LA new homebuilding - is it really that long of a process?

This post is just out of curiosity. I just watched a YT news clip with Atlman (famous RE celeb) and he said in LA it takes ~3yrs to build a new development house with ~1yr for permitting. Is this accurate? If so, this is ridiculously high. Here in TX, with a similar comp I would expect in a LA new dev ($1MM+, 5000sqft+, etc) builders knock this out from permitting > sold or on market in 1year