I've had a few people ask about building into hills and on uneven terrain, both here and on my Tumblr; so I thought I'd do up a quick pictorial .
This can also all be done with straight CFE, but I like using the Grid-Adjuster


NOTE: The height difference (between the top of the ground and the top of the wall) will be no less than 4-clicks once you start adjusting the lot/hill with CFE. The only way to work around that limitation is with the Grid-Adjuster (just don't CFE anything after using the Grid-Adjuster, or it will revert back to the 4-click difference.)

Please ask below if you have any questions. I am happy to help!

Awesome, thank you so much! I'll have to do some planning for my hill "cave" but it sounds like this method should at least get me close to what I want. :D

Have fun with it!