view the rest of the comments
Ask Lemmy
A Fediverse community for open-ended, thought provoking questions
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
You know, why don't we have second basements?
My best friends had two attics, one for the garage and one for the regular home. They were in no way connected.
I meant: two levels below each other, down and deeper down...
Oh. In that case, it's probably because of foundation. A basement can't just be dug up out of the ground, it needs to be built in a certain area where you could do that safely and efficiently. If it were possible, I'm certain the bomb shelter boom during the cold war would've birthed some second basement levels.
Not sure if this counts, but my best friends technically have one of these as well, they have a semi-homemade indoor pool in the basement and it's just deep enough to contain a hidden door on the side of its interior, which makes it "below" the regular basement. I'm told it's an emergency tunnel.
Several factors, depending on geology:
Cost of excavation and supporting the sides from extra earth pushing in.
Bedrock not being deep enough.
Running into the water table, or risk of flooding.
Cheaper to at another floor on top, which adds more desirable floor space.
Tall commercial buildings with sub-basements already have much deeper foundations than that. And their land is much more expensive.