Foundation for garden room/office

Grz.26

Hello All,

I was after some advice please. I have my design in place for a new summer house, which incorporates a small brick wall; maybe 3/4 brick high then timber structure onto of that. but I am unsure on foundations and whether to:

a) Do a whole pad foundation.
b) Do a strip foundation.

And if you were to recommend a pad foundation would you put hardcore, sand, DPM, insulation then concrete? I would like to put underfloor heating in room.

Or do I do a strip foundation, if so, what depth, then excavate the floor and then add insulation, dpm etc?

Any advice would be welcomed.

The size would be 5m x 5m.

Many Thanks,

Richard.

Hong_Kong_Phooey.

What will your building inspector want?

System

Depends on the ground conditions really, that will determine which foundation will be most cost effective...

Grz.26

Okay... so it could be either or? Depending on site situ?