From 15 April 2013, British nationals in Greece will submit passport applications to the Identity and Passport Service - IPS in the UK for processing.
The British Embassy in Athens said: "We are making important changes to the way we deliver British passports. The UK government’s goal is to ensure that all British nationals living overseas receive a consistent, trusted, secure and efficient service whilst keeping the costs as low as possible. In order to do that responsibility for issuing passports overseas passed from the Foreign Office and its posts overseas to the Identity and Passport Service (IPS) – an Agency of the Home Office, which already handles all passport applications from people living in the UK."
Full details can be found here