I know some people will be mad at me for proposing this, but hear me out:
The problem: One of the biggest problems of current housing is not just house resellers, but house hoarders. Endwalker will solve the issue of house reselling, but it will not solve the latter.
What I mean about house hoarders are players who buy a house and never bother to decorate or use them in any way. If you take a 15 minute walk around a few residential wards, you'll understand what I'm talking about.
This is why housing wards frequently feel very dead and empty, while at the same time, housing is one of the most demanded things in the game.
Why this problem even exists: There is no downside or cost to keeping an abandoned house for basically no reason. You don't have to pay anything, you don't have to do anything with it, you just have to enter it every 45 days.
There is no use for a lottery system if people are just going to hoard houses for no reason at all "just in case".
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So, that being said, allow me to talk about my suggestion.
Why: If people have to pay a fee, they are less likely to keep a house for no reason at all, motivating a more frequent rotation on the housing market.
This is also a form of gil-sink, helping control inflation. Even more considering housing is already something that costs considerable amounts of money, either for the house itself or furniture.
How it would work: After purchasing the house, you'd be charged a fee relative to the initial price of the house, something around 5% or 10%. After 30 days, you'd receive a notification reminding you to pay for it, and if not paid in the next 15 days, the house would be relinquished. This could even replace the current 45 days countdown.
Isn't this too expensive?
Not really, in my opinion. A small house owner would only have to pay about 300k a month, which is an insignificant amount, while a medium house owner would have to pay about 1.7 mil, and a large house owner would have to pay 5 mil. This is not unreasonable considering the category of those houses. Any active player that can afford a medium house should be able to make at least 1.7 million gil in one month, a large FC could easily collect enough donations for their 5 mil fee.
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Anyway, I know how controversial this suggestion could be, but it just hurts me to walk around residential wards and see so many empty, abandoned houses, while so many players and FCs struggle to get one.