The Seguro Decenal became legally obligatory in Mai 2000 and is a 10-year warranty intended to protect later owners of a construction.
Those involved in the construction process are liable towards the owner of the construction for faults and defects. As many smaller companies have weak capital bases this insurance was made obligatory.
A construction is therefore not legalized by the authorities unless the Seguro Decenal was contracted prior to the construction start. Constructions to be lived in by the promoters themselves are exempt.