Right now, this housing system is completely one sided in favor of people who already own houses. On Balmung, small plots would open only to be traded by people from other housing wards leaving actual homeless people stuck without the ability to actually buy a small plot of land.

Here's my suggestion on how one might fix this:

1) Add 10 more housing wards to the list this would mean 10 wards with 10 subwards
2) unhide the ready to purchase clock. Right now, that is making some super unhealthy playing behavior as people are being forced to stay up for 24 hours or more, trying to compete
3) stop giving priority to the relocators. If homeless can't get the property that just went on the market, then relocators should not be able to swoop in while its on its timer and snatch it right up also add a long long cooldown timer to relocating as a penalty

Lord of the Rings Onlines housing system used to be automated in that if 3 or less houses became available in a given ward, the system would automatically generate 3 more wards for houses. So everyone can be included on a super huge server like Balmung, you should consider some way to help everyone be able to get a house if they can afford the extortionate amount of gil required.