You can do this in two ways.
Sims 4 basement floor.
Select that and start dragging away your basement will be built under the level you re currently on.
For this your underground structure must have stairs.
On your lot use either the basement room tool to create a basement or navigate to the basement level with the page down button and use the standard room tool to create a room.
The latest patch for the sims 4 includes basements so i thought it would be great to make a walkthrough video which shows how the basements work and how to u.
Check the patch notes out here.
Sims 4 comes with new build mode function of basements.
Discuss episode 2 here.
Head to build mode by clicking the icon on the top right or pressing b on your keyboard while in live mode.
Basements can be built underneath some buildings in the sims 2 and the sims 3 by using the foundation tool or by using the dedicated basement tool in patched versions of the sims 3 and the sims 4.
Basement building and tricks the sims 3 tutorials multi floor homes how to create a split level room sims sims 4 basement mod with create dream rooms irremovable basement flooring how to delete basement ceilings.
Now when you access lower level the size.
Open basement or split basement.
You can add 2 additional floors using the basement tool.
July 23 a patch for the sims 4 is ready for you to install it.
A basement in the sims 4 basements are stories of a building built partially or completely underground or below the ground floor of a building.
The sims spark d is here.
Are you ready.
To build a basement using the tool simply click on the tool and then click and drag on the area of the house you d like to install the basement beneath.
The basement tool allows you to add 2 additional floors to your structure underground for a total of 6 floors.
From there you will see a new basement tool right near the build room tool.