I have learnt that I can stay in Gran Canaria for 3 months as a tourist, basically on holiday, but if I want to stay longer, rent or buy a property, or work there I need to have a Spanish NIE number.
What is an NIE number?
NIE Spain is translated as the Foreigner’s Identification Number (or Número de Identificación de Extranjero, NIE number).
The NIE number is the legal number assigned by the Spanish National Police to foreign people who don’t have Spanish citizenship, so that you can carry out legal activities in Spain, such as the ones mentioned below.
The actual format of the NIE number certificate is a A4 white sheet which contains your name, surname, date of birth, city and country of birth, and the unique NIE number, of course.