Anyone with a spare £650,000 can snap up the chance to convert an existing covered reservoir into a family home in Barnacre, near Garstang, designed by architect Ian Simpson.
Mr Simpson designed the landmark Beetham Tower, home to the Hilton Hotel in Manchester, and lives in the top floor penthouse which cost him £3m.
He rarely works on single residential houses but decided to enter the architectural competition after being inspired by the beauty of the location, surrounded by countryside with views over Morecambe Bay and Nicky Nook.
The result is an environmentally-friendly design which requires conversion work to complete the finished property within the former water utility building.
David Cowburn, from estate agents Armitstead Barnett, Market Place, Garstang, which has been appointed to oversee the scheme called Equilibrium House, said: “They would be buying a site with a large majority of the build already carried out.”
Planning permission has been granted for the property, set in 1.2 acres, under a special rule that permits a house of “ground-breaking design and strong eco credentials” to be built in the open countryside, in very exceptional circumstances.
Although there is potential for the design to be altered, the present plan includes six bedrooms, a gym, swimming pool, steam room, sauna, games room and cinema over 12,750 sq ft.
Owner Andy Shaw, from Bishops Rock Properties, Bolton, said: “There is no other home in the UK that will be like this.
“It will be utterly one of a kind.
“It’s been designed by multi-awarding winning architect Ian Simpson.”
It is only a handful of similar schemes across the country and would see the re-use of the huge structure which was constructed in 1971 to hold 1,000,000 gallons of drinking water.
As demand increased, a new and larger tank was constructed on a different site, leaving the original tank vacant and surplus to requirements.
For more information, visit www.equilibriumhouse.co.uk, where you can also claim free tickets to this year’s Home Building and Renovating Show at the NEC Birmingham, from March 29 to April 1.