Just an FYI;
When I was at Chaengwattana Immigration's yesterday for my weekly visit, I stopped into section J-1 the section that does TM.30's at to see how people "self file".
You take your lease contract and your passport in with a filled out TM.30 form. If you're self reporting you don't need your land lord's thai i/d or the house book listing of where you live.
If you are bringing the form in for your land lord you do need copies of their i/d and the house book.
I
f you are doing it after the 24 hour window you have to file a TM.30 you get fined 800baht.
While I was there I saw a few thais trickling in and filing TM.30's but no foreigners.
At this time a TM.30 is NOT required to do an extension, a 90 day report or a re-entry permit out at Chaengwattana but it IS needed to apply for an initial 90 day Non-Immigrant visa in section C-1.
Just wanted to let people know how to do it in Bangkok.
I was thinking of going out and self filing a TM.30 just in case they ever do start being hard core about it.
Good Luck (y)