St Paul Insurance - Gracechurch St, EC1 St Paul Insurance required flexible, high specification office space to bring together at one location four recent company acquisitions. The design allowed the companies to operate individually at first with a phased merger. This was a challenging long term project to manage, which required the highest level of craftsmanship to ensure a seamless completion. St Paul's Insurance - Leadenhall. St Paul's Insurance - Lime Street. St Paul's Insurance - Alie Street. Back to Special Projects.