"She" had a flooring company round, who obviously don't want to take on the job, and who have failed to produce the promised estimate. They say the obviously gappy black glue under the tiles was a damp course, so any new tiles would need a layer of impervious gunge underneath.
About 5 or 6 years ago I went to somewhere like Poundland and replaced one broken tile with a 300 x 300 x 1mm stick-on tile. It has been excellent, is still stuck and looks fine.
I want to get something down by next week. The flooring company can't start till next year, and I expect their estimate for vinyl sheet flooring will be way over our budget.
Looking at a quick bodge of about 3 sq metres of stick on tiles, they all now seem to be 305x305, but do come in up to 1.5 mm thickness. Is there any real reason not to just grab a few boxes of these and stick them down before we level up the new washing machine on them?