Have recently had a new double glazed upvc porch installed as I was fed up with the maintance for the wooden one. Its only been up a day and this morning I opened the front door into the porch to see the porch glazing panes top and bottom and side had a very thin layer of ice in the centre to about 3 inches away from the perimeter beading on the external / outside face! I also noted the UPVC frame also had evidence of a thin layer of ice.

The porch which is a two sided UPVC about 1Mtr x 1Mtr and approx 2Mtr high with a pitch tiled roof which is not insulated, (the garage wall makes up the fourth side). Glass is 28 thick 'K' type argon filled and the temperature last night reached approx -3C.

Can anyone advice what's happening and what I can do to elimate this.

In California it is quite normal for houses that have their air conditioning turned down to have condensation on the outside.
Due to cold conditions inside and humid air outside.
As a child I frequently had frozen condensation on the inside of my bedroom windows due to high humidity inside and freezing cold outside.
Its not a problem.
As a matter of interest next time its very cold and frosty, check your window sills to see if the frost has melted close to the windows - showing heat escaping through the inside sills and window frames .