If your planning application is taking longer than six weeks, you can reach out directly to your case officer for an update. They will be able to provide information on the status of your application, any potential issues, or additional requirements you may need to fulfill.
You can typically expect to receive a decision within eight weeks for standard applications, or 13 weeks for major applications, so it's a good idea to check in if you haven't heard back by then. If you need contact information for your case officer or other assistance, you can find more details on the planning application page.