Canonbury kitchens
The kitchens we meet in Canonbury
Whatever you have read about splashback and upstand work in Canonbury, the only version that matters is the one measured against the kitchen you are standing in. Larger period houses where the kitchen has usually been moved into a rear extension at garden level, giving a squared-off room with a 3.5-4m run and a true island. The conversion flats off the main streets are the opposite job, a single 2.4m run in a former back bedroom with the boiler above it. None of that has to be decided before you get a price. It is what the survey is for.
Ceilings are generous and the rooms are narrow, so the runs are long, the aisle is tight and there is nowhere to stand a slab on edge. Height is set off the units and the hob, not off the tile line that was there before. Twenty millimetres of packing behind a panel is not a fix.
The party wall is the straightest surface in the house and everything else has moved away from it over a century. Lath-and-plaster on the party wall and the chimney breast returns almost never runs true, so a 100mm upstand bedded on silicone is the honest answer here, it rides the bow and hides the junction the worktop can never close on its own. The wall gets made good first or the gap shows.
On these streets the housing is Georgian square terrace, Victorian villa, Edwardian terrace and conversion flat. The wall build-up is different in each, and the scribe follows the wall.