I'm not German but I think the Diplom is what you get when you're complete with all of your studies, right? I think that's equivalent to an M.Arch. The american B.Arch i think is more equivalent to a Vordiplom.

Yep, that's right - the iplom is what you get after 5 -6 Ys. of studies, so you can call it equivalent.
With a vordiplom however you will have a tough time finding a full-time Job. And: Having your diplom you have to work two years before you can call yourself architect. But that's like everywhere.
Why you're asking?

Yep, that's right - the diplom is what you get after 5 -6 Ys. of studies, so you can call it equivalent.
With a vordiplom however you will have a tough time finding a full-time Job. And: Having your diplom you have to work two years before you can call yourself architect. But that's like everywhere.
Why you're asking?

I was wondering if anyone has gotten an approved translation of their Diplom that states it is equivalent to a Masters. And of course I would be interested to know who translated it.

what do you mean by "approved translation"? If you are just applying for a job you can write on your cv Dipl.Ing. from TU wherever and in parentheses write "equivalent to U.S. MArch" or something similar (same thing if you are applying to grad school). If you are seeking professional registration in the U.S. with a Dipl.Ing. you'll have to check with NCARB what the requirements are for meeting equivalency with a US-American professional degree (I'm sure they have rules for this). If this is a visa issue, I don't know. Hope this helps.
viel Glueck

I once heard a story that some firms asked prospective German employees what that "diploma" thing is all about, since as they understood it having a "diploma" in something is like a weird badge of merit, like an extra or something, and were pretty surprised when dweeb tells them "no, it's my MA goddamnit".

there won't be no more Diplom though, as univ. got all BA/MA-fuckerized in the past year. Humboldt is rotating in his grave like a Broiler.