Not just the English record, but a world record too.
Though it would be smashed a year later when Hans Jeppson moved to Napoli.
Incredibly, Sewell was the last British player to attract a world record transfer fee for 45 years (until Shearer moved to Newcastle).
The former site itself is pretty much the width of the current Hillsborough footprint.
But for access purposes alone, I suspect the club would also acquire the current industrial units on Grange Mill Lane & Blackburn Rd, which would make it plenty wide enough.