To make a compensation claim for surveyor negligence, you must take legal action within 6 years from the date on which the negligence occurred, or within 3 years from the date you first become aware of the negligence. In some cases, there is a delay between when the negligence happened and when the consequences of the negligence became apparent, for example with structural damage that takes several years to show itself. In these circumstances, you would likely have 3 years from your date of knowledge to bring a claim (or when you should have known).