diff --git a/.changeset/funny-paws-divide.md b/.changeset/funny-paws-divide.md
new file mode 100644
index 0000000000..30b632fd6e
--- /dev/null
+++ b/.changeset/funny-paws-divide.md
@@ -0,0 +1,5 @@
+---
+"@react-router/dev": patch
+---
+
+Prevent typegen with route files are outside the app directory
diff --git a/contributors.yml b/contributors.yml
index 4fe526a6b8..7d04566b0d 100644
--- a/contributors.yml
+++ b/contributors.yml
@@ -371,6 +371,7 @@
 - vonagam
 - WalkAlone0325
 - whxhlgy
+- wilcoxmd
 - willemarcel
 - williamsdyyz
 - willsawyerrrr
diff --git a/packages/react-router-dev/typegen/generate.ts b/packages/react-router-dev/typegen/generate.ts
index 789129d445..cf89379e33 100644
--- a/packages/react-router-dev/typegen/generate.ts
+++ b/packages/react-router-dev/typegen/generate.ts
@@ -170,82 +170,89 @@ export function generateRoutes(ctx: Context): VirtualFile {
 export function generateRouteModuleAnnotations(
   ctx: Context
 ): Array<VirtualFile> {
-  return Object.values(ctx.config.routes).map((route) => {
-    const filename = getRouteModuleAnnotationsFilepath(ctx, route);
+  return Object.values(ctx.config.routes)
+    .filter((route) => isRouteInAppDirectory(ctx, route))
+    .map((route) => {
+      const filename = getRouteModuleAnnotationsFilepath(ctx, route);
 
-    const parents = getParents(ctx, route);
+      const parents = getParents(ctx, route);
 
-    const content = ts`
-      // Generated by React Router
+      const content = ts`
+        // Generated by React Router
 
-      import type {
-        Params,
-        RouteModuleAnnotations,
-        CreateLoaderData,
-        CreateActionData,
-      } from "react-router/internal";
+        import type {
+          Params,
+          RouteModuleAnnotations,
+          CreateLoaderData,
+          CreateActionData,
+        } from "react-router/internal";
 
-      ${parents.map((parent) => parent.import).join("\n" + "  ".repeat(3))}
-      type Parents = [${parents.map((parent) => parent.name).join(", ")}]
+        ${parents.map((parent) => parent.import).join("\n" + "  ".repeat(3))}
+        type Parents = [${parents.map((parent) => parent.name).join(", ")}]
 
-      type Id = "${route.id}"
-      type Module = typeof import("../${Pathe.filename(route.file)}.js")
+        type Id = "${route.id}"
+        type Module = typeof import("../${Pathe.filename(route.file)}.js")
 
-      export type unstable_Props = {
-        params: Params[Id]
-        loaderData: CreateLoaderData<Module>
-        actionData: CreateActionData<Module>
-      }
+        export type unstable_Props = {
+          params: Params[Id]
+          loaderData: CreateLoaderData<Module>
+          actionData: CreateActionData<Module>
+        }
 
-      type Annotations = RouteModuleAnnotations<unstable_Props & {
-        parents: Parents,
-        module: Module,
-      }>;
+        type Annotations = RouteModuleAnnotations<unstable_Props & {
+          parents: Parents,
+          module: Module,
+        }>;
 
-      export namespace Route {
-        // links
-        export type LinkDescriptors = Annotations["LinkDescriptors"];
-        export type LinksFunction = Annotations["LinksFunction"];
+        export namespace Route {
+          // links
+          export type LinkDescriptors = Annotations["LinkDescriptors"];
+          export type LinksFunction = Annotations["LinksFunction"];
 
-        // meta
-        export type MetaArgs = Annotations["MetaArgs"];
-        export type MetaDescriptors = Annotations["MetaDescriptors"];
-        export type MetaFunction = Annotations["MetaFunction"];
+          // meta
+          export type MetaArgs = Annotations["MetaArgs"];
+          export type MetaDescriptors = Annotations["MetaDescriptors"];
+          export type MetaFunction = Annotations["MetaFunction"];
 
-        // headers
-        export type HeadersArgs = Annotations["HeadersArgs"];
-        export type HeadersFunction = Annotations["HeadersFunction"];
+          // headers
+          export type HeadersArgs = Annotations["HeadersArgs"];
+          export type HeadersFunction = Annotations["HeadersFunction"];
 
-        // unstable_middleware
-        export type unstable_MiddlewareFunction = Annotations["unstable_MiddlewareFunction"];
+          // unstable_middleware
+          export type unstable_MiddlewareFunction = Annotations["unstable_MiddlewareFunction"];
 
-        // unstable_clientMiddleware
-        export type unstable_ClientMiddlewareFunction = Annotations["unstable_ClientMiddlewareFunction"];
+          // unstable_clientMiddleware
+          export type unstable_ClientMiddlewareFunction = Annotations["unstable_ClientMiddlewareFunction"];
 
-        // loader
-        export type LoaderArgs = Annotations["LoaderArgs"];
+          // loader
+          export type LoaderArgs = Annotations["LoaderArgs"];
 
-        // clientLoader
-        export type ClientLoaderArgs = Annotations["ClientLoaderArgs"];
+          // clientLoader
+          export type ClientLoaderArgs = Annotations["ClientLoaderArgs"];
 
-        // action
-        export type ActionArgs = Annotations["ActionArgs"];
+          // action
+          export type ActionArgs = Annotations["ActionArgs"];
 
-        // clientAction
-        export type ClientActionArgs = Annotations["ClientActionArgs"];
+          // clientAction
+          export type ClientActionArgs = Annotations["ClientActionArgs"];
 
-        // HydrateFallback
-        export type HydrateFallbackProps = Annotations["HydrateFallbackProps"];
+          // HydrateFallback
+          export type HydrateFallbackProps = Annotations["HydrateFallbackProps"];
 
-        // Component
-        export type ComponentProps = Annotations["ComponentProps"];
+          // Component
+          export type ComponentProps = Annotations["ComponentProps"];
 
-        // ErrorBoundary
-        export type ErrorBoundaryProps = Annotations["ErrorBoundaryProps"];
-      }
-    `;
-    return { filename, content };
-  });
+          // ErrorBoundary
+          export type ErrorBoundaryProps = Annotations["ErrorBoundaryProps"];
+        }
+      `;
+      return { filename, content };
+    });
+}
+
+function isRouteInAppDirectory(ctx: Context, route: RouteManifestEntry) {
+  const absoluteRoutePath = Path.resolve(ctx.config.appDirectory, route.file);
+  return absoluteRoutePath.startsWith(ctx.config.appDirectory);
 }
 
 function getRouteModuleAnnotationsFilepath(