In London there is still confusion over the London Building Act and the national Building Regulations.

The Building Act 1984 applied a uniform system of building control over the country, bringing to an end the Inner London Regulation and their supervisors, the "district surveyors".

Yet some aspects of the London Building Act are still active, for which application still needs to be made. These should be reviewed and rolled up into the new Part B for use across the country.

All of the country's authorities now use the term BCO for their building control officers, with the exception of a few in the depths of inner London where traditions are hard to update, and the term DS is still wrongly used by the architect and council staff.

Nick Dunning, London