This guide explains planning permission rules affecting outbuildings developments in Arun.
Most householder development follows national permitted development rules unless local restrictions apply.
Development must comply with national permitted development height limits.
Extensions must comply with national permitted development depth limits.
Development near boundaries must follow national permitted development rules.
Roof alterations must comply with national permitted development rules.
Materials should be similar in appearance to the existing house.
Conservation areas, listed buildings, protected trees and hedges and heritage sites
Conservation areas, listed buildings, protected trees and hedges and heritage sites
Last verified 2026-01
UK permitted development legislation allows many outbuildings projects without planning permission provided certain limits are followed.
However local planning authorities such as those covering Arun may impose additional planning controls through conservation area policies or Article 4 directions.
Many outbuildings projects in Arun may fall under permitted development rights if they remain within national planning limits.
Development must comply with national permitted development height limits.
Development near boundaries must follow national permitted development rules.
Yes. Additional planning restrictions may apply in conservation areas or where Article 4 directions remove permitted development rights.
Planning applications for outbuildings projects in Arun are handled by the local planning authority covering Arun, West Sussex.
For official planning advice consult the council planning portal for your area or visit the UK Planning Portal.
This guide summarises planning rules affecting outbuildings developments in Arun.
Planning regulations may change and additional local planning policies may apply. Always confirm planning requirements with your local planning authority before starting development.
Last updated March 2026