If you are proposing to undertake works which are covered under the Party Wall etc. Act 1996 then it is a requirement that the formal Party Wall Notices are served to Adjoining owners.
Thereafter your Adjoining Owner will decide whether they wish to have a Party Wall Award (not the Building Owner)
The Adjoining Owner will not be charged for appointment of their surveyor or preparation of the Party wall Award.
Under the Party Wall etc. Act 1996 legislation this clearly and formally offers what is an equitable resolution to the vast majority of Party wall matters.