Route-Level Layouts
Add a layout that applies only to a specific route and its children.
Route-Level Layouts is a free Sveltejs Academy lesson on CoddyKit — lesson 2 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Sveltejs Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Specific Layouts
You can add a layout that applies only to a specific route and its children by placing +layout.svelte in that route's folder.
Stacking
Nested layouts stack: the root layout wraps the section layout, which wraps the page.
Per-Section Nav
An admin section can have its own sidebar layout while inheriting the global header.
Layout Data
Each layout can load its own data; data flows down to nested layouts and pages.
Reusing Layouts
Avoid duplicate markup by sharing layouts at the deepest common folder.
Combining with Groups
Mix groups and route-level layouts for advanced architectures.
Error Pages
Each layout can have its own +error.svelte for section-specific errors.
Server vs Universal Layouts
+layout.server.js runs only on the server; +layout.js runs everywhere.
Composition
Think of layouts like composable shells. Each adds context, styling, or data to its children.
Inheritance Chain
Every page renders inside all ancestor layouts. Drill down to leaf pages.
Performance
Layouts are cached and reused across navigations within their scope.
Quick Check
How do nested layouts work?
Recap
Add +layout.svelte per folder for section-specific UI; they stack with ancestor layouts automatically.
Frequently asked questions
Is the “Route-Level Layouts” lesson free?
Yes — the full text of “Route-Level Layouts” is free to read here on the web, and the Sveltejs Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Sveltejs Academy course, upgrade to CoddyKit PRO.
What will I learn in “Route-Level Layouts”?
Add a layout that applies only to a specific route and its children. You practise Sveltejs Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Sveltejs Academy?
No prior experience is required. Sveltejs Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 2 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Route-Level Layouts” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Sveltejs Academy lesson?
Yes. Every Sveltejs Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.