Pizza Express has been one of the best jazz venues in London since opening in 1969. It may be a strange arrangement, in a basement beneath a branch of the chain restaurant, but it's highly popular. Lots of big names perform here and artists such as Norah Jones, Gregory Porter and the late Amy Winehouse played here in their early days.
Times vary according to the day but doors are usually open at 7pm, with shows starting at 8.30pm. Check the website.