While foundations can now be much higher that ever before, there is still a limit to how high they can become. Clicking on this and dragging it up or down will change the height of your foundations. You will see that a widget appears in the centre of the room. To adjust the height of your foundations, simply click on the room (or block of rooms) you wish you alter.

In order to work better with the terrain manipulation tools, as of the November 2018 patch, the way foundations work in Game has altered. A high level of customisation is still possible. Although technically a limitation, there are so many topography lines that this will not feel at all restrictive. This tool will automatically snap to these lines. You are only able to flatten to heights indicated by the topography lines. Moving your cursor up, down and across the lot will flatten different areas of the lot to different heights. Like the other tools, Flatten Terrain works by clicking and holding down the left-hand mouse button. This tool will flatten the terrain to the height/depth of the first clicked area. The Flatten Terrain Tool will allow you to create flat spaces at any height/depth on your lot. This tool is particularly useful for creating less harsh lines and making your terrain look more natural.

This tool also works by clicking and holding down the left-hand mouse button. This tool works by taking the average height of all terrain within the space outlined by the brush and altering the terrain, slowly, to match that height. The Smooth Terrain Tool is used to decrease the steepness of terrain on your lot.

Sims 4 different foundation heights mod