CornyCob

Thanks for the detailed reply. Just check and all the windows comply with the minimum areas and dimensions but I'm a bit unclear on part iii: 'iii. The bottom of the openable area is a maximum of 1100mm above the floor.' All the windows are approximately 1100mm to cill level from the floor, but the window frame then sits above this meaning it's probably ~1180mm to the actual openable area. How strict are building control likely to be on enforcing this/does anyone actually check exact heights to each frame?

We're looking to take out the load bearing wall between our kitchen and dining room, block up the external side door in the kitchen and add a new internal door into the garage (as per plans below). I understand we will need buildings regs approval for the works but was just wondering if there's anything beyond the expected that may be a stumbling block? Particularly with respect to fire regs as the stairs would now be in the kitchen diner (it's a 2 storey detached house) and whether blocking up the side door would impact this? The staircase is currently not enclosed but is open within the dining room and there are double patio doors into the garden at the rear of the dining room. I understand we will need the standard structural calcs for the RSJ and a self closing FD30 door into the garage with a 100mm step but is there anything else I'm missing? Thanks in advance.