The Liverpool captain has irked locals of the seaside town of Formby by constructing the building, which has been likened by one irate neighbour to 'an Asda supermarket in a beauty spot'.

Gerrard, 28, and his wife Alex Curran, 25, were granted planning permission in October for a 'detached two-storey building to be used as a garden pavilion and gymnasium with games room'.

Horrified neighbours have watched the grassy land at the back of the Gerrards' garden be transformed into a building site for the huge complex, which has taken eight months to build.

Despite objections by locals, Gerrard won planning permission after including plans to install a living 'sedum roof', which includes grass, moss and other plants and helps cut fuel bills by keeping the building warmer in the winter.

The lavish building will include changing rooms, plunge pool, shower rooms, kitchenette, treatment area and games area, which will be linked to the couple's existing swimming pool by a walkway.