Accelerated generational, social, and economic changes in recent years have driven a booming new residential rental market that coexists with the supply of conventional residential housing. Holiday housing has also undergone a transformation, especially in the wake of the COVID 19 pandemic and, in Spain, severely affected by travel restrictions. Today there is new capital available to invest in housing, not only in free rent but also in affordable housing. Many cities are currently developing public programs to increase the supply of this product. This is a spectacular moment full of opportunities for the real estate industry.