It's not a consumable because you can't duplicate a piece of land at a specific location. House prices go up because they are located on land that is becoming more desirable.
I dont understand how that is relevant to something being a consumable. A consumable means it can be consumed. mine a resource or use the soil, etc ., ... and you're using it up.
Land and houses are intrinsically linked. You cannot consume a house without also consuming the land it sits on. Therefore you can't realistically call a house a consumable.
