Permits and inspections
Do you need a permit for a walk-in tub or roll-in shower in Arizona?
Swapping a tub is not the same as moving a drain or adding a circuit. Here is how Arizona cities and counties decide, what the City of Phoenix lists, and a free tool that turns your project into questions for your building department.
- Since 2012
- Installed in as little as one day
- Install or supply-only, statewide
Direct answer: In Arizona, your city or county decides. In Phoenix, replacing an existing plumbing fixture in place does not need a permit, but adding or relocating a tub, new electrical circuits and wall changes do. Most jetted walk-in tubs need new circuits, and most curbless showers move a drain, so expect a permit. Your ROC-licensed installer should pull it.
Who decides
Who decides whether you need a permit in Arizona?
There is no single statewide list. If your home is inside city or town limits, that city or town's building department decides, using the building codes it has adopted and its own local amendments. If you live outside city limits, the county does. That is why two neighbors a mile apart can get different answers: one is in town, the other is in an unincorporated part of the county.
Counties say the same thing in their own words. Pima County's building page, for example, says that "remodeling" requires a building permit "unless exempt" under its list of example projects, and warns that a permit may still be required even when a project looks like one of the examples. Maricopa County handles permits for unincorporated areas through its Planning and Development permitting services. Smaller cities, such as Show Low, take permit applications at City Hall and send homes outside city limits to the county.
Sources, checked October 22, 2026: Pima County, Building; Maricopa County, Construction Permit Information; City of Show Low, permits and applications.
Practical tip: before you call anyone, look up whether your address is inside city limits. Your property tax bill or your county assessor's parcel page usually shows the taxing jurisdiction. Then you know which office to ask.
Phoenix
What does the City of Phoenix say needs a permit?
Phoenix publishes a short homeowner brochure, the Home Owner's Guide to Residential Permits, and still links it from its residential additions and remodels page as the "Residential Single Family Construction Permit Guide." It is dated October 2011, and it says plainly that it is a guide and "does not include all projects that require permits." Even so, it is the clearest official list we have found in Arizona, and the lines that touch a bathroom project are below.
| Phoenix guide says | Permit? | Where it shows up in a tub or shower job |
|---|---|---|
| Replace existing plumbing fixtures | Not required | A new tub or shower set in the same spot, on the same drain and supply lines |
| Sinks, toilets or tubs to be added or relocated | Required | Moving the drain for a curbless shower, or moving the tub to another wall |
| Electrical updates/rewires | Required | New dedicated circuits for jets, an inline heater, a heated seat, a fan or new lighting |
| Wall removal and/or relocation | Required | Opening a wall to enlarge the shower, or reframing to widen a doorway |
| Projects involving gas line | Required | Moving or resizing a gas water heater's gas supply |
| Replacement of existing water heaters by a licensed contractor | Not required | Swapping the water heater for one that keeps up with a deep tub |
| Water softeners | Required | Adding a softener to protect jets and drain valves from hard water |
| Carpet and tile; paint; minor repairs of non-structural items | Not required | Finish work, new flooring outside the shower, trim and hardware |
Source: City of Phoenix Planning and Development, Home Owner's Guide to Residential Permits, TRT/DOC/00576R (October 2011), linked from the city's Residential Additions and Remodels page; both checked October 22, 2026. Code information: 602-262-7884. General information: 602-262-7811.
The city's remodel page adds a useful detail: if the proposed work is minor, "it may be possible to issue an over-the-counter permit." In other words, a permit does not always mean weeks of plan review.
Walk-in tubs
Which parts of a walk-in tub install usually need a permit?
A plain soaking walk-in tub that drops into the old tub's space, on the same drain, is the closest thing to a fixture swap. Most walk-in tubs are not that simple, for three reasons.
- Electrical. Air jets, water jets and inline heaters run on electricity, and most models call for their own GFCI-protected circuits. Adding a circuit is electrical work, and in Phoenix "electrical updates/rewires" need a permit. Our sister site explains walk-in tub electrical requirements in detail.
- Drain position. Walk-in tubs come with the drain on the left or right end. If the new tub's drain does not line up with the old one, the plumber moves it, which turns a swap into a relocation.
- The opening. Some bathrooms need the doorway widened or a wall trimmed to get a one-piece tub inside. That is framing work.
Our Arizona installation guide walks through install day, and our parent company's walk-in tub installation page explains how its crews confirm permit needs with your city before scheduling.
Roll-in showers
Does a tub-to-roll-in-shower conversion need a permit?
Usually, yes. A true roll-in shower has no curb, so the shower floor has to slope to a drain while staying level with the bathroom floor at the entry. In a slab-on-grade home, that often means cutting the concrete and moving the drain toward the middle or the front of the shower, which is a relocation. Many conversions also add a fan or lighting circuit and open a wall for blocking behind grab bars and a fold-down seat.
A low-threshold shower pan that sits on the existing drain, with a small beveled lip, can avoid the slab cut. It is a good choice for people who walk with a cane or walker, but it is not a wheelchair roll-in. Our Phoenix roll-in shower page compares the options with ADA sizes, and our Arizona roll-in shower guide covers the rest of the state.
Free tool
Permit question builder
Tick what your project includes. You get the matching lines from the City of Phoenix homeowner permit guide and a short list of questions to ask your city or county. Nothing is sent anywhere.
Based on the City of Phoenix Home Owner's Guide to Residential Permits (TRT/DOC/00576R, dated October 2011, still linked by the city as of October 22, 2026). It is a guide, not a legal ruling; the city says it "does not include all projects that require permits."
Responsibility
Who should pull the permit: you or your contractor?
For a tub or shower job, the licensed contractor normally applies for the permit, schedules the inspections and is named on the permit as responsible for the work. That is part of what you pay a licensed installer for. Before work starts, ask for three things:
- The contractor's Arizona ROC license number, which you can look up at roc.az.gov (our ROC license guide shows how)
- The permit number, or a written note from the contractor explaining why no permit is needed for your exact scope
- Who will be home for each inspection, and roughly when
Be cautious if an installer suggests skipping a permit to save time, or asks you to pull it in your own name. Phoenix's guide lists what can happen when work is done without one: a citation, higher permit costs with fines and extra fees, removal of work at the owner's cost, issues when you sell, and the possibility that your homeowners insurance will not cover problems caused by the unpermitted work.
Source: City of Phoenix, "The costs of working without a permit", checked October 22, 2026.
Your house
How can you check a home's permit history in Phoenix?
If you are buying a home for a parent, or wondering whether a past bathroom remodel was permitted, the City of Phoenix lets you search permit history by address. Its guide says the online Building Permit Search covers permits from 1995 to the present, and that older records are available at the Records Center on the third floor of City Hall, 200 W. Washington Street. Other cities and counties keep similar records; Maricopa County's permitting page notes its own online tools for unincorporated areas.
A permitted, inspected bathroom is easier to explain to a future buyer. Keep the final inspection record with the tub's warranty papers.
Communities
Do HOAs and 55+ communities add their own rules?
Often, but about different things. Homeowners associations rarely review interior plumbing, yet many care about contractor parking, work hours, gate access, dumpster placement and noise. In some 55+ communities the association also needs the contractor's license and insurance on file before the crew arrives. A permit from the city does not replace those rules, and the association's approval does not replace a permit. Our HOA and 55+ community guide has a checklist and a sample note to send the office.
Manufactured homes and park models can follow a different path again. Our manufactured home guide explains what to check before you order.
Checklist
What should you ask your building department?
- Is my address inside your jurisdiction, or should I call the county?
- Does replacing a bathtub with a walk-in tub on the same drain need a permit?
- Does a new dedicated circuit for tub jets or a heater need an electrical permit?
- Does moving a shower drain or cutting the slab need a plumbing permit, and is plan review required?
- Can this job get an over-the-counter permit?
- Which inspections are required, and does someone need to be home?
Or let us do it. Walk In Tubs Arizona, an Aging Safely Baths company, quotes the job in writing first, including any permit work, and our installers handle the paperwork. If you are using your own contractor with supply-only delivery, we send the spec sheets and rough-in details your contractor and inspector will ask for.
FAQ
Arizona bathroom permit questions
Do I need a permit to replace a bathtub with a walk-in tub in Arizona?
It depends on your city or county and on the work. The City of Phoenix lists replacing existing plumbing fixtures as work that does not need a permit, but new electrical circuits, moved drains and wall changes do. Many walk-in tubs with jets or heaters need new circuits, so a permit is common.
Do I need a permit to convert a tub to a roll-in shower in Phoenix?
Usually. A curbless shower often means moving the drain and cutting the slab, and Phoenix lists sinks, toilets or tubs that are added or relocated as permit work. Minor jobs may qualify for an over-the-counter permit. Your licensed installer should confirm and pull it.
Who pulls the permit, me or the contractor?
In most tub and shower jobs, the licensed contractor pulls the permit and schedules the inspections, because the permit holder is responsible for the work. Ask for the permit number before work starts, and check the contractor's Arizona ROC license at roc.az.gov.
Does installing grab bars need a permit?
The Phoenix homeowner guide does not name grab bars. It lists minor repairs of non-structural items, tile and paint as work that does not need a permit. Grab bars must be anchored into blocking or studs, so if the wall is opened to add blocking, ask your city whether that changes anything.
Does a water softener need a permit in Phoenix?
Yes. The City of Phoenix homeowner permit guide lists water softeners among home improvements that require permits. That matters in Arizona, where many walk-in tub owners add a softener to protect jets and drain valves from hard-water scale.
What happens if bathroom work is done without a permit?
The City of Phoenix lists possible citations, higher permit fees and fines, removal of work at the owner's cost, problems when you sell the house, and the risk that your homeowners insurance may not cover issues caused by unpermitted work.
Want the permit handled for you?
Send photos and measurements for an itemized written quote that includes any permit work.