Stairs to Loft/Attic Access

[Account Closed]

We have a loft/attic in the granny unit ADU with 4 feet headroom. I am considering putting a mattress there and convert that into sleeping area (similar to the 3rd image)

I found some ideas online to access the loft - however I don't believe any of these are built to code?

I am planing to use this space as airbnb for Corporate rentals (30+ days). This ADU has 1 bedroom 1 bath & the attic/loft will be an extra space.

Should I even bother using the loft/attic as an extra sleeping area for the tenants? Will this be a major liability issue down the road? 

Also I am in the SF Bay Area which is very tenant friendly so looking for guidance.

[John A Murray]

Are you interested in charging more after you "add" a bedroom? Are more people living in your ADU acceptable to you? If both answers are yes then go for it. Perfect for a single parent with one child, don't know about 2 adult non-related co-workers on a corporate rental. 4 feet is not very high; see for yourself with a tape measure.