Some kinds of work carried out to a property may not be building work that is controlled by the Building Regulations but may be work covered by the rules about the Party Wall. Put simply, the Party Wall is the dividing wall or partition between two properties which is shared by the owners or tenants of each side. The Party Wall Act introduced a procedure for dealing with disputes between owners of neighbouring properties. There will be some cases where both the Party Wall Act and the Building Regulations will apply to work being carried out. You must find out whether work you intend to carry out will be affected by the Party Wall rules. You can download an explanatory booklet on the Party Wall Act from the Planning Portal.