Can you share a plan from your architect?

He hasn’t drawn this one yet. I only have prior iterations so far so don’t think that would be helpful

IMO 10' ceiling in abedroomwith the ret 8' is odd and for sure IMO not worth the extra money either . I would ike to see the exterior with this addition drawn in . I never understand jigs and jogs on exteriors and I would like to see the whole house layout to even begin to figure out this part.. The gray part says 12-15 ft vault then you are changing that . Vaulted ceilings create issues with heatng , cooling and noise I need to see the whole house please and really the exterior drawings since the tub bump out is very odd since with some rework of space that could easilt have gone in the bathroom with no silly bump out

This is our inspiration pic. The 10ft ceiling in the bedroom is because we are adding an addition so we were told it doesn’t have to be the same height. Not a deal breaker for us though. I think the “silly little bump out” adds character but to each their own.

The footprint of the addition (yellow) doesn't make sense when considering an existing house. For example, how do you have a hallway that is split where you hold up a 2nd floor above?

A professional drawing, with accompanying existing pictures, sure helps to visualize what is going on.

I need to see your house as it is now from the exterior to actually understand the inspiration pic . I do not understand the variance comment since you will need one for the addition don't you??

It would be much more helpful if you drew a scaled sketch of the first floor + added dimensions for all walls/windows/doors/doorways/etc.

You could then use different colored pens (highlighters) to mark on the drawing the different areas that you want us to understand.

Either use graph paper or a ruler (scale - 1/4"=1'). Without that drawing, you won''t receive much assistance.

Why is it when OPs ask questions they do not come back to read answers or provide any more info.