Villa BOQ details

in the drawings, I need you to add references that correspond to the BOQ I provided. For each BOQ item, I want to be able to trace exactly how the quantity was measured from the drawings. For example, if the quantity for a BOQ item is 60 m², I need to know exactly how you arrived at that number. Please show the complete calculation step by step, including all dimensions, formulas, and assumptions. Every number used in the calculation must be traceable to the drawings. I need to know where each dimension comes from (drawing number, grid line, room, wall, or any other reference) so that I can manually verify or recalculate the quantity whenever needed. The purpose of this is not only to receive the final quantities, but also to fully understand how every quantity has been measured. I may need to review these quantities with the contractor in the future, and I want to be able to discuss any discrepancies confidently using clear calculations and drawing references. I don’t want to rely on someone else’s figures without understanding how they were obtained. I want to be able to verify every quantity myself and ensure that any discussions or negotiations are based on documented evidence and accurate measurements. The final deliverable should be fully transparent and easy to audit, with every quantity linked to the relevant drawing references and detailed calculations.