さん世帯 せたい住宅 じゅうたくじゃありません
sansetaijūtakujārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 3世帯住宅

1. It is not a three-generation household.; It's not a multi-generational home.

Negative
Polite
Terminal Form