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Portland and the federal government

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Veterans Day closure

Offices are closed Tuesday, Nov. 11, to observe Veterans Day.

Residential decks

Adding a deck is a great way to enjoy the outdoors and boost your home’s value. These pages explain what permits you need to build a deck at a one- or two-family home, and how to apply. Use the navigation menu to find out more about each step.

Get your custom project guide

Overview for getting a permit

Get an overview of the permit process and why permits are important. Our goal is to help you apply the right way the first time.
  1. Research

    Find out if you'll need a permit and if you can build a deck on your property.

    We'll show you how to research your property. What you find will help you figure out what forms and requirements apply to your project.

    📝 Take notes as you go. It’ll help later when you apply for permits or talk to staff.

  2. Prepare

    Gather and complete all necessary forms to apply for your permit.

    You’ll also need to create a site plan, elevation drawing, and structural plans for your deck.

    Learn how to prepare all the necessary materials for your application.

  3. Apply

    Once you're ready, submit your application through our online system, DevHub.

    We’ll contact you if we need more information or if you're ready to begin your project.

    📝 Be sure to respond quickly to keep your application moving.

    Get more details on submitting your application and paying your fees.


    Ready to apply? Visit DevHub.

  4. Get your permit

    After you pay and get your approved plans and permit, you can start working on your deck project.

    For some projects, you may need inspections before you start construction.

    Learn more about what to do before you start the work.

  5. Get inspections

    At various points during the construction process, you'll need to get inspections.

    All projects will need a final inspection before the building permit is officially complete.

    Get details on scheduling an inspection and what to expect.


Why get a permit?

Getting a permit helps protect your safety, your investment, the environment, and your community.

  • Permits ensure that work is inspected and meets minimum safety codes. This reduces the risk of fire, flooding, or structural issues.
  • Inspections can catch small problems early, helping you avoid costly repairs or safety hazards later.
  • If you plan to sell your home, unpermitted work can delay the sale. Buyers, realtors, or lenders often require that all work be properly permitted and inspected.
  • Some insurance companies may not cover homes with unpermitted work.
  • It’s the law. The State Building Code requires permits for certain types of work. 

Contact

Permitting & Development

phone number503-823-7300 The phone is answered Monday through Friday from 8 a.m. to 5 p.m. Please leave a message if you call outside of those hours.
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