Is it a good idea to brick this back door up for an open floor plan?

[Jacob Beg]

Hi All-

I am planning a rehab, and I am trying to replicate the attached kitchen. There are a number of issues that I hope to get some feedback on. As can be seen the stove/gas line and cabinetry is on the right hand side. Behind te cabinets and stove is the living room, my plan is to bring the stove and cabinetry to the left side which is the exterior wall with two large windows, so I can tear down that wall with the living room to create an open plan.  It would mean I would have to brick both, or at least one window to create enough space on the wall for cabinets. It's not ideal to block the windows, meaing no natural light but I can't hink of anything else. 

Additionally, that exterior door would have to be bricked to get the exact layout, and I am not sure if I need a backdoor by code, or that it's a good idea to brick a backdoor or more aptly a side door. While there is an exit door in the basement, and egress windows in the bedrooms and living room in the upper floor, I will lose this egress/side door. 

Any input on the said plan?

Thanks!