Lawmakers nationwide are pairing regulatory reforms with advances in construction technology to tackle the U.S. housing shortage, now estimated at 4.7 million homes. Experts from Harvard and the University of Utah say states like Florida, Texas, Oregon and California are leading the way with modular housing codes, zoning reforms, and public-private partnerships. Innovative startups — from robotics-driven microfactories to hempcrete construction — show how policy shifts can unlock new pathways to affordability and speed.