Everyone will agree that the main thing in the construction site is the right foundation, since in the finished house its capital alteration will be comparable to new construction. The problem is that the universal correct foundation simply does not exist, and it should be designed and erected not only in accordance with the type of future house, but also taking into account the structure and features of the soil. Hot disputes do not subside on geological research. Everyone refers to their experience. But it is one thing to build a wooden house without reconnaissance on gravel-sand soil, and it’s quite another to decide to build a multi-storey cottage, houses with a basement or basement on a area with complex soil.