Perfect preppers dwelling

[cryingfreeman]

Maybe an underground arrangement within ones own land (assuming you live in countryside and have a few wooded acres). The thought is bugging out to the secret shelter in the trees should you feel the main residence is too high profile during grid-down. I've often thought of doing it without planning permission, i.e., discreetly excavating a rectangular pit, lining the hole with concrete and a DPC course and then stashing a mobile home inside it (for speed and relatively ready-made comfort). The roof and ventilation would need to be particularly well thought-out though.