Abstract: An insulated concrete form for forming an insulated poured concrete wall, having an inside surface and an outside surface. The outside surface is held in a spaced-apart parallel relationship with the inside surface by a plurality of tie members attached perpendicularly to both the inside and outside surfaces. The inside surface is a single-sided conventional concrete formwork comprising a plurality of plywood boards having each a plurality of latch members for respectively engaging with a first end of each of the tie members. The outside surface comprises a plurality of juxtaposed insulating foam panels and a plurality of elongated vertically aligned connecting members, having each an I-shaped portion respectively enclosing two adjacent edges of a bordering pair of the juxtaposed insulating panels.