Abstract To facilitate a new compression package on an already crowded offshore platform, a new 2,000 tonne module is to be installed on top of a unique mono-column support. Equivalent to the height of the London Eye, the 140 metre high, 4.5 metre diameter mono-column sits in 136 metres of water, a depth much great than any similar structure. Although a simple structure, this is the first of its kind in the North Sea and possibly unique worldwide. The new mono-column is supported directly on the existing jacket pile at the sea bed and uses the platform's existing redundant pile capacity to economically extend the space available for the new compression facilities. A simple spigot interface between the mono-column and existing pile also negates the need for grouting, temporary fixings and any subsea intervention. Traditional approaches to increasing real estate on offshore platforms involve the installation of cantilevers or shoe horning equipment into inefficient spaces leading to extensive offshore hours and lengthy shutdowns. The critical design consideration for this structure is its ability to survive a ship impact scenario. To address this, the structure adopts technology developed for the transport of nuclear materials. Energy absorbing technology and analysis expertise have been utilised to create a ‘crumple zone’ to protect the new structure. Due to its simplicity, this innovative concept has resulted in considerable commercial benefits which include: Reduced shutdown duration. A conventional approach would require around a 3 week shutdown. At approximately £2 million per day deferred/lost revenue, this is a saving of £42 million for a major offshore production platform. Eliminated Flotel requirements. Conventional approaches would require approximately 60 days of Flotel hire at a total cost of £12 million. Against a mono-column installed cost of £8 million, a saving of £46 million has been achieved.