In the absence of staff, an emancipated but diligent house elf, giant leap forwards in robotic technology, mine would be a side entrance into a boot room which massive abouts of spaces for sports shoe & bag storage and underfloor heating so that kit abandoned on the floor magically dries. Importantly, this would be a separate entrance to the front door so that you're not constantly risking breaking your neck or apologising to visitors,
delivery drivers etc for the dump that is your entrance hall. The fact that the gorgeously proportioned entrance hall was one of the selling points and the beautiful tiles extortionate makes this situation particularly galling!