5th Floor?

I believe that once they gave us basements, that fifth floor was no longer available. I could be wrong.

I don't think you could ever build a fifth floor, only four floors up and four floors down into the basement. You could probably add a really tall foundation and build livable floors on top of that.

We definitely need 1 more floor at least!

You could terrain sculpt a tall hill and build your light house on top of it. Seen many images of shorter lighthouses built on top of tall rocky hills and I think they look pretty cool.

Deleted - didn't know my original comment referred to Sims 2.

Nope. Only 4 above ground & 4 below ground.

You could build a basement, delete ceilings around it, try to mess with foundations to make it look better?

"SERVERFRA;c-18219239" wrote:
Nope. Only 4 above ground & 4 below ground.

Did they add the fourth floor at some point? I watched Jack Septic Eye's Sims 4 series and he was gutted his house could only go up to three levels at the time in 2015.

Make the lighthouse slimmer, it will look taller. Assuming you already use the tallest rooms. Also raising ground level should raise the build, but I never tested. Like others suggest raising the foundation will help too. To avoid spending the top floor on the light function, see if it would be possible using a lamp object on top, that you of course will enlarge until it's super huge :).