By law, anything that is NOT personal property is real property and anything that is NOT real property is personal property.
This is a loop. So we have to firstly define what a real property is.
The followings are real properties:
- Land
- Those affixed to the Land
- Those are appurtenant or incidental to the Land
- Those are immovable according to the law
So Land is the center of the discussion.
Land:
Land includes the land surface, of course. In additional to that, it includes a reasonable amount of airspace above it. How do you define "reasonable amount"? It is up to the court to judge upon dispute. The spirit is to let the land owner to have quiet enjoyment. It also includes anything from the surface to the earth center! So it means that any minerals underneath is a part of the land. And if you own the land, you are entitled to those mineral as well.
Affixed to the land:
- Things permanently resting on the land
- Things permanently attached to a building
- Things attached to the land by roots
Note: grown crops are NOT real properties but personal properties
Appurtenant to the land:
These are something that is used by the land for its benefit and goes with the land. For example, the rights over adjoining land for light. If your neighbour has a big tree casting shadow on your solar panel, is this an intrusion to your right?
Immovables:
If a personal property is determined by the court to stay with the land, that property becomes a real property,