[Wlodek]

D'uh! I have looked at your geodesic dome (in awe), but its main feature distracted me from what I was looking for ...

Thanks. The good thing with the demolition here is that it is only a small lean-to apex shed, so even in the worst case the damage will be limited. Also, the roof construction is very light, so I won't need pillars.

I am trying to work-out and visualise (with Sketch-up) how much I have to stick the dome out to comply with Building Regs. It will be also useful because the back of the shed won't be cut-off and I can dry my wood there (and have a good warm den too).

Best wishes,

W.