Can Spain only invest in immigrants?

According to the current immigration policy, the applicant buys a property of not less than 500,000 euros in Spain and proves that he does not work in Spain and has financial resources, thus obtaining a residence permit. You can apply for permanent residence in Spain after five years and enjoy national treatment. You can apply for Spanish citizenship after ten years.

Another way is a non-profit residence visa: there is no compulsory purchase, and owning real estate can increase the success rate.