Well, I did a trial with a few tiles and then covered them with polyurethane. The trial didn't necessarily go entirely to plan but I was able to establish that PU will be too soft. Epoxy is likely to yellow even indoors, so that leaves me with the following solution: 1. make the tiles thicker (not a big deal) use tile selection and a thicker tile bed to enable a relatively flat surface to be made 3. seal it with a thin polyurethane to protect from mess Thanks for the contributions.

Either a niche (rendered) for a statue (I can see your gnome!) or plants or a niche with decorative picture tiles such as the portuguese do. Or a cupboard for umbrellas and shoes!

Yes, this is very much a 'how long is a piece of string' question! And the answer is probably very much a 'you get what you pay for' answer! We have just built a house and paid in the vicinity 0f $1800/m2 - the builder we used has 3 lots of 'specs' for houses - basically the lower budget, the middle, and the higher end. For our given floor plan they could quote on each of the specs and we went with the middle one. This involve things like the quality of the fittings/appliances etc. eg. with the low spec we would have got a basic kitchen with formica benchtops, the middle spec included soft-close drawers and hinges with stone benchtops etc and it was the same for all the fittings throughout the house - toilets/vanities/laundry fit out/quality of carpet/type of concrete for drive etc. A word of warning - we had a friend who was very happy because he built a house for just over $1000/m2 - but you could tell! It looked all fine when it was brand new but after a few months you could tell the poor quality of some fittings. And the carpets were already looking worn! so - you get what you pay for.

I wouldn't use putty though. Spac filler perhaps? But honestly, it would take a huge amount of work. If you paint the walls a mid range colour (darker colours hide sins), or at least a fresh coat of paint, add your furniture and style nicely, the rooms would look lovely and those wretched cover strips would become much less noticeable. Why not try living with them for a while and see if you still feel the same?