America's ADU Boom: What 2.8 Million Permits Reveal About the Housing Solution
ADUs, or Accessory Dwelling Units, are small secondary homes built on single-family lots—and they're becoming one of the most effective tools to fight America's housing shortage. Using data from 2.8 million ADU permits, this post explores how ADUs help expand housing supply, which policies accelerate or stifle growth, and which states are leading the way in 2025.
Morgan Friberg
Head of Marketing