We are considering a wrap around kitchen extension, but have a basement egress we believe we can’t build over (see pics) as it is used for a play room. Any smart ideas of how this extension could work? Do we just need to leave a gap and extend to the side from say where the existing conservatory starts? Or could we move the egress? If we just use this room for storage does that make a difference to building regs? To note the house is terraced on the left and has side access on the right if looking at floor plan. Thanks