Building an ADU or casita in Phoenix involves two separate approval steps before construction can start — and most people don't know that until they're already behind. Here's exactly how the process works, what the size and setback rules are, and what to expect from the City of Phoenix permitting process.

Getting a building permit in Phoenix just got a new front door — the city launched SHAPE PHX in 2026, replacing their old online system. Whether you're pulling a permit for a home addition, a remodel, or a commercial tenant improvement, here's how the process works and what to expect before you submit.

How to get a building permit in Mesa Arizona. This guide shows our clients what is needed to apply for and obtain a permit in Mesa.