That dilapidated apartment building is scheduled to be demolished next month.
Usage
おんぼろ is a colloquial, slightly humorous word used to describe things that are old and falling apart. It modifies nouns directly with の (おんぼろの〜) and can also be used as a standalone noun (あのおんぼろ = that old wreck). It applies only to objects and structures, not to people.