We are building a small house (50 sqm), 1 meter higher than ground. All the cost (material and labor, rental Makro) for piles (5 piles each spot, I15 at 6m), pile caps and footing (20x45 cm) and floor concrete Cost ฿2600 per sqm. The rest of the house will cost vary, depends on type of roof, tiles, bathroom and walls (we do double wall).