You can solve your problem using child routes.
See working demo at https://angular-multi-layout-example.stackblitz.io/ or edit at https://stackblitz.com/edit/angular-multi-layout-example
Set your route like below
const appRoutes: Routes = [
// Site routes goes here
{
path: '',
component: SiteLayoutComponent,
children: [
{ path: '', component: HomeComponent, pathMatch: 'full'},
{ path: 'about', component: AboutComponent }
]
},
// App routes goes here
{
path: '',
component: AppLayoutComponent,
children: [
{ path: 'dashboard', component: DashboardComponent },
{ path: 'profile', component: ProfileComponent }
]
},
// no layout routes
{ path: 'login', component: LoginComponent},
{ path: 'register', component: RegisterComponent },
// otherwise redirect to home
{ path: '**', redirectTo: '' }
];
export const routing = RouterModule.forRoot(appRoutes);