Help. rented a property (new build) and found out it has not been signed off by building control. We don't want to risk living somewhere unsafe but what should we do?

[Intromum]

Hi there. We have recently signed a tenancy agreement for a flat in a new built property. After we signed the tenancy...we were asked by the agents to allow building control access in the forthcoming days as they are coming to expect the flats and their foundations. We are alarmed as inspecting foundations is the first thing that happens with building works. It sounds like the property had not been signed off by the building control and we have not been told of this. Has anyone had similar experience? Did you walk away from the contract or did you try and work things out with the landlord?

Really helpful comment given the issue is the legality of the position