Hey Creativelychallenged - I just stumbled across your question, and your bathroom is probably finished by now. Sorry but Houzz doesn't seem to flag pros if you include their name in your question. But back to your question. Mid-century covers a lot of decades (depending on who you ask) and there are lots of flavours. A really good resource I have set up for mid-century bathroom inspiration is my Pinterest board with a collection of photos of unrenovated mid-century bathrooms. https://www.pinterest.com.au/secretdesign/bathrooms-original-mid-century-modern/ A lot of those bathrooms from the 1950's and 1960's use the classic gloss Johnsons ceramic tile in a stack bond pattern. Mostly in a square tile measuring 152 x 152 mm. Later bathrooms used a rectangular format tile in a stack bond pattern. I don't think I have ever seen a herringbone pattern mosaic used in an original mid-century bathroom on the wall. The tiny patterned mosaic tiles were generally used on the floor, often in a random looking pattern. In the later decades they did use mosaics on bathroom walls, but in a stack bond pattern, never herringbone. Sorry about the delay to your question, Dr Retro of Dr Retro House Calls/Dr Retro Virtual Visits

How ere you proposing to retain the 4th bedroom when you plan to turn it into a separate living area adjoining the kitchen? Your revised plan with the changes only shows the backend of the house, not the full floorplan. From that I assumed that the current 4th bedroom was being repurposed as a dining/living room and you were retaining the original 3 bedrooms. If you look at the original house fllorplan, it's a H shape with what appears to be two equal sized wings. One of them houses 3 bedrooms while the other the current kitchen, 4th bed/study and the dining room. Flipping the house into a mirror image will require moving the walls of the current dining/kitchen and study to create three bedrooms the same size as your existing ones. The kitchen would then be positioned in the [current] centre bedroom space with an open plan dining, living towards the rear. There is no need to install a U shaped kitchen as you currently have. A galley style that runs across the space will be more space efficient and give you a large island to work with. While the front part could be your 4th bedroom or you can relocate your current front living room to that space and put the forth bedroom where the current living area is. It's really not much different to the floorplan you have in mind, it's just a mirror image of it placing all the bedrooms in the south and living area's in the north as is desirable. Unless you are planning to move out during the build it's going to be difficult living in the middle of any renovation. Your builder will have to remove the rear wall of your house to extend and you'll be living in a house with tarps on the backend anyway. Any renovation can be staged to cause least inconvenience. But no matter what, changing the footprint of a house is always going to be a major hassle. Which is why a lot of people choose to move out and rent for the duration of the build.

Here are some tips for renovating a bathroom Plan ahead: Consider the layout and design of your bathroom, as well as your budget and timeline. Make a list of what you want to change or update, and prioritize your needs and wants. Hire a professional: If you're not comfortable or experienced with plumbing or electrical work, it's best to hire a licensed contractor or plumber to handle these tasks. Choose durable materials: When selecting materials for your bathroom, look for durable options that can withstand moisture and heat. This includes tiles, countertops, and fixtures. Save water: Consider installing low-flow toilets, faucets, and showerheads to help save water and reduce your utility bills. Add storage: Consider installing additional storage solutions, such as shelves, cabinets, or a medicine cabinet, to help declutter and organize your bathroom. Don't skimp on lighting: Proper lighting is essential in a bathroom, so consider installing multiple light sources, including overhead lighting, sconces, and a vanity light. Update the fixtures: Replacing old or outdated fixtures can give your bathroom a fresh, modern look. This includes the faucet, showerhead, and toilet handle. Invest in a good exhaust fan: A good exhaust fan is essential for removing moisture and odors from the bathroom. Make sure to choose one that is powerful enough for the size of your bathroom. Add a pop of color: Consider adding a pop of color with paint, towels, or accessories to give your bathroom a personal touch. Don't forget the details: Pay attention to the small details, such as the hardware, grout, and caulking, to ensure a polished, finished look.

I’d suggest you close door to wir and put a slider on the other and then open a door between wir and en-suite. This will allow you to access a bench and storage in wir.