Taken from the gear discord:

How to load your house in 2 ticks:

• Make sure your house only has one floor, delete your dungeon/upper floor.
• Your layout should be 4x4, with 16 total rooms.
• You will also need to place your house portal in the same position as shown on the picture (the 6th tile of the 4x4 PoH area).
• Make sure every room in the 4x4 is in the exact layout that you prefer, BEFORE you start moving it around
• Your goal is to get the least amount of green around your house (shown in 3rd party client minimaps) as shown in this picture: https://imgur.com/3VkfkWN
• You will have to find exactly where to put the house on your own, since it depends on how your house is currently setup, simply placing it in the middle won’t work. A hint however would be to move the whole house southwest in most cases, as that seems to work.