diff --git a/src/bazel-tsconfig-build.json b/src/bazel-tsconfig-build.json
index 48972a554e06..a18bef3c4222 100644
--- a/src/bazel-tsconfig-build.json
+++ b/src/bazel-tsconfig-build.json
@@ -9,8 +9,8 @@
     "declaration": true,
     "stripInternal": false,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noFallthroughCasesInSwitch": true,
diff --git a/src/dev-app/tsconfig-aot.json b/src/dev-app/tsconfig-aot.json
index 904eda36e027..8a77a4133581 100644
--- a/src/dev-app/tsconfig-aot.json
+++ b/src/dev-app/tsconfig-aot.json
@@ -6,8 +6,8 @@
     // Needed for Moment.js since it doesn't have a default export.
     "allowSyntheticDefaultImports": true,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitAny": true,
diff --git a/src/dev-app/tsconfig-build.json b/src/dev-app/tsconfig-build.json
index c2cf7f80bc11..65e321f9847f 100644
--- a/src/dev-app/tsconfig-build.json
+++ b/src/dev-app/tsconfig-build.json
@@ -7,8 +7,8 @@
     "declaration": false,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitThis": true,
diff --git a/src/material-examples/tsconfig-build.json b/src/material-examples/tsconfig-build.json
index 92f7400de4d8..c5921fe9040c 100644
--- a/src/material-examples/tsconfig-build.json
+++ b/src/material-examples/tsconfig-build.json
@@ -7,8 +7,8 @@
     "declaration": true,
     "stripInternal": false,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitAny": true,
diff --git a/src/material-moment-adapter/tsconfig-build.json b/src/material-moment-adapter/tsconfig-build.json
index 00b897f40aa7..8348d78408fd 100644
--- a/src/material-moment-adapter/tsconfig-build.json
+++ b/src/material-moment-adapter/tsconfig-build.json
@@ -7,8 +7,8 @@
     "declaration": true,
     "stripInternal": false,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitAny": true,
diff --git a/src/material/schematics/tsconfig.json b/src/material/schematics/tsconfig.json
index ad488c1b7f78..0bebfd57985d 100644
--- a/src/material/schematics/tsconfig.json
+++ b/src/material/schematics/tsconfig.json
@@ -7,8 +7,8 @@
     "noEmitOnError": false,
     "strictNullChecks": true,
     "skipDefaultLibCheck": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
     "skipLibCheck": true,
     "sourceMap": true,
     "declaration": true,
diff --git a/src/universal-app/tsconfig-build.json b/src/universal-app/tsconfig-build.json
index 7112463c6243..bfb07dc04713 100644
--- a/src/universal-app/tsconfig-build.json
+++ b/src/universal-app/tsconfig-build.json
@@ -5,8 +5,8 @@
     "declaration": true,
     "stripInternal": false,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitAny": true,
diff --git a/src/universal-app/tsconfig-prerender.json b/src/universal-app/tsconfig-prerender.json
index d7c7f8413cf0..b66c7e0825d1 100644
--- a/src/universal-app/tsconfig-prerender.json
+++ b/src/universal-app/tsconfig-prerender.json
@@ -4,8 +4,8 @@
     "declaration": false,
     "stripInternal": false,
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitAny": true,
diff --git a/tools/dgeni/tsconfig.json b/tools/dgeni/tsconfig.json
index 28d0aca264e6..476fbcb40dc1 100644
--- a/tools/dgeni/tsconfig.json
+++ b/tools/dgeni/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "lib": ["es2015", "dom", "es2016.array.include"],
     "moduleResolution": "node",
     "strictNullChecks": true,
diff --git a/tools/gulp/tsconfig.json b/tools/gulp/tsconfig.json
index 740bb612790c..8a3d30f1db03 100644
--- a/tools/gulp/tsconfig.json
+++ b/tools/gulp/tsconfig.json
@@ -1,8 +1,8 @@
 {
   "compilerOptions": {
     "experimentalDecorators": true,
-    "noUnusedParameters": true,
-    "noUnusedLocals": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
     "lib": ["es2015", "dom", "es2016.array.include"],
     "module": "commonjs",
     "moduleResolution": "node",
diff --git a/tsconfig.json b/tsconfig.json
index 7923e7ec281b..7ba194f4fd5f 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,9 +6,9 @@
     "experimentalDecorators": true,
     "module": "es2015",
     "moduleResolution": "node",
-    "noUnusedParameters": true,
+    "noUnusedParameters": false,
     "noFallthroughCasesInSwitch": true,
-    "noUnusedLocals": true,
+    "noUnusedLocals": false,
     "strictNullChecks": true,
     "strictFunctionTypes": true,
     "noImplicitAny": true,
diff --git a/tslint.json b/tslint.json
index 05cb91ef2919..3ccf012d3316 100644
--- a/tslint.json
+++ b/tslint.json
@@ -27,6 +27,7 @@
     "no-bitwise": true,
     "no-shadowed-variable": true,
     "no-unused-expression": true,
+    "no-unused-variable": true,
     "no-var-keyword": true,
     "member-access": [true, "no-public"],
     "no-debugger": true,