Bert Coules explained :
The floors are set unusually high above the basic ground level: the plans
show three steps, with the topmost one being one riser height below the
interior floor. That's to say four risers have to be negotiated to get
inside the house.

Would four steps mean going the steps to grab the door handle, pulling
the door open and having to reverse down the steps whilst pulling?
Seems wrong to me.