低層 ていそう住居 じゅうきょ専用 せんよう地域 ちいきであれば
teisōjūkyosen'yōchiikideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 低層住居専用地域

1. If it is a low-rise residential exclusive district.; If low-rise residential exclusive districts exist.

Ba Conditional
Law