Questions about building boundaries typically arise most often in a condominium context where boundary lines between common area and units, between units and exclusive use areas and between exclusive use areas are relevant to maintenance. In non-condominiums, building boundaries may be relevant to encroachment onto an adjoining owner’s property, onto an easement or onto a setback required by the governing documents or local law. Making such determinations requires an examination of a condominium plan, tract map or parcel map. It may also require some type of inspection in the field using a licensed land surveyor or engineer.