How To Make A Basement In Sims 4?

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Author: Stefan
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About Basements in Sims 4

Believe it or not, basements weren’t initially a part of Sims 4. When the game was first released, simmers had no option to build below the first floor. Instead, their house could only go up. However, the developers of the game later added the basement option in a patch, and that’s why now we can build basements on top of regular floors. In this post, I’ll talk about how to make a basement in Sims 4.

But first of all, what are basements and why would you like to build one?

Like in the real world, a basement in Sims 4 can be used for many different reasons. The way most people use basements is to store their belongings when they don’t need them. But most simmers use the basement option in Sims 4 to create more rooms in their house. These underground rooms can be super cool, especially if you make them hidden.

And so, I always build basements in all of my houses. Sometimes I don’t decorate them completely, but I often include a room or two where my Sims can go and hide from the world.

That said, let’s see how you can make a basement in Sims 4!

Check how to use floor plans in Sims 4!

How to Make a Basement in Sims 4?

Let’s start by explaining what the basement tool is in Sims 4. 

The basement tool allows you to build an underground layer in TS4, right below the surface. You can use the entire lot to build a basement, so not just your house. Your Sims can visit these underground layers via stairs, just like they would the second or the third floor of your house.

So, how do you make a basement in Sims 4?

You have 2 ways of making a basement in The Sims 4. First, you need to select the Basement Tool from the “Walls and Empty Rooms” category and drag it across your lot. Or you can go down to the lower floor of your lot and use a regular Wall tool to create the rooms in your basements.

Now, there’s no clear recommendation on which method you should use. Both ways do the same job essentially but they approach the building of basements from different angles. So, when should you use which method?

You should use the Basement tool if you’re making a basement after you’ve built your house. And here’s why.

The basement tool allows you to build the walls and rooms of your basement while looking at your house on the surface. This helps you aline the basement walls with your house walls.

On the other hand, you should use the second method if you’re only interested in building a basement. By going below the surface first and then structuring your basement, you give yourself the freedom to create whatever you like. So if you don’t want to match your basement with your house on the surface, build it separately.

Keep in mind that you can build 2 floors beneath the surface.

And that’s how to make a basement in Sims 4!

Learn how to safely remove the floor in SIms 4!


Once you’ve created a basement in TS4 you’ll know the advantages of having one. I recently stumbled across this article by EA on tips and tricks for building basements. You can definitely check it if you want to know how the creators of the game use this tool. But it’s up to you and your creativity to create the best possible basement! 

Happy simming.

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