Just to strengthen Redcrx's point:
EU countries NEVER place any limit upon the validity of an EU passport. (It would cause an 'international incident' if they did!).
EU citizens have the right to freely enter all EU countries as long as they can prove their citizenship (either by producing a valid national identity card or a valid passport). Since you NEVER have to leave any EU country (because, as an EU citizen, you have the automatic right to live in, and work in, any EU country) it would be nonsensical to have limits on passport validity anyway.
Most other countries (which are popular with UK tourists) also don't place restrictions on the validity of passports when entry is solely for the purpose of tourism (or for visiting family members). Even the USA (which has some of the toughest entry requirements in the world), waives its normal '6 month validity' rule for holders of UK passports.
You state that you've looked at the Passport Office website. Wrong website! The one you require is that of the Foreign & Commonwealth Office. You can find the entry requirements (for UK passport holders) of every country in the world listed there:
http://www.fco.gov.uk...el-advice-by-country/
Chris