I have no problem in forwarding on the building spreadsheet but I have to stress that it only consists of the main headings of construction and the % of total build cost that goes into each heading. e.g Substructure 5%, Roof 7% etc. All you need to know is the sq.ft of the house and apply a cost/sq.ft, which is about €78-100 depending on location. The spreadhseet will not save you money but it will give you a rough idea of how much needs to go into each building element.