What is the procedure to obtain a Yellow Book for my house in Thailand?

I did it a decade ago so may have changed but best to ask at your local Amphur (Town Hall) as each is usually different. I do remember that the village head (poo Yai Baan) had to go with us and bring his blue book (as you have to do too). It’s wasn’t a ‘one time visit job’ but it might be easier now especially if the staff are used to dealing with the process.