Do I need a draftsman or an architect?

[Eddie Torres]

I am looking to build an ADU on my property. 750 sq ft unit, nothing fancy. I've spoke with a few architects so far and the going rate for an architect is around $10k. I've spoken to one guy who is a draftsman and he said he can do it for much less at about $2500. He was referred to me by 2 people and has also sent me samples of ADU plans he has previously drafted. He also used to work for the city where my home is located so he knows the code well. Does anyone have any experience with this? It's my understanding an architect is only needed on more complex and bigger projects. With that kind of price savings and his previous experience, I'm leaning toward hiring him. Does any see any issue with this? Thanks in advance.