I would include the storage and bake it into the rent or not bother, you will have enough to account for as it is.

What do they expect design wise; a foyer (of tile or of stone), room for a baby grand, a maids room, how much storage appeals to them?

I am not expert on the why part but I noticed modern apartment put the water heater in different storage room.

He will start to look into Self storage and Parking lots.  

Years ago he bought some raw land and built a self storage facility. 

Here’s an example: I invested in a self-storage deal that’s made very few payouts as it ramped up to stabilized occupancy.

For example yesterday I received 4 calls and 5 texts to find out when the lawn would be mowed, and to complain again about my contractor’s storage trailer that has been onsite for about 2 months.

It's about half a square mile of pipes, electrical work, sensors, chemical reaction vessels and towers, storage tanks, etc. 

Hi Friends,Has anybody purchased a turn-key storage facility with management in place?

I know I can do a lot of this on my phone, but an iPad, even the iPad mini, would be easier to view things, and to sketch ideas, etc)- iCloud storage?