They boast some of the smartest and most expensive shops, so it is little surprise that Europe’s most luxurious high streets recorded another year of robust rental growth in 2015.

Leading the parade was Via Monte Napoleone in Milan, where rents rose by 41.2 per cent, helping to make it the fastest-growing high street rental market in Europe in the fourth quarter of last year, according to DTZ associate Cushman & Wakefield.

Not far behind was Via Condotti in Rome, where rents rose by 37.5 per cent over the year.