divingcardinal, they have these things made out of cloth called "curtains". You pull them closed when things get too shiny. Or this other weird thing called a "blind" that goes straight up and down. Also very effective at blocking the light sometimes while letting it stream in unimpeded at others. To the OP - while the idea of enclosing the porch isn't horrible, it really doesn't look all that wide, enough to make it practical as a laundry room, unless you could put stacked units at the far end. Not sure where that is in relation to the window, which I absolutely WOULD NOT want to lose in the kitchen. However a better solution seems to me to be to fix the basement stairs. If they are SO narrow and/or shallow that a young person such as yourself wouldn't feel safe going up and down them with a basket of laundry, they're too narrow/shallow to be safe in any case. I would rather invest the reno money in fixing those stairs, give them a landing and a turn if necessary. I don't know what kind of space you have down there but if the stairs are as bad as you seem to imply, you won't use that space much, if at all. Plus I would worry about little kids and steep/narrow stairs. I'm 60 and if I had a basement that is where I would want the laundry area to be. Preferably with a built in floor drain. That would give me the space to have an actual laundry tub for the washer to drain into instead of those stupid little plastic bins they mount behind the drywall these days. Plus, laundry tubs are SOOOO useful for so many reasons. Even if they are in the basement.

The toilet is at the far right side in the back. The vanity is a stainless steel open console with a granite top along the right side so the tile along the right side will be visible. The shower base will have a glass enclosure with the shower entrance from the side away from the door. Here is an early version which gives a rough idea though the shower size is not accurate, and the vanity I purchased has a single sink and is a bit smaller. If the layout is shifted to have a full tile next to the shower, I then end up with 2 1/2" wide cuts all along one side. Since the vanity is open, the right side will not be buried at all. The left side is behind the tub and behind the door but still not exactly buried and a 2 1/2" strip seems very bad unless it is totally hidden.

I don't really see a cost/benefit in moving everything around. I think the best improvement for you money is to move the door down about two feet (sorry- I'm horrible with metric) and put a storage cabinet where the door presently is. In this configuration, the toilet is not visible when the door is open. This solution is a lot less expensive and the construction will be a lot less disruptive than anything major.

Unfortunately, unless you have a written contract with specific delineations of where the tile joints were supposed to go, then it is just your words against each other. I would highly suggest getting a written contract with the tiler doing your bathroom and also providing them with a drawing of your desired tile layouts in the space before providing any payment. You can probably do the drawings yourself if you can measure the bathroom and know the sizes of the tile, or there are various online freelancer services where you could have someone draw up what you want precisely if you don't feel comfortable doing it yourself. (This is assuming you do not have a general contractor you're working with who contracts the trades for you. If you do, talk to them about the tile layout.)