An aerial view of homes under construction at a housing development on January 31, 2019 in Petaluma, Calif. As housing prices surge around the country, Democratic presidential candidates are offering plans to address the shortage of affordable homes and apartments.

An aerial view of homes under construction at a housing development on January 31, 2019 in Petaluma, Calif. As housing prices surge around the country, Democratic presidential candidates are offering plans to address the shortage of affordable homes and apartment