In 218 we remained right thru it, cant remember if a row or two at the top were moved temporarily. It was a bit of a building site as you’d expect while being done.If I remember correctly it was only the top row/rows of the South Stand Level 2 which got moved for the redevelopment?
Probably similar for the North stand too I would imagine
Not exactly the same job as the south stand as the second tier will be extended rather than another tier added, whether that makes any difference I dont know