You can always pay for more storage to be added to your property.
Each phase has a limit on how many storages can be within a property.
150 Units
350 Units
550 Units
750 Units
1,000 Units
$100,000
$225,000
$300,000
$450,000
$500,000
Phase 1 housing - can have 4 storage units total.
Phase 2 housing - can have 6 storage units total.
Phase 3 housing - can have 8 storage units total.