Declaring and registering a new building at the Property Registry in Spain is not a legally demandable action since for constructions as well as in general for several other real-estate transactions the rule is of voluntary registration. However, as for the case of registration of several other actions at the Property Registry, it is normally advisable, or even necessary, to do it when owners face a transmission, external financing or other transactions such as subdivision of the built area (2009-07-01)