Katie's right, but there are a few things to watch for.
If you're on DAFNE or similar flexible regime, mention this otherwise you could get referred somewhere they don't understand your regime and give you a hard time about 'rules' that no longer apply.
If you don't hear anything within 3-4 weeks of asking for referral, chase it up. There are targets for new referrals and you should hear something (an appointment, or invitation to arrange it) pretty quickly, so if not something's gone wrong.
If the GP surgery say they have their own diabetic clinic, check its run by specialists (docs and DSNs from hospitals sometimes run outreach clinics in larger GP surgeries). Otherwise it could be a practice nurse who only knows the basics about diabetes. My new GP forgot to refer me, when I queried it they invited me to their "diabetic clinic". This "clinic" turned out to be a practice nurse who knew nothing about insulin - inappropriate for a type 1.
You're entitled to choose your hospital/consultant but if new to the area the names may not mean much to you. Check NHS Choices in advance to see what services are available where. Or why not tell us where you're moving to - maybe folks here can recommend a clinic.
Hope this helps