Mesa's rule, not a blog's guess, decides whether a pool needs a permit. Confirm the live page before you budget or start.
Quick answer
Yes for an in-ground pool, per the City of Mesa Residential Construction page, retrieved 2026-08-18.
The city lists "Constructing or filling-in an inground swimming pool" under work that needs a construction permit.
For swimming-pool submittals the same page asks for a contractor licensure verification form, a fully dimensioned site plan, architectural, structural, and engineer-sealed drawings, and electrical, plumbing, and mechanical plans. Apply through DIMES.
What the city does not say
That page does not publish a dollar fee for a pool. Fees are based on estimated construction costs and are billed after review. It does not list a separate above-ground rule on that page, so do not invent one. Ask Permit Services at 480-644-4273 for a scope the page does not name.
How this shows up in our data
Mesa does not label the trade on the permit. A firm on the Mesa rankings appears when it holds the matching ROC class and has pulled Mesa permits. Service-and-repair class CR-6 is not the same as a construction class. Ask which class will be on the job.
For the homeowner
Ask who pulls the permit and in whose name. Ask for the ROC class, not only the company name. Verify it on the official search. Arizona's private-pool barrier rules still apply after the city issues the permit.
For the contractor
File through Mesa DIMES. We are not the city and we do not issue permits or compute fees. The city's fee PDF is the live number once review finishes.