For close to a decade, the two-story bank at 307 Bloomfield Avenue in Caldwell has sat empty, despite its location downtown along one of Essex County’s busiest corridors. The building, which is situated at the corner of Personette Street, used to contain a Valley National Bank location, but has seen little use in the time since the branch was shuttered. However, the days of this centrally located structure sitting empty are coming to an end as construction begins on a major renovation and expansion.