So, yeah. I'm still (very) new to modding, and now I'm stuck at one thing, find a Lot-ID (the 0x0000...). Where can I see Lot-ID for all worlds?

I felt stupid...
^_^

Please be a bit more specific. In what context do you wanne see the lot ids?

To fix some auto-placement. I know there's anak_ponti's mod to fix EP2 lot auto-placement, but I have some other places that I think are more, appropriate, to those lots. So, I want to see the lot id in Sunset Valley. I want to know the lot id of this empty lot, or this City Hall lot, or etc.
Where can I find it?

LotId is an internal field of the Lot class which is not supposed to be seen with vanilla means. You can access it with a scripting mod, but the context matters. It's easy in live mode, kinda difficult in build mode and probably seriously painful in edit town mode. Whether a lot is empty or not, matters as well.

So, how?

First, learn script modding. Then we can talk about specifics unless you can see how to do it on your own then.

I know it's been 12 years, but I found an actually working method:

1) Install NRaas Debug Enabler (a mod).
2) Enter a world.
3) Be in Live Mode (which means that brand new saves/worlds need to pick a household for this).
4) There should be at least 1 item on the lot (Don't worry, this won't change the ID), for instance one wall.
5) Zoom out, click on the map icon of the lot > NRaas > Debug Enabler > Options: > Show Lot Id.



Certainly much easier than various other guides I found online, most of which involved CAW and UNKN stuff that wasn't anywhere close to working.