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Do You Need a Permit to Remodel a Bathroom?

by | Jun 23, 2025 | Modern Interior Design Ideas

Bright bathroom with freestanding tub and wood vanity
6 min readJune 2025
Bathroom remodels are one of the most popular home remodels, adding functionality and value to your home. But before you select tiles or a new vanity, there is a very important step homeowners miss: determining whether or not you'll need a permit. The proper permits make your remodel code-compliant and safe, and save you from fines or hassle down the line if you ever have to sell your home. If you're planning bathroom remodeling in Scottsdale, understanding local codes will also save you time and money.
Modern spa-style bathroom remodel

Local Codes

Remodel permits aren't a one-size-fits-all deal. Permits and building codes are city, county, or municipal based. Something that would require a permit in one location would be a straightforward, no-permit-required situation in another. For instance, in larger cities with strict building regulations, even minor electric or plumbing alterations will require permits. In small towns or rural areas, permits may only be required for significant structural overhauls. Your first move before beginning a remodel should always be a trip to your city's website or a call to your city building department to clarify bathroom permit requirements. Professionals such as interior designers will also have experience in this area, thankfully. 
    Patterned tile walk-in shower design

    What Kinds of Bathroom Projects Require a Permit?

    Not all bathrooms need a permit to be remodeled. Cosmetic remodels, like painting the walls, installing new lighting, or installing a new mirror, generally do not require a permit. When you're performing construction that will change the configuration of the bathroom, however, permits generally are required.

    Plumbing and Electrical Work

    If you're moving plumbing lines, say, from a shower to a bathtub or moving the sink, a permit will probably be needed. So will changes to electrical work, too, like moving outlets farther apart or adding a heated floor system; these almost always need permits so that they'll be code-compliant for safety. Do I need a permit to remodel a bathroom? The answer is usually yes for large plumbing or electrical changes.

    Structural Changes

    Considering tearing out a wall or renovating your bathroom? Any change to a building, including moving load-bearing walls or putting in windows, likely require a permit to offer adequate support as well as comply with safety codes.

    Adding New Features

    Large projects such as the installation of a bathroom in an unfinished attic or basement will probably require a permit because such a project will entail electrical, plumbing, and structure work. Do you need a permit to renovate a bathroom that already exists? Major additions almost always require one.
    Modern bathroom with dual vanities

    How to Obtain a Bathroom Remodel Permit

    Getting permits seems scary, but you don't necessarily have to tackle it by yourself. Most interior designers and contractors in your region are familiar with the permit system, and they can draft the application for you. They will submit and get the plans approved in the right way and in a timely manner. Obtaining a permit usually involves submitting detailed design plans, an application fee, and one or more inspections that are done through the process during the remodel. A bathroom renovation permit ensures work on your bathroom is done to safety standards for you, and for whoever may eventually live there.
    Stylish vanity with round mirror lighted

    When is a Permit Not Required?

    While there are certainly aspects of a bathroom remodel that actually do require a permit, there are others you can accomplish without it. If the remodel is strictly cosmetic, such as refinishing cabinets, replacing faucets, or installing new tiles, you most likely will not have to ask permission. Whether the remodel contains elements of structural, plumbing, or electrical modifications will often be the deciding factor.  Before anything else, though, it is worth calling up your local building department and asking if there are some gray areas. Doing the work without having a permit as required can lead to fines, forced remodeling, or issues reselling your home.  

    Remodeling Responsibly

    Going through the process of determining whether you will or will not require a permit for your bathroom remodeling can be an extra step, but one that is absolutely worth it to ensure the validity and safety of your project. Remember, skipping permits is cheaper, but being thoroughly permitted gives your property an immense value and will enable you to have peace of mind. If you are planning to remodel your bathroom and have no idea where to begin, we’re here to help. We’ll guide you through the permit process so that it gets done right from the beginning to the end. We’ll also answer your questions so you don’t need to go through the day with headaches!  Discover More: How Long Does a Bathroom Remodel Take?
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    I oversee permitted bathroom remodels regularly across Scottsdale, Paradise Valley, and the broader Phoenix metro. The permit question comes up on nearly every project, and the answer depends on what specifically is being changed. Cosmetic updates generally do not require permits. Anything touching plumbing, electrical, or structure typically does. Here is how to think about it. — Lauren Lerner

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    Frequently Asked Questions

    Do you need a permit to remodel a bathroom in Scottsdale?

    In Scottsdale, bathroom remodels that involve moving or adding plumbing fixtures, relocating walls, changing the electrical panel configuration, or making structural changes require a permit. Cosmetic updates such as replacing tile, a vanity, or fixtures in the same location generally do not.

    What bathroom work requires a permit in Arizona?

    Any work that involves moving plumbing supply or drain lines, adding or relocating electrical circuits, structural changes including wall removal, or HVAC modifications requires a permit in most Arizona jurisdictions. A licensed general contractor can determine what your specific project requires.

    Can I remodel a bathroom without permits?

    Doing work that requires permits without obtaining them creates title and resale issues and means the work was not inspected. A design-build firm handles permitting as part of the standard scope, so you do not have to manage it yourself.

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    Lauren Lerner, principal interior designer at Living with Lolo

    Lauren Lerner

    Principal Designer, Living with Lolo

    Lauren Lerner is a luxury interior designer based in Scottsdale, AZ and the founder of Living with Lolo. Her work has been featured in Architectural Digest, House Beautiful, Vogue, Martha Stewart Living, The Wall Street Journal, and GQ. She specializes in high-end residential design across Scottsdale, Paradise Valley, Arcadia, and the greater Phoenix metro area.

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    About Living with Lolo

    Living with Lolo is a Scottsdale, Arizona-based luxury interior design and construction firm. The company specializes in full-service interior design, design-build remodeling, and construction-led renovations for high-end residential homes in Scottsdale, Paradise Valley, and Phoenix. Living with Lolo manages both interior design and licensed general contracting under one roof, guiding projects from concept through construction and white-glove installation.