I am planning on working on my ground-floor kitchen floor. It's at the back of a typical mid terrace victorian house. The problems are:
1. The concrete under the vinyl is damp
2. The floor is not even or level
3. The floor level is 7 inches lower than the rest of the ground floor - only a cosmetic point
The rest of the ground floor has suspended floor boards. I am thinking of putting in a suspended floor in the kitchen with insulation between the timbers and a water underfloor heating system. Above the boards I would have board and then floor tiles. Is this wise? What should I do to prevent the damp coming further up?