I don’t have space to store the van at my home either… One advantage keeping it at a storage unit is it doesn’t have to be local to your home. Currently keeping mine in a storage unit just off the M5 in the south West – making it easier to get the bulk of the journey done without towing. Only need to pack clothes as everything else is already in the van. Then it’s easy to get to all of the South West and Southern Wales.
you can move your storage from year to year, exploring different areas of the UK.
Of course, the downside to this is a longer journey for any maintenance chores that need doing or spontaneous weekend breaks.
Faff factor is much smaller than Camping. Comfort factor is much higher.