No, the Party Wall etc Act does not provide any facilities by which an existing boundary line dispute can be resolved. Any disputes of that nature should be settled through the proper court jurisdiction or, if both owners agree, through alternative resolution options such as arbitration, mediation, or independent research. Alternative dispute resolution venues like these can often be easier, faster, and cheaper for both parties involved. The RICS offer a service whereby they will refer you to an expert Surveyor who deals with such matters.
