I had to google the part you bolded... seems weird.. I wonder why they do that ?
"The blue or yellow tabien baan is not an important document for foreigners and most foreigners owning a condominium or a house (separate from the land) will have a (empty) blue house registration book and not a yellow book. The legal value for foreigners is very limited and generally there is no need or requirement to exchange a blue tabien baan for a yellow tabien baan. A yellow book does not confer any additional rights. However, foreigners married to a Thai national living in Thailand should have their name in the house book of the marital home. For Thais a house book's primary function is that it states his or her place of legal residence."
https://www.thailandlawonline.com/article-older-archive/thai-house-registration-and-resident-book