Solution to housing crisis
On congested servers it's extremely difficult to acquire a house. I, myself was lucky enough to get a small plot in Shirogane on Tonberry server, despite wanting a medium.
I have come up with a solution, which I believe shouldn't be too hard to implement (I have programming and networking knowledge). SE could create private islands (instanced versions of 3 types of housing plots (S, M, L)) that would be accessible via the ferry skippers. It would work in much the same way as apartments, but obviously more expensive, more spacious and with a garden.
Sure you wouldn't have neighbours, random scenery near you or have access to a market board (adding that in might be a bit difficult), but who can say no to a private island XD
Part 2 - Condominium > Apartments
Change apartment to Condominium
The condominium will be a duplex type condo meaning there will be two floors and will be the size of a small house. A balcony can be purchased as an upgrade for gardening.
Put fun into getting a condo, you can add Condominium utility which everyone in that condo unit can share these utilities, these utilities would be:
1) A gym - training dummies for everyone to use
2) A SWIMMING POOL (So people can swim and stuff)
3) Workshop (Where people can use crafting station for a small fee)
4) BBQ pit! People can buy food there and be a gather spot for people to chill and meet with her condominium owners!
5) ChocoPark (Carpark) where you can park your chocobo there and do Chocobo stuff
6) Condo transport to people to Exploratory Voyages.
These will help because you will then eliminate the need for people to get their own house because they can do everything in it!~
PLUS IT IS AN INSTANCE thus helping with the server stress if any.