Warren and David Gold helped make London synonymous with style when they opened their shop Lord John in Carnaby Street in 1963, attracting the Beatles and the Small Faces among others.
Now their contribution to fashion has been marked with a plaque unveiled by Robert Davis, the deputy leader of Westminster Council, in the presence of Lauren, daughter of the late Warren Gold.
The style icon brothers died in 2009 and 2015 having dressed the Rolling Stone, the Kinks and others at the epicentre of London's swinging sixties.
Ms Gold said the plaque was "a huge honour and deserved tribute to some of the most inspiring and legendary men to come out of the 1960s".
