diff --git a/packages/core/src/renderer/components/+namespaces/namespace-store.test.ts b/packages/core/src/renderer/components/+namespaces/namespace-store.test.ts
index ac70727a45..4e312e08f1 100644
--- a/packages/core/src/renderer/components/+namespaces/namespace-store.test.ts
+++ b/packages/core/src/renderer/components/+namespaces/namespace-store.test.ts
@@ -16,6 +16,7 @@ import hostedClusterInjectable from "../../cluster-frame-context/hosted-cluster.
 import createClusterInjectable from "../../cluster/create-cluster.injectable";
 import { getDiForUnitTesting } from "../../getDiForUnitTesting";
 import storesAndApisCanBeCreatedInjectable from "../../stores-apis-can-be-created.injectable";
+import removeSubnamespaceInjectable from "./remove-subnamespace.injectable";
 import type { NamespaceStore } from "./store";
 import namespaceStoreInjectable from "./store.injectable";
 
@@ -105,9 +106,11 @@ const levelDeepSubChildA = createNamespace("level-deep-subchild-a", {
   "level-deep-subchild-a.tree.hnc.x-k8s.io/depth": "0",
 });
 
-const deleteMock = jest.spyOn(NamespaceApi.prototype, "delete")
+const deleteNamespaceMock = jest.spyOn(NamespaceApi.prototype, "delete")
   .mockImplementation();
 
+const removeSubnamespaceMock = jest.fn();
+
 describe("NamespaceStore", () => {
   let di: DiContainer;
   let namespaceStore: NamespaceStore;
@@ -121,6 +124,7 @@ describe("NamespaceStore", () => {
     di.override(directoryForUserDataInjectable, () => "/some-user-store-path");
     di.override(directoryForKubeConfigsInjectable, () => "/some-kube-configs");
     di.override(storesAndApisCanBeCreatedInjectable, () => true);
+    di.override(removeSubnamespaceInjectable, () => removeSubnamespaceMock);
 
     const createCluster = di.inject(createClusterInjectable);
 
@@ -223,7 +227,7 @@ describe("NamespaceStore", () => {
     it("removes namespace", () => {
       namespaceStore.remove(fullNamespace);
 
-      expect(deleteMock).toBeCalledWith({ name: "full-namespace", namespace: undefined });
+      expect(deleteNamespaceMock).toBeCalledWith({ name: "full-namespace", namespace: undefined });
     });
   });
 
@@ -231,7 +235,13 @@ describe("NamespaceStore", () => {
     it("does not remove namespace directly", () => {
       namespaceStore.remove(service1);
 
-      expect(deleteMock).not.toBeCalled();
+      expect(deleteNamespaceMock).not.toBeCalled();
+    });
+
+    it("calls remove subnamespace function", () => {
+      namespaceStore.remove(service1);
+
+      expect(removeSubnamespaceMock).toBeCalledWith("service-1");
     });
   });
 });
diff --git a/packages/core/src/renderer/components/+namespaces/remove-subnamespace.injectable.ts b/packages/core/src/renderer/components/+namespaces/remove-subnamespace.injectable.ts
new file mode 100644
index 0000000000..34f79fec54
--- /dev/null
+++ b/packages/core/src/renderer/components/+namespaces/remove-subnamespace.injectable.ts
@@ -0,0 +1,46 @@
+import { getInjectable } from "@ogre-tools/injectable";
+import customResourceDefinitionStoreInjectable from "../+custom-resources/definition.store.injectable";
+import apiManagerInjectable from "../../../common/k8s-api/api-manager/manager.injectable";
+import showErrorNotificationInjectable from "../notifications/show-error-notification.injectable";
+import showSuccessNotificationInjectable from "../notifications/show-success-notification.injectable";
+
+const removeSubnamespaceInjectable = getInjectable({
+  id: "remove-subnamespace",
+
+  instantiate: (di) => {
+    const crdStore = di.inject(customResourceDefinitionStoreInjectable);
+    const apiManager = di.inject(apiManagerInjectable);
+    const showErrorNotification = di.inject(showErrorNotificationInjectable);
+    const showSuccessNotification = di.inject(showSuccessNotificationInjectable);
+
+    /**
+     * Removing subnamespace controlled by hierarchical namespace controller by deleting
+     * the SubnamespaceAnchor from the parent namespace. Anchor is CRD with the same name
+     * https://github.com/kubernetes-sigs/hierarchical-namespaces/blob/master/docs/user-guide/quickstart.md#subnamespaces-deep-dive
+     * @param subnamespaceName namespace name
+     * @returns 
+     */
+    return async (subnamespaceName: string) => {
+      await crdStore.loadAll();
+
+      const anchorCrd = crdStore.getByGroup("hnc.x-k8s.io", "subnamespaceanchors");
+      const store = apiManager.getStore(anchorCrd?.getResourceApiBase());
+
+      await store?.loadAll();
+
+      const anchor = store?.getByName(subnamespaceName);
+
+      if (!anchor) {
+        showErrorNotification("Error removing namespace: can not find subnamespace anchor.");
+        
+        return;
+      }
+
+      await store?.remove(anchor);
+
+      showSuccessNotification(`Subnamespace ${subnamespaceName} removed`);
+    }
+  }
+});
+
+export default removeSubnamespaceInjectable;
\ No newline at end of file
diff --git a/packages/core/src/renderer/components/+namespaces/store.injectable.ts b/packages/core/src/renderer/components/+namespaces/store.injectable.ts
index 06ae358f9b..cc99beaf9f 100644
--- a/packages/core/src/renderer/components/+namespaces/store.injectable.ts
+++ b/packages/core/src/renderer/components/+namespaces/store.injectable.ts
@@ -12,7 +12,7 @@ import storesAndApisCanBeCreatedInjectable from "../../stores-apis-can-be-create
 import clusterFrameContextForClusterScopedResourcesInjectable from "../../cluster-frame-context/for-cluster-scoped-resources.injectable";
 import clusterConfiguredAccessibleNamespacesInjectable from "../../cluster/accessible-namespaces.injectable";
 import loggerInjectable from "../../../common/logger.injectable";
-import customResourceDefinitionStoreInjectable from "../+custom-resources/definition.store.injectable";
+import removeSubnamespaceInjectable from "./remove-subnamespace.injectable";
 
 const namespaceStoreInjectable = getInjectable({
   id: "namespace-store",
@@ -28,7 +28,7 @@ const namespaceStoreInjectable = getInjectable({
       storage: createStorage<string[] | undefined>("selected_namespaces", undefined),
       clusterConfiguredAccessibleNamespaces: di.inject(clusterConfiguredAccessibleNamespacesInjectable),
       logger: di.inject(loggerInjectable),
-      crdStore: di.inject(customResourceDefinitionStoreInjectable)
+      removeSubnamespace: di.inject(removeSubnamespaceInjectable)
     }, api);
   },
   injectionToken: kubeObjectStoreInjectionToken,
diff --git a/packages/core/src/renderer/components/+namespaces/store.ts b/packages/core/src/renderer/components/+namespaces/store.ts
index 789b00aeb5..bb01d6b1cc 100644
--- a/packages/core/src/renderer/components/+namespaces/store.ts
+++ b/packages/core/src/renderer/components/+namespaces/store.ts
@@ -11,7 +11,6 @@ import type { KubeObjectStoreDependencies, KubeObjectStoreLoadingParams } from "
 import { KubeObjectStore } from "../../../common/k8s-api/kube-object.store";
 import type { NamespaceApi } from "../../../common/k8s-api/endpoints/namespace.api";
 import { Namespace } from "../../../common/k8s-api/endpoints/namespace.api";
-import type { CustomResourceDefinitionStore } from "../+custom-resources/definition.store";
 
 export interface NamespaceTree {
   id: string;
@@ -22,7 +21,7 @@ export interface NamespaceTree {
 interface Dependencies extends KubeObjectStoreDependencies {
   readonly storage: StorageLayer<string[] | undefined>;
   readonly clusterConfiguredAccessibleNamespaces: IComputedValue<string[]>;
-  readonly crdStore: CustomResourceDefinitionStore;
+  readonly removeSubnamespace: (name: string) => void;
 }
 
 export class NamespaceStore extends KubeObjectStore<Namespace, NamespaceApi> {
@@ -220,22 +219,10 @@ export class NamespaceStore extends KubeObjectStore<Namespace, NamespaceApi> {
     };
   }
 
-  @action
-  async removeSubnamespace(item: Namespace) {
-    // Remove anchor from the parent namespace
-    const crd = this.dependencies.crdStore.getByName(item.getName());
-
-    if (!crd) {
-      return;
-    }
-
-    this.dependencies.crdStore.remove(crd);
-  }
-
   @action
   async remove(item: Namespace) {
     if (item.isSubnamespace()) {
-      this.removeSubnamespace(item);
+      this.dependencies.removeSubnamespace(item.getName());
 
       return;
     }