I dug out a record with Noel Coward singing it, and here is the note about it he wrote for the sleeve:

London Pride was written in the spring of 1941. I was standing on the platform of a London railway station on the morning after a bad blitz. Most of the glass in the station roof had been blown out and there was dust in the air and the smell of burning.

The train I was waiting to meet was running late and so I sat on a platform seat and watched the Londoners scurrying about in the spring sunshine. They all seemed to me to be gay and determined and wholly admirable, and for a moment or two I was overwhelmed by a wave of sentimental pride. The song started in my head then and there, and was finished in a couple of days.

The tune is based on the traditional lavender-seller’s song, "Won't You Buy My Sweet-Smelling Lavender, There Are Sixteen Bunches One Penny". This age-old melody was appropriated by the Germans and used as a foundation for "Deutschland Uber Alles", and I considered that the time had come for us to have it back in London where it belonged. I am proud of the words of this song. They express what I felt at the time, i.e. London Pride.