Tiny, tiny fiddly details - thank heavens one of us (R) has an eye for minutiae. He's sorting out our electrical system at the moment - taking a break from building The Wall. Only 16 days till the frame comes. Another meeting with the Building Control Officer, our new best friend, tomorrow.

I am sending letters and emails - sorting out a mortgage, the final final (ha!) specification, the last details of the frame design to the manufacturers, and making sure the bricklayer has all the stuff he needs for a week tomorrow when (God willing) he arrives on site with his trowel and assistant.

Airtightness is still at the top of the agenda but I am getting a lot of help from fellow members of the Association of Environmentally Conscious Building (AECB) which has a great forum.