Braemar will undergo the work during its dry dock period scheduled for May and June next year.
The work will be carried out by Blohm + Voss Repair in Hamburg which will be handling a similar project on the company's latest acquisition, Balmoral, later this year.
A 31.2mtr extension will be added in the mid-section of Braemar and the fore and aft sections on Deck 8 will be extended. This work will increase the amount of premium accommodation by providing more cabins and suites with balconies and will increase the capacity of the ship from 727 to 977 (an additional 250 passengers). Extra public space includes a bar designed on the concept of a British pub - a new feature for Fred. Olsen ships which will first appear on Balmoral.
In addition to further balcony suites, the new Deck 8 space will accommodate a new restaurant along with an Observatory Lounge similar to those found on other Fred. Olsen ships. There will also be extra deck space, and a second swimming pool.
Company md Mike Rodwell said: 'There will be no disruption to schedules as we had penciled in this period in our 2008 itinerary planning in anticipation that this work would be carried out.'