It should be noted that the term West End Theatre is sometimes used to refer specifically to commercial productions in Theatreland. However the leading non-commercial (usually government subsidised) theatres in London, such as the National Theatre, the Royal Shakespeare Company, the Globe Theatre, the Old Vic, the Young Vic, the Royal Court Theatre, the Almeida Theatre, and the Open Air Theatre, most of which are not located in Theatreland, arguably enjoy greater artistic prestige. These theatres stage a higher proportion of more demanding work, including Shakespeare, other classic plays and premieres of new plays by leading highbrow playwrights. Hit plays from the non-commercial theatres sometimes transfer to one of the commercial Theatreland houses for an extended second run.

The Royal Opera House is one of London's most famous theatres and widely regarded as one of the greatest opera houses in the world, comparable with the Palais Garnier, La Scala and the Metropolitan Opera House, New York. Commonly known simply as Covent Garden due to its location, it is unique to other West End theatres in many ways, not least in having three resident performance companies, The Royal Ballet, Royal Opera and a resident symphony orchestra. It has three performance spaces (19th Century Main Auditorium, Linbury Theatre and Clore Studio) and hosts guest performances from other leading opera, ballet and performance companies from around the world.