
The original dwellinghouse is the house as it stood on 1 July 1948, or as first built. Every enlargement since counts, whoever built it and whatever consent it had.
Designated land and householder permitted development
Designated land does not remove permitted development wholesale. It removes named rights in Part 1: dormers, side extensions, two storey rear extensions, cladding and the larger home extension route.
Article 4 directions and how councils remove rights
An Article 4 direction does not ban development. It moves the decision back to the council. The twelve month notice rule explains why directions arrive with a year's warning, and that window is the only one an investor gets.
Class Q agricultural conversions after the 2024 changes
The 2024 amendments raised Class Q to 10 dwellings and 1,000 square metres, capped each dwelling at 150 square metres and added a rear extension right. The conditions that decide whether the right exists at all have not softened.
Conditions that remove permitted development on new estates
New estates routinely carry a condition stripping out householder permitted development rights. It binds every later owner, and removing it means an application of its own.
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