What Is a Building Permit, and Why Do You Need One?

You’ve been dreaming of a renovation, home addition, or even building a brand-new home. But then the term “building permit” comes up, and you’re not sure where to start. Don’t worry you’re in the right place!

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You’ve been dreaming of a renovation, home addition, or even building a brand-new home. But then the term “building permit” comes up, and you’re not sure where to start. What is it? Why is it important? And how can you avoid delays?

This blog will walk you through the basics so you’ll know what to expect. Plus, I’ll share a few tips that will make your design and construction team love you for being so prepared! My goal is to give you the information you need to make confident decisions and protect your investment.

First, Do You Need a Building Permit?

Determining whether your project requires a building permit is a crucial first step. Generally, permits are needed for:

  • Structural Changes: Modifying your home’s layout, such as removing or adding walls.
  • Additions: Building new structures like decks, garages, or extra rooms.
  • New Construction: Constructing an entirely new home.

On the other hand, cosmetic updates typically don’t require a permit. These include:

  • Painting walls.
  • Installing new flooring.
  • Replacing cabinets.

However, regulations can vary between municipalities. Some cities have stricter rules than others. For example, in Vancouver, the city’s website outlines specific instances when a building permit is required. You can review their guidelines here: City of Vancouver Building Permit Guide.

Recommendation: It’s always a good idea to contact your local building department directly. A simple call where you say, “I’m planning on doing [a renovation that involves x,y,z ]; do I need a building permit?” can provide some clarity and prevent future issues. This proactive approach ensures you’re following local regulations and can help avoid delays in your project. -That said if you are reading this and have already hired a design or construction team they should either know or be confirming this information for you as part of the process.

Who Prepares the Permit Documents?

Your Design or Architectural Team

For most major renovations, your design or architectural team will handle creating the building permit drawing package. This includes:

  • The current layout of your home.
  • A demolition plan (if anything is being removed).
  • Plans for the new construction.
  • Exterior elevations and building sections (when applicable).
  • Glazing calculations (when applicable)

If you’re adding square footage to your home, they’ll also prepare zoning analysis and complete a site plan after a site survey is provided.

Just incase I lost you with “zoning analysis”, “site plan” and “site survey”…

A zoning analysis checks the rules for your property to make sure your project (like that addition you’ve been dreaming about or the new mancave—because who doesn’t want a backyard golf simulator?) meets local requirements before applying for a permit.

A site survey measures and maps your property, showing boundaries, structures, and features like trees or slopes. It’s like creating a detailed snapshot of your land to ensure everything is accurate before planning any changes.

A site plan is needed when you’re planning a residential addition because it maps out how everything fits on your property—like where the house is, where the new addition will go, and key details like setbacks and utilities. It’s an important step to ensure your plans follow city rules and are ready for your building permit drawing package.

Your Construction Team

In addition to the design plans, some projects need extra documentation, like:

  • Structural engineering reports.
  • Arborist reports (if trees are affected).
  • Asbestos testing (for older homes).

Your contractor will usually coordinate with specialists to get these documents.

PS if you haven’t downloaded it yet, we go through more about how to prepare for your renovation in our free download – The 6 Steps to take before hiring for your renovation.

Who Submits the Permit?

Here’s where things vary. Most of the time, your contractor will submit the building permit package to the city. This helps them stay in the loop in case the city has questions or requests changes.

However, some design or architectural teams can manage the whole submission process for you, which is a great option if you prefer to keep things simple.

For new home builds, architectural firms typically take charge of submitting the permit and managing all the details. Their experience ensures everything runs smoothly.

What Happens If Your Project Faces Challenges?

Sometimes, your project might not meet certain zoning rules. For example, you might want to build a wheelchair ramp that encroaches on your property’s setback, or you need to keep a pre-existing structure that doesn’t meet current regulations.

In these cases, you might need to apply to the Board of Variance (BOV). This involves presenting your case to the city to request an exception. While it adds time and cost, it’s often the best way to move your project forward.

How You Can Prepare

To make sure everything goes smoothly, here’s what you can do:

  1. Ask Your Design Team These Questions:
    • Can you create the building permit drawing package?
    • Do you handle the submission process, or will the contractor manage it?
    • Do you work with specialists (like engineers or arborists) if needed?
  2. Work With an Experienced Team:
    Established design and construction teams know the ins and outs of the building permit process. They also have trusted partners who can handle additional requirements, which saves you time and money.
  3. Check With Your City’s Building Department:
    Take a few minutes to confirm your city’s specific requirements. This small step can help you avoid surprises later.

Why Does This Matter?

Understanding the building permit process puts you in control. You’ll avoid unnecessary delays, build trust with your design and construction team, and protect your investment. – Which is ultimately the goal, isn’t it?

Whether you’re planning a renovation, addition, or new build, taking these steps will set you up for success.

If you’d like more tips on what to know before you hire for your renovation. Check out these past blog posts:

Looking for a design team for your project? You can contact us here to see if we are a good fit. That or, check out our resources page if you are looking for a more of an informed DIY approach to your small project design.

Good luck with your renovation or new build!


Hi! 👋 I’m Rebecca. Since 2012, I’ve helped more than 175+ homeowners create beautiful and functional spaces. This blog was created as a resource to empower you to transform a room, a floor, or your entire home with the guidance and expertise of a certified residential interior designer. Want even more tips, how-tos and inspo right to your inbox? Join the Align ID Community Today.