Is correct this sentence "there are too dirty rooms in these hotels" ?
Nope sorry. That is a very Czech word order.
Why not "the rooms in these hotels are very dirty"? I thought "příliš" could be "too" or "very"?
very (much) is different from too (much) in English and therefore has different Czech translations.
What is the difference between jsou pokoje and pokoje jsou in this sentence order?
You should mention the whole sentences. It sounds much better with jsou in the second position. Or with "pokoje v těchto hotelech"="the rooms in these hotels".
So using the locative, is the locative statement generally placed first in the sentence, like this one?