Auckland - Waitakere. From personal experience, CCTV inspection of the sewer pipe is valid for only 6 months and geotech report only 5 years. I did not expect the soil composition to change after 5 years... but this is when they expire ! I would not be surprised to hear the topographical survey has a "shell life" as well?...
council has come back and said there is no set time they are valid for, its up to the individual reporting company, but they if you were to get one now with the time limit of say 5 years they could ask for another one in 3 years time. its up to who ever processes the consent.