Every self-respecting real estate agency in Spain has its own website, where objects for sale or lease are published. However, in addition to such sites in Spain, there are several portals that are not tied to specific firms, where both private individuals and professional agents place their ads. It is to such a portal that I want to draw your attention - International Real Estate Platform https://realting.com/property-for-sale/spain . This is convenient because it allows you to quickly and easily analyze the market situation, evaluate offers in your area, calculate the average price per square meter of a similar housing, etc.