The body of a 50 year old foreign national who it believed may have died a few days ago, was found on Tuesday by members of the Cabildo fire services.
The firemen entered the house on Calle Acacia, Costa Teguise after an alert by the emergency services.
Although for the moment violence has been ruled out, little is known about the cause of death.
According to the firemen they saw the person lying on a bed through a window of the house.
After gaining access with a doctor who then declared the man dead.