LPT/NPPR exemptions if house uninhabitable

Under the Housing Act of 1966, if the house does not have running water, does not have adequate sewerage facilities, does not have sufficient ventilation, suffers from a significant amount of dampness, suffers, or is likely to suffer, from infestation, or has dangerous wiring, then it is unlikely to be suitable for occupation — and registration for the household charge, or, indeed, the second-home tax, is unnecessary, unless there is already someone living in the house. There may be borderline cases, and, if in doubt, you could consult with a civil engineer or architect, who would have the expertise to determine for you whether a house is unfit for habitation. If you or your engineer/architect determine that the house is not suitable for occupation as a dwelling, then there is no need to register.