diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index d2e75ec95..fd052f2c2 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -2363,8 +2363,8 @@ interface ULongRange {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -2384,15 +2384,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/serviceworker.generated.d.ts b/baselines/serviceworker.generated.d.ts
index a8d13d49d..7078e604b 100644
--- a/baselines/serviceworker.generated.d.ts
+++ b/baselines/serviceworker.generated.d.ts
@@ -740,8 +740,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -761,15 +761,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/sharedworker.generated.d.ts b/baselines/sharedworker.generated.d.ts
index c62e00a22..adef4285f 100644
--- a/baselines/sharedworker.generated.d.ts
+++ b/baselines/sharedworker.generated.d.ts
@@ -670,8 +670,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -691,15 +691,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
index a46179419..53dbddc42 100644
--- a/baselines/ts5.5/dom.generated.d.ts
+++ b/baselines/ts5.5/dom.generated.d.ts
@@ -2363,8 +2363,8 @@ interface ULongRange {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -2384,15 +2384,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.5/serviceworker.generated.d.ts b/baselines/ts5.5/serviceworker.generated.d.ts
index 5650ddafb..d9e9d03da 100644
--- a/baselines/ts5.5/serviceworker.generated.d.ts
+++ b/baselines/ts5.5/serviceworker.generated.d.ts
@@ -740,8 +740,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -761,15 +761,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.5/sharedworker.generated.d.ts b/baselines/ts5.5/sharedworker.generated.d.ts
index b391ebe1f..ffb0f7c46 100644
--- a/baselines/ts5.5/sharedworker.generated.d.ts
+++ b/baselines/ts5.5/sharedworker.generated.d.ts
@@ -670,8 +670,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -691,15 +691,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.5/webworker.generated.d.ts b/baselines/ts5.5/webworker.generated.d.ts
index b51738846..ce27127ff 100644
--- a/baselines/ts5.5/webworker.generated.d.ts
+++ b/baselines/ts5.5/webworker.generated.d.ts
@@ -884,8 +884,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -905,15 +905,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
index 38fd93592..a77aeb2d6 100644
--- a/baselines/ts5.6/dom.generated.d.ts
+++ b/baselines/ts5.6/dom.generated.d.ts
@@ -2363,8 +2363,8 @@ interface ULongRange {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -2384,15 +2384,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.6/serviceworker.generated.d.ts b/baselines/ts5.6/serviceworker.generated.d.ts
index 5650ddafb..d9e9d03da 100644
--- a/baselines/ts5.6/serviceworker.generated.d.ts
+++ b/baselines/ts5.6/serviceworker.generated.d.ts
@@ -740,8 +740,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -761,15 +761,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.6/sharedworker.generated.d.ts b/baselines/ts5.6/sharedworker.generated.d.ts
index b391ebe1f..ffb0f7c46 100644
--- a/baselines/ts5.6/sharedworker.generated.d.ts
+++ b/baselines/ts5.6/sharedworker.generated.d.ts
@@ -670,8 +670,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -691,15 +691,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/ts5.6/webworker.generated.d.ts b/baselines/ts5.6/webworker.generated.d.ts
index b51738846..ce27127ff 100644
--- a/baselines/ts5.6/webworker.generated.d.ts
+++ b/baselines/ts5.6/webworker.generated.d.ts
@@ -884,8 +884,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -905,15 +905,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
index 1b01c7fb7..03c770eb1 100644
--- a/baselines/webworker.generated.d.ts
+++ b/baselines/webworker.generated.d.ts
@@ -884,8 +884,8 @@ interface Transformer<I = any, O = any> {
 }
 
 interface URLPatternComponentResult {
-    groups?: Record<string, string | undefined>;
-    input?: string;
+    groups: Record<string, string | undefined>;
+    input: string;
 }
 
 interface URLPatternInit {
@@ -905,15 +905,15 @@ interface URLPatternOptions {
 }
 
 interface URLPatternResult {
-    hash?: URLPatternComponentResult;
-    hostname?: URLPatternComponentResult;
-    inputs?: URLPatternInput[];
-    password?: URLPatternComponentResult;
-    pathname?: URLPatternComponentResult;
-    port?: URLPatternComponentResult;
-    protocol?: URLPatternComponentResult;
-    search?: URLPatternComponentResult;
-    username?: URLPatternComponentResult;
+    hash: URLPatternComponentResult;
+    hostname: URLPatternComponentResult;
+    inputs: URLPatternInput[];
+    password: URLPatternComponentResult;
+    pathname: URLPatternComponentResult;
+    port: URLPatternComponentResult;
+    protocol: URLPatternComponentResult;
+    search: URLPatternComponentResult;
+    username: URLPatternComponentResult;
 }
 
 interface UnderlyingByteSource {
diff --git a/inputfiles/overridingTypes.jsonc b/inputfiles/overridingTypes.jsonc
index 30946d42d..7d66659bf 100644
--- a/inputfiles/overridingTypes.jsonc
+++ b/inputfiles/overridingTypes.jsonc
@@ -3947,6 +3947,51 @@
             },
             "WebAssemblyInstantiatedSource": {
                 "legacyNamespace": "WebAssembly"
+            },
+            "URLPatternComponentResult": {
+                "members": {
+                    "member": {
+                        "input": {
+                            "required": true
+                        },
+                        "groups": {
+                            "required": true
+                        }
+                    }
+                }
+            },
+            "URLPatternResult": {
+                "members": {
+                    "member": {
+                        "inputs": {
+                            "required": true
+                        },
+                        "protocol": {
+                            "required": true
+                        },
+                        "username": {
+                            "required": true
+                        },
+                        "password": {
+                            "required": true
+                        },
+                        "hostname": {
+                            "required": true
+                        },
+                        "port": {
+                            "required": true
+                        },
+                        "pathname": {
+                            "required": true
+                        },
+                        "search": {
+                            "required": true
+                        },
+                        "hash": {
+                            "required": true
+                        }
+                    }
+                }
             }
         }
     },