Leslie Phillips walks up Westbourne Grove towards Hereford Road, then follows a band into the Princess Royal pub, which is now the Commander, a porterhouse and oyster bar:
The exterior has changed, and if the pub interior we see in Raising the Wind is authentic, rather than a studio construction, that that too has changed somewhat:
Other locations of interest in the film are Royal Crescent, W.11:
And of course University College London, on Gower Street, W.C.1: