Need to store a 20 foot shipping container in duma area secure will be full - Urgent

I will be in Duma sometime in April; I need a secure place to put my full 20 foot shipping container,
My house was finally sold, but just a mere pittance remaining once everybody got their share, my aim is Valencia, not sure if there is cheap apartments or houses there?? When I say cheap I mean around 6k to 10k