Yes 16 square feet plus 5 square inches. I think.

If the floor extends into it, its a bay with windows instead of a bay window so check the intent of the ordinance.

Assuming the angle of the bay is 45 deg., the floor area of the bay in your drawing is 16.42 s.f. but what you need to know is the maximum length allowed.

15 s.f. is 2,160 sq in. Divide it by 24" and subtract 24" to get 66" which is 5'-6" instead of the 6-2 1/2" dimension in the drawing. In other words, you need to shorten the bay by 8 1/2".

You might not need to change the center window rough opening width since it was too small in the original drawing.

I don't know how a 14" LVL would fit in the floor framing but I suspect it could be 3 1/2" x 11 7/8" unless this is an unusually tall or wide building.

I don’t like bay windows and would need to see where this one is going before commenting on size .

The OP is looking for the maximum width allowed by the zoning ordinance rather than a design crit although it might be wise to submit the design in case something has been overlooked.

Bay windows (without a floor) can appear weak and tacked on but bays (with a floor) can be strong and effective architectural features.

2'-0"(6'-2 1/2" + 2'-0") = 16.37 net square feet

Thanks Mark. I still would like to see where it is going before the OP makes a huge mistake,

I hate it when zoning attempts to dictate architectural deign.

HU-999535753 one would assume they have figured this out in the 5 years sine the post was made........................

just a sp*mmer