Casita Bills HB2720 & HB2928

Arizona's ADU laws represent a genuine expansion of your property rights—but they have a boundary at the HOA fence line. Understanding that distinction isn't a reason to abandon your casita plans, it just means you need the right team in your corner.

For years, building a backyard casita, guest house, or accessory dwelling unit in Arizona was an exercise in navigating a fragmented patchwork of local zoning codes. Whether you could build one and how large it could be depended almost entirely on which city or municipality your property sat within. That reality changed dramatically when Arizona passed a series of landmark bills collectively known as the "Casita Bills," most notably HB 2720 and its successor legislation HB 29