diff --git a/code/addons/actions/src/containers/ActionLogger/index.tsx b/code/addons/actions/src/containers/ActionLogger/index.tsx
index ab3fc51ab3cf..5f3a07941a89 100644
--- a/code/addons/actions/src/containers/ActionLogger/index.tsx
+++ b/code/addons/actions/src/containers/ActionLogger/index.tsx
@@ -26,6 +26,7 @@ const safeDeepEqual = (a: any, b: any): boolean => {
 };
 
 export default class ActionLogger extends Component<ActionLoggerProps, ActionLoggerState> {
+  // @ts-expect-error Unused, possibly remove, leaving, because it could be accessed even though it is private
   private mounted: boolean;
 
   constructor(props: ActionLoggerProps) {
diff --git a/code/addons/toolbars/src/components/ToolbarMenuList.tsx b/code/addons/toolbars/src/components/ToolbarMenuList.tsx
index 55a3d4358d14..95bd0c205dff 100644
--- a/code/addons/toolbars/src/components/ToolbarMenuList.tsx
+++ b/code/addons/toolbars/src/components/ToolbarMenuList.tsx
@@ -1,4 +1,4 @@
-import type { FC, ReactNode } from 'react';
+import type { FC } from 'react';
 import React, { useCallback } from 'react';
 import { useGlobals } from '@storybook/manager-api';
 import { deprecate } from '@storybook/client-logger';
@@ -10,14 +10,6 @@ import { getSelectedIcon, getSelectedTitle } from '../utils/get-selected';
 import type { ToolbarMenuProps } from '../types';
 import { ToolbarMenuListItem } from './ToolbarMenuListItem';
 
-type ItemProps = {
-  left?: ReactNode;
-  title?: ReactNode;
-  right?: ReactNode;
-  active?: boolean;
-  onClick?: () => void;
-};
-
 type ToolbarMenuListProps = ToolbarMenuProps & WithKeyboardCycleProps;
 
 export const ToolbarMenuList: FC<ToolbarMenuListProps> = withKeyboardCycle(
diff --git a/code/frameworks/angular/src/client/angular-beta/RendererFactory.test.ts b/code/frameworks/angular/src/client/angular-beta/RendererFactory.test.ts
index a50a8c5ff80c..7ad36c281979 100644
--- a/code/frameworks/angular/src/client/angular-beta/RendererFactory.test.ts
+++ b/code/frameworks/angular/src/client/angular-beta/RendererFactory.test.ts
@@ -306,10 +306,7 @@ describe('RendererFactory', () => {
           .appendChild(global.document.createElement('👾'));
 
         expect(global.document.getElementById('storybook-root').innerHTML).toContain('Canvas 🖼');
-        const render = await rendererFactory.getRendererInstance(
-          'my-story-in-docs',
-          rootDocstargetDOMNode
-        );
+        await rendererFactory.getRendererInstance('my-story-in-docs', rootDocstargetDOMNode);
         expect(global.document.getElementById('storybook-root').innerHTML).toBe('');
       });
     });
diff --git a/code/frameworks/angular/src/server/framework-preset-angular-cli.test.ts b/code/frameworks/angular/src/server/framework-preset-angular-cli.test.ts
index 6dfbdd7123bd..3581d656088e 100644
--- a/code/frameworks/angular/src/server/framework-preset-angular-cli.test.ts
+++ b/code/frameworks/angular/src/server/framework-preset-angular-cli.test.ts
@@ -34,11 +34,8 @@ describe('framework-preset-angular-cli', () => {
   });
 
   describe('without angular.json', () => {
-    let consoleErrorSpy: jest.SpyInstance;
-
     beforeEach(() => {
       initMockWorkspace('');
-      consoleErrorSpy = jest.spyOn(console, 'error').mockImplementation();
     });
     it('should return webpack base config and display log error', async () => {
       const webpackBaseConfig = newWebpackConfiguration();
@@ -421,10 +418,6 @@ describe('framework-preset-angular-cli', () => {
     it('should set webpack "module.rules"', async () => {
       const baseWebpackConfig = newWebpackConfiguration();
       const webpackFinalConfig = await webpackFinal(baseWebpackConfig, options);
-      const stylePaths = [
-        path.join(workspaceRoot, 'src', 'styles.css'),
-        path.join(workspaceRoot, 'src', 'styles.scss'),
-      ];
 
       const expectedRules: any = [
         {
@@ -507,10 +500,6 @@ describe('framework-preset-angular-cli', () => {
     it('should set webpack "module.rules"', async () => {
       const baseWebpackConfig = newWebpackConfiguration();
       const webpackFinalConfig = await webpackFinal(baseWebpackConfig, options);
-      const stylePaths = [
-        path.join(workspaceRoot, 'src', 'styles.css'),
-        path.join(workspaceRoot, 'src', 'styles.scss'),
-      ];
 
       const expectedRules: any = [
         {
diff --git a/code/frameworks/angular/tsconfig.build.json b/code/frameworks/angular/tsconfig.build.json
index e6ebc0167a55..6aa09e55adac 100644
--- a/code/frameworks/angular/tsconfig.build.json
+++ b/code/frameworks/angular/tsconfig.build.json
@@ -15,7 +15,8 @@
     "allowJs": true,
     "pretty": true,
     "noErrorTruncation": true,
-    "listEmittedFiles": false
+    "listEmittedFiles": false,
+    "noUnusedLocals": false
   },
   "include": ["src/**/*", "src/**/*.json"]
 }
diff --git a/code/lib/cli/src/generators/baseGenerator.ts b/code/lib/cli/src/generators/baseGenerator.ts
index 193d9114a961..027a45df129b 100644
--- a/code/lib/cli/src/generators/baseGenerator.ts
+++ b/code/lib/cli/src/generators/baseGenerator.ts
@@ -129,7 +129,6 @@ export async function baseGenerator(
   const {
     packages: frameworkPackages,
     type,
-    renderer: rendererInclude, // deepscan-disable-line UNUSED_DECL
     rendererId,
     framework: frameworkInclude,
     builder: builderInclude,
diff --git a/code/lib/docs-tools/src/argTypes/convert/__testfixtures__/typescript/optionals.tsx b/code/lib/docs-tools/src/argTypes/convert/__testfixtures__/typescript/optionals.tsx
index 16ac1e11b88c..b5a3e7d65647 100644
--- a/code/lib/docs-tools/src/argTypes/convert/__testfixtures__/typescript/optionals.tsx
+++ b/code/lib/docs-tools/src/argTypes/convert/__testfixtures__/typescript/optionals.tsx
@@ -17,5 +17,5 @@ export const Component: FC<Props> = ({
   ...rest
 }: Props) => {
   const props = { any, string, bool, number, ...rest };
-  return <>JSON.stringify(props)</>;
+  return <>{JSON.stringify(props)}</>;
 };
diff --git a/code/lib/manager-api/src/tests/stories.test.ts b/code/lib/manager-api/src/tests/stories.test.ts
index e0e0159439f9..072527e8eb50 100644
--- a/code/lib/manager-api/src/tests/stories.test.ts
+++ b/code/lib/manager-api/src/tests/stories.test.ts
@@ -876,7 +876,6 @@ describe('stories API', () => {
 
       const {
         api: { setIndex, jumpToStory },
-        state,
       } = initStories({ store, navigate, provider } as any);
       setIndex({ v: 4, entries: navigationEntries });
 
diff --git a/code/lib/preview-api/src/modules/core-client/start.test.ts b/code/lib/preview-api/src/modules/core-client/start.test.ts
index cee6e19bbe58..96158c8e92a4 100644
--- a/code/lib/preview-api/src/modules/core-client/start.test.ts
+++ b/code/lib/preview-api/src/modules/core-client/start.test.ts
@@ -386,7 +386,7 @@ describe('start', () => {
     it('re-emits SET_INDEX when a story is added', async () => {
       const renderToCanvas = jest.fn(({ storyFn }) => storyFn());
 
-      const { configure, clientApi, forceReRender } = start(renderToCanvas);
+      const { configure, clientApi } = start(renderToCanvas);
 
       let disposeCallback: () => void = () => {};
       const module = {
diff --git a/code/lib/preview-api/src/modules/preview-web/PreviewWeb.test.ts b/code/lib/preview-api/src/modules/preview-web/PreviewWeb.test.ts
index ad533c6debc1..79e9769c728d 100644
--- a/code/lib/preview-api/src/modules/preview-web/PreviewWeb.test.ts
+++ b/code/lib/preview-api/src/modules/preview-web/PreviewWeb.test.ts
@@ -775,7 +775,7 @@ describe('PreviewWeb', () => {
 
     it('passes globals in context to renderToCanvas', async () => {
       document.location.search = '?id=component-one--a';
-      const preview = await createAndRenderPreview();
+      await createAndRenderPreview();
 
       mockChannel.emit.mockClear();
       projectAnnotations.renderToCanvas.mockClear();
diff --git a/code/lib/preview-api/src/modules/store/StoryStore.test.ts b/code/lib/preview-api/src/modules/store/StoryStore.test.ts
index 86fe210bb1f1..3beb34f11d62 100644
--- a/code/lib/preview-api/src/modules/store/StoryStore.test.ts
+++ b/code/lib/preview-api/src/modules/store/StoryStore.test.ts
@@ -208,7 +208,7 @@ describe('StoryStore', () => {
       store.setProjectAnnotations(projectAnnotations);
       store.initialize({ storyIndex, importFn, cache: false });
 
-      const story = await store.loadStory({ storyId: 'component-one--a' });
+      await store.loadStory({ storyId: 'component-one--a' });
       expect(processCSFFile).toHaveBeenCalledTimes(1);
       expect(prepareStory).toHaveBeenCalledTimes(1);
 
diff --git a/code/renderers/svelte/src/public-types.test.ts b/code/renderers/svelte/src/public-types.test.ts
index 72855a7bd519..8aadbc61740b 100644
--- a/code/renderers/svelte/src/public-types.test.ts
+++ b/code/renderers/svelte/src/public-types.test.ts
@@ -59,6 +59,7 @@ describe('Meta', () => {
         },
       }),
     };
+    expectTypeOf(meta).toMatchTypeOf<Meta<Button>>();
   });
 
   test('Events fallback to custom events when no component is specified', () => {
@@ -75,6 +76,7 @@ describe('Meta', () => {
         },
       }),
     };
+    expectTypeOf(meta).toMatchTypeOf<Meta<Button>>();
   });
 });
 
diff --git a/code/renderers/vue3/src/public-types.test.ts b/code/renderers/vue3/src/public-types.test.ts
index 6114137c9478..8c184047e098 100644
--- a/code/renderers/vue3/src/public-types.test.ts
+++ b/code/renderers/vue3/src/public-types.test.ts
@@ -60,6 +60,7 @@ describe('Meta', () => {
         });
       },
     };
+    expectTypeOf(meta).toMatchTypeOf<Meta<typeof Button>>();
   });
 });
 
diff --git a/code/renderers/web-components/src/docs/custom-elements.ts b/code/renderers/web-components/src/docs/custom-elements.ts
index fe8cbc633a65..66743bfdd7a8 100644
--- a/code/renderers/web-components/src/docs/custom-elements.ts
+++ b/code/renderers/web-components/src/docs/custom-elements.ts
@@ -37,14 +37,6 @@ interface Module {
 interface Declaration {
   tagName: string;
 }
-interface Sections {
-  attributes?: any;
-  properties?: any;
-  events?: any;
-  slots?: any;
-  cssCustomProperties?: any;
-  cssShadowParts?: any;
-}
 
 function mapItem(item: TagItem, category: string): InputType {
   const type =
diff --git a/code/tsconfig.json b/code/tsconfig.json
index 645fbb05c512..b8f48b0d7ead 100644
--- a/code/tsconfig.json
+++ b/code/tsconfig.json
@@ -14,7 +14,8 @@
     "esModuleInterop": true,
     "isolatedModules": true,
     "strictBindCallApply": true,
-    "lib": ["dom", "esnext"]
+    "lib": ["dom", "esnext"],
+    "noUnusedLocals": true
   },
   "exclude": ["dist", "**/dist", "node_modules", "**/node_modules", "**/setup-jest.ts"],
   "ts-node": {
diff --git a/code/ui/manager/src/runtime.ts b/code/ui/manager/src/runtime.ts
index 55b35f7c3927..ebe5f040457f 100644
--- a/code/ui/manager/src/runtime.ts
+++ b/code/ui/manager/src/runtime.ts
@@ -18,6 +18,7 @@ const { FEATURES, SERVER_CHANNEL_URL } = global;
 class ReactProvider extends Provider {
   private addons: AddonStore;
 
+  // @ts-expect-error Unused, possibly remove, leaving, because it could be accessed even though it is private
   private channel: Channel;
 
   private serverChannel?: Channel;
diff --git a/scripts/tsconfig.json b/scripts/tsconfig.json
index 4c508e21aac4..a65f7f5b06f8 100644
--- a/scripts/tsconfig.json
+++ b/scripts/tsconfig.json
@@ -24,7 +24,7 @@
     "strict": false,
     "strictNullChecks": false,
     "forceConsistentCasingInFileNames": true,
-    "noUnusedLocals": false,
+    "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
@@ -33,7 +33,7 @@
       "verdaccio": [
         "./typings.d.ts"
       ]
-    }
+    },
   },
   "exclude": [
     "dist",