Because Alta Dena contractors tripled their prices for work in new homes in anticipation of developers. The homeowners who live in the area are either established old families who don’t have money but lived in the area for a few generations or are part of the CalTech/JPL crowd that don’t worry about money. No one can afford to rebuild even if they wanted to. Not even the engineers. My friends lost their jobs and homes in the same year and they can’t go back. DOGE eviscerated JPL.