Hello, this is the first of what I suspect will be many questions, as I feel decidedly clueless about anything to do with building.
Anyway, we are renovating our old (c. 30 years I think) extension with new floor, doors, etc etc. In the process of ripping out what's there, the builders have found two manhole covers - one just outside on the patio area, and one in the middle of the kitchen.
The patio area one is fine, we can work around plan to create brick boiler house shed thing there. The kitchen one though... from what I'd read, you aren't allowed now to build over a manhole. But obviously someone did, a long time ago - it's encased in concrete! So what do we do?