By Matthew A. Quick Before acting on the hope of reconstructing your condo, consider what the court held in Picerno v 1400 Museum Park Condominium Association. Owners of adjacent condo units sought to construct a common front door in the hallway of the condo complex and connect their two entrances. The court held that particular modification would diminish ownership interests of other condo unit owners, per declarations that each owner has an undivided interest in common elements. The Condominium Property Act requires that renovations are subject to limitations in condominium instruments, therefore the condo owners that wanted to renovate should have complied with the requirements of the condo declarations, which in this case, were to seek approval of board and of other condo unit owners.