On Sun, 22 Apr 2007 22:33:13 GMT, Mick6 wrote:

In article ,
"Dougal" wrote:

My elderly relatives need a single-story extension (say 12-30 m2 tbd) to
their small 2-storey semi. Roughly speaking, all that is needed is a rectangular habitable box
'bolted' on to the back of the house, with access via existing patio doors
(to be removed).

Maybe I've seen too many 'Grand Designs', but I was wondering if there are
viable pre-fabricated kit alternatives

Try googling "garden office"

Anna