Hi, we’re a family of 5. Me and my fiancee currently share a room with our almost 3 year old daughter, we bought a 3 bedroom terraced house in January, our son has the box room, and our autistic 5 year old daughter has her own room, we’re thinking ahead to how we could make it work bedroom wise, our loft isn’t an option, and splitting the rooms would mean splitting a window, and unsure if it would be safe fire regs wise. We can’t put our 3 year old in with our 5 year old because she isn’t safe to be left unsupervised. WWYD?