Reduction in passport fees from 7th April
The fees for a UK passport for British citizens applying from overseas countries, including Czech Republic will fall by 35% from next month.

James Brokenshire, Immigration and Security Minister, has announced that from 7th April the passport fee for customers applying for a UK passport from overseas will be reduced by £45 for adults and £28.50 for children. The new fees are:
Adult 32 page passport £83.00
Child 32 page passport £53.00
Jumbo 48 page passport £91.00
The 35% decrease in passport fees is a result of efficiency savings made over the last three years by bringing back the processing and issuing of overseas passports to the UK, including from the former passport processing centre at the British Embassy Prague.
If you need a new or replacement passport, go to the Overseas British passport applications page on GOV.UK. Overseas customers will also continue to pay a courier charge in addition to the passport fee.