When commissioning a wooden house, we need to be mindful of costs because they can cause us further inconvenience. In my experience, these costs lie in unspecified plans and term plans of project construction. I’ll tell you a story of a customer who decided to commission a wooden house. A young couple had already taken a bank loan and had also saved some money themselves so that they could finally afford their dream house. We were just one of the subcontractors for their project. They had already given us their plans and ordered the wooden parts, and as far as I could see, everything was going smoothly. The problem arose when the subcontractors wanted to make the base plate: they saw that the terrain was beginning to sink. The earthworks subcontractors couldn’t do anything but set a new price for the customer and wait. The customer had actually received a confirmation from the seller that the ground was solid, so they didn’t conduct any soil sampling. That was a big mistake, of course. After soil sampling, they would have known that the soil didn’t contain rocks, and that soil probes should have been set up. Since they commissioned a wooden house, the base plate did not cost them that much because wooden houses are a light construction. But they had to pay EUR 10,000 more than they had initially planned. So we suggest that you always check the composition of the soil before you take interest in it. Or, as you plan your budget for a turn-key house, take into account an extra 10% in case of additional unforeseen expenses.