Can I apply directly to the IPS (UK based passport office) instead of Düsseldorf?
Yes, but only if you are going to be in the UK at the time you make the application. To do so, you need to make an appointment at a UK passport office, and you must provide an address in the UK to which the passport can be posted. Full details are available on the Identity and Passport Service (IPS) website. The Passport Adviceline on 0870-521-0410 also operates 24 hours a day 7 days a week.