If parking sell/rents for more than housing, you should be building parking garages instead of condos. Peter you aren’t maximising potential of the land.

Allowing storage in parking stalls is inefficient. They should be leased to people who want to pay. Massive lanes between storage lockers is inefficient space usage. Task cabinets blocking sight lines is a safety issue. Just use strife lockers.

Also it would be more cost effective to rent finished area for storage instead of parking spaces, since the later rents for more.