diff --git a/.changeset/bright-adults-lie.md b/.changeset/bright-adults-lie.md
new file mode 100644
index 000000000000..0b196723c26c
--- /dev/null
+++ b/.changeset/bright-adults-lie.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-netlify': patch
+---
+
+fix: populate `App.Platform` with `context` property
diff --git a/packages/adapter-netlify/ambient.d.ts b/packages/adapter-netlify/ambient.d.ts
new file mode 100644
index 000000000000..662524608f6d
--- /dev/null
+++ b/packages/adapter-netlify/ambient.d.ts
@@ -0,0 +1,9 @@
+declare global {
+	namespace App {
+		export interface Platform {
+			context: import('@netlify/types').Context;
+		}
+	}
+}
+
+export {};
diff --git a/packages/adapter-netlify/index.d.ts b/packages/adapter-netlify/index.d.ts
index 6bdc8db882dc..580b30cb1060 100644
--- a/packages/adapter-netlify/index.d.ts
+++ b/packages/adapter-netlify/index.d.ts
@@ -1,3 +1,4 @@
 import { Adapter } from '@sveltejs/kit';
+import './ambient.d.ts';
 
 export default function plugin(opts?: { split?: boolean; edge?: boolean }): Adapter;
diff --git a/packages/adapter-netlify/package.json b/packages/adapter-netlify/package.json
index 0dd62331b125..f5f83047cc66 100644
--- a/packages/adapter-netlify/package.json
+++ b/packages/adapter-netlify/package.json
@@ -44,6 +44,7 @@
 	},
 	"dependencies": {
 		"@iarna/toml": "^2.2.5",
+		"@netlify/types": "^2.0.2",
 		"esbuild": "^0.25.4",
 		"set-cookie-parser": "^2.6.0"
 	},
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7741f57fcb27..4fa8dd947601 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -147,6 +147,9 @@ importers:
       '@iarna/toml':
         specifier: ^2.2.5
         version: 2.2.5
+      '@netlify/types':
+        specifier: ^2.0.2
+        version: 2.0.2
       esbuild:
         specifier: ^0.25.4
         version: 0.25.9
@@ -2522,6 +2525,10 @@ packages:
     resolution: {integrity: sha512-0Hl6POpkEs3aan8T+EQvPIj5/gNc+64nwNv93VY4JoxFSrLPKYWmUyXJhT9lG93VxwGfmbxrCOV8U4sq2eWgTw==}
     engines: {node: '>=18.0.0'}
 
+  '@netlify/types@2.0.2':
+    resolution: {integrity: sha512-6899BAqehToSAd3hoevqGaIkG0M9epPMLTi6byynNVIzqv2x+b9OtRXqK67G/gCX7XkrtLQ9Xm3QNJmaFNrSXA==}
+    engines: {node: ^18.14.0 || >=20}
+
   '@netlify/zip-it-and-ship-it@12.1.4':
     resolution: {integrity: sha512-/wM1c0iyym/7SlowbgqTuu/+tJS8CDDs4vLhSizKntFl3VOeDVX0kr9qriH9wA2hYstwGSuHsEgEAnKdMcDBOg==}
     engines: {node: '>=18.14.0'}
@@ -8464,6 +8471,8 @@ snapshots:
 
   '@netlify/serverless-functions-api@2.5.0': {}
 
+  '@netlify/types@2.0.2': {}
+
   '@netlify/zip-it-and-ship-it@12.1.4(rollup@4.50.1)':
     dependencies:
       '@babel/parser': 7.27.5