<p>It depends on the wall. If it is load-bearing, you almost certainly need a permit. Almost all load-bearing wall removals require a permit, because the wall supports everything above it and building departments want proof the replacement beam can carry the weight. If it is not load-bearing, the answer depends on your city and on what is inside the wall. Opening up a floor plan is one of the most common renovation goals, which is why it shows up so often on lists like <a href="https://zermit.ai/blog/popular-home-renovations-2026-permits">the most popular home renovations of 2026</a>. It is also one of the projects where a quick permit check saves the most trouble.</p>
<h3>How Do I Know If a Wall Is Load-Bearing?</h3>
<p>Exterior walls always carry weight. Interior walls only do so if they sit over a beam or run perpendicular to the floor joists, and a wall that lines up with posts below or sits directly under the roof ridge should be treated as load-bearing. Original plans can help, but the only reliable answer comes from a structural engineer, and an architect or building designer can usually coordinate one. You can browse <a href="https://zermit.ai/contractors?category=11">architects and building designers</a> in Zermit's Find a Pro directory.</p>
<h3>What Does a Structural Engineer Cost?</h3>
<p>Less than most people expect compared with the cost of a mistake. HomeAdvisor reports an average of about $500 for a structural engineer, with a typical range of $350 to $800. An engineer also provides the stamped plans your building department will want. As one engineering firm puts it, the engineer's official, stamped plans are what you need to obtain a building permit.</p>
<p><strong>What About a Non-Load-Bearing Wall?</strong></p>
<p>Some cities exempt simple partition removal, and many do not. A home inspection resource notes that a non-load-bearing wall with no utilities is exempt in some jurisdictions, while walls with electrical, plumbing or HVAC that must be relocated need their own trade permits. Interior walls are rarely empty, and wiring runs through almost every one.</p>
<p>Los Angeles shows why you should ask first. LADBS publishes a policy on interior non-structural demolition permits, which address removal of interior non-load-bearing partitions and related systems. That suggests the city expects partition removal to be handled through its process in some situations.</p>
<p><strong>Which Other Permits Might Come With It?</strong></p>
<p>Moving wiring or pipes inside a wall usually triggers separate permits. Zermit's Los Angeles guides explain whether you need a permit for <a href="https://zermit.ai/permit-guides/california/los-angeles/electrical-remodel-do-i-need-a-permit-los-angeles">electrical work</a> or plumbing, and who is allowed to apply for each in the <a href="https://zermit.ai/permit-guides/california/los-angeles/electrical-remodel-who-can-apply-los-angeles">electrical eligibility guide</a>.</p>
<p>Wall removal often happens as part of a larger remodel. If you are opening a kitchen, read <a href="https://zermit.ai/blog/do-i-need-permit-for-kitchen-remodel-california">do I need a permit for a kitchen remodel in California</a>, and if you are changing several rooms at once, see whether you need one permit or multiple permits.</p>
<p><strong>What Happens If I Remove It Without a Permit?</strong></p>
<p>Beyond safety risks, you can face penalties. In Los Angeles, starting work without a permit triggers an investigation fee equal to double the permit fee, with a minimum of $400. Unpermitted structural work can also surface when you sell. Our guide to <a href="https://zermit.ai/blog/renovating-without-a-permit-california">what happens if you renovate without a permit in California</a> covers the full range of consequences.</p>
<h3>A Simple Way to Decide</h3>
<p>Start by confirming whether the wall is structural, using plans or an engineer. Then check whether it contains wiring, plumbing, gas or ductwork. If the answer to either question is yes, plan on at least one permit and an inspection. If both answers are no, ask your building department in writing whether a permit is required.</p>
<p>Before you apply, review common permit mistakes and use the <a href="https://zermit.ai/blog/permit-checklist-before-submitting">permit checklist</a> so your submission is complete the first time.</p>
<h3>Where Zermit Fits</h3>
<p>Moving a circuit or a drain line usually involves a permit that is simpler than a structural one. Zermit AI is an AI-powered permit platform for over-the-counter and like-to-like residential permits, so you can start an eligible application at <a href="https://app.zermit.ai/">app.zermit.ai</a>. To hire help, Find a Pro lists general contractors, <a href="https://zermit.ai/contractors?category=electrical">electrical professionals</a> and <a href="https://zermit.ai/contractors?category=13">plumbers</a>.</p>