When the parliamentary office building, Portcullis House, was completed in August 2000 at a cost of £235m, it was predicted to last more than 120 years with lower maintenance costs thanks to the quality workmanship and premium materials.
Its glazed roof has been anything but maintenance-free, with officials reporting falling bolts, cracks and broken panes. In the latest incident last month, water poured into the atrium after a “huge bang”.
