In regards to this: I would strongly advice you to NOT transfer and keep the house, since this will allow you to relocate to any open plot which ignores the RNG-timer placed on plots. Its much, much easier to get a (better) house when you already have one! You'll also get a discount on any larger house you purchase if you relocate - "When purchasing a plot for relocation, 30% of the minimum value of your old plot will be applied towards the price of the new one." (
https://de.finalfantasyxiv.com/lodes...0dd62c3c50fc74)
This might not be much in regards to a small house (~300k), but honestly: Neither are 3 million.
You already have a foot in the door of the housing-game, which is worth a lot more than 3 million gil! If getting money to upgrade your house is the only reason for you to transfer, I would strongely suggest against it.
Getting gil is easy.
Getting a house isnt.
Even if your server has a lot of empty plots right now with the free transfer people might just come over and buy those up, so you could end up with 3 million gil more but no home at all in the end.