Work on foyer reveals John Sainsbury’s note buried in extension to London’s National Gallery

Gabriele Finaldi, the gallery’s director, speaks of the opportunities and challenges that come with the sheer scale of the NG200 programme, and beyond

Plans to make the Grade I-listed museum wing more accessible and sustainable, described by some leading architects as "ill-judged" and "insensitive", approved by Westminster planning committee

Plus, contemporary art in Lagos and Chagall's falling angel

Timothy Sainsbury says he disagrees with the view that all of the functional parts of the building should be "preserved in aspic"

Architecture critic Hugh Pearman argues that the gallery is making irreversible changes to a Grade I listed building—while removing most of its early Renaissance collection from display until 2025