Formal:
* Notre maison: This is the most common and formal way to say "our house."
* La maison que nous habitons: This literally translates to "the house that we inhabit," and is more formal and slightly less common.
Informal:
* Notre baraque: This is a more informal and casual way to say "our house," similar to "our place" in English.
* Chez nous: This translates literally to "at our place," and is a very common and informal way to refer to your house.
In addition to the above, you can also say:
* La maison de notre famille: This translates to "the house of our family" and is used when you want to emphasize the family aspect of the house.
The best way to choose the right phrase is to consider the context and the formality of the situation.