However, it has been claimed the proposed revamp was abandoned in April after a furious row emerged over the makeover of Boris Johnson's Downing Street flat. The lavish refurbishment of 11 Downing Street, which featured gold wallpaper by interior designer Lytle, reportedly cost a six-figure sum. It comes as it was claimed parts of the 'hand-crafted' wallpaper installed in Mr Johnson's 11 Downing Street flat have repeatedly fallen down. Meanwhile, some of the fabrics Lytle's Soane Britain company used in the refit of Mr Johnson and fiancee Carrie Symonds's 11 Downing Street apartment were revealed. Miss Lytle says it is 'based on a 19th century Syrian original pattern woven from cotton and silk'.