Architecturally there are so many things that are wrong about this building. But at the same time, there are so many nice surprises - like the fall of light on the building, the level of craftsmanship; the scale, even.
But the biggest surprise of all is Jo who, as a working mother with no help and no experience, made blunder after blunder - yet emerged from this messy project quietly triumphant, so that she and Shaun still have the energy and the passion to carry on.
There is still a chance that they can turn this house into the loving pastiche they want it to be.