If a person decides to build a basement, you must first do it so that the cellar is not under the entire area of the house, but under it. However, this causes great difficulties when laying the foundation. The load on the foundation should be uniform, which means that the ribbons must be designed for it so that there are ledges on them, the number and height of which depend on the difference between the level of the basement and the foundation, in order to avoid gaps. The foundation in this case will be stepped, and its slope should be no more than 30º. The basement located under the part of the house is expensive, since the construction requires highly qualified workers. But the fact that the relief of the area on which the house is being built is a slope can play into the hands of the builders. This will help to make a basement under a part of the house without any difficulties and complex calculations.
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In the event that the basement is located under the part of the house, it can be made deeper, causing it to the foundation of that part of the house under which there is no basement. Having done this, you can avoid difficult work on the construction of a stepped foundation and a high staircase leading to the first floor. Parts of the house in this situation will be at different heights, which can be equated with the help of a staircase built between them.
But still, before deciding whether to build a basement or not, you need to pay attention to a number of factors that can interfere with its construction.
Firstly, if the house is located on the site next to the swamp or in places where the floods often happen, then having dug up the basement, the owners will constantly have to fight with high humidity, or even pump out water from the premises. Products stored in the cellar, this obviously will not benefit.
Secondly, if the site is too large, it’s easier to dig a basement separately from the house.
But if the site is small and you need to save a place for other buildings, then the basement can be safely done under the house.