How do you say a big house in french?

There are a couple of ways to say "a big house" in French, depending on the emphasis you want to put on the size:

* Une grande maison: This is the most literal and common translation. "Grande" means "big" and "maison" means "house."

* Une maison immense: This emphasizes the immensity of the house. "Immense" means "huge" or "vast."

* Une maison spacieuse: This focuses on the spaciousness of the house. "Spacieuse" means "spacious" or "roomy."

You could also use other adjectives like "large," "vaste," or "gigantesque" depending on the context.