Under the 1996 party wall contract, a party wall agreement includes all common walls, structures or garden walls between two grounds. This is a legal agreement between you and your neighbours regarding all the construction work that will affect both sides of this common border. „It is recommended to inform your neighbours at least two months before work begins, but in some cases it may take several months for contracts to be completed depending on the size of the project, so you should take this into account when planning the project. If the construction work has an impact on a party structure, you must do so at least two months before work begins. For excavations, you must be noticed at least one month in advance. Work can begin as soon as an agreement has been reached. As explained on gov.uk, the party walls are located on the grounds of two or more owners and either: there are a number of categories in which the party`s work fits, and examples are given to show where the decisions and agreements of the party may or may not be necessary. A party closing agreement is required if you wish to carry out construction work near or on a party wall. You have to tell your neighbors, send them a party wall message and write down an agreement on the party walls. If you use a contractor or architect, then they should be able to advise you, even if they will not serve them the message.
It is often necessary to distribute two communications when the person occupying the neighbouring land has a long lease, so an indication of the party wall must be presented to the occupier and owner of the land. The party wall law applies to most of the work done on party walls. If this is the case, it means that you must notify your neighbour of the proposed works, and if they do not agree with the work, you must appoint a surveyor to prepare a door party price. In other words, if you are doing structural work on a wall that you share with your neighbors, you need a party wall contract. However, if your neighbour does not give you permission to finish the job, you will need a party prize and you will therefore need an impartial surveyor.