Beautiful bathroom!! I would paint the walls off white and get a new pastel colored shower curtain. I love a light bathroom. Then use colorful pastel towels.

I think painting the walls would make a big difference. One thing to think about when considering gutting in the logistics and space. I realized that the size of my bathroom, the window and plumbing layout meant if I gutted and redid it, it would cost a lot of money for a not-very-big difference in result.

I would paint the walls and ceiling and then see how you feel about the original elements.

I feel like the wall could use some pattern and then a shower curtain in one of the colors from the pattern. For example, a pattern that combines green, lavender, white, a touch of black, maybe coral.

Those old tiles are a real bear to remove. It will cost more than you think. If they are in good shape I would decorate around them, as they are white and black, so classic.

I love this bathroom the way it is. The tiles are awesome!

yet what’s wrong with new that looks old?

Whats wrong is it is a complete waste of money when you already have old to start with. Removing bathroom tile IS gutting a bathroom. Say more about your style and what you wamt it to look like and we can give you tips on how to work with what you have. Beyond lavender walls, what do you like, want?

I love this bathroom.

Is that a huge crack in the floor?

I like the idea of a wallpaper, otherwise consider painting ceiling, walls and all trim the same white. Then infuse the room with shades of lavender (shower curtain, window treatment, rug and towels).

First question I'd want answered is does everything work? Are the plumbing and electrical in good working order? Are any of the tiles damaged or falling off? Is it easy to clean the tile and fixtures? If the answer is yes, and you are only speaking to looks, then I would definitely keep it as is. The dark paint on the doors is the worst look in my mind. I'd paint the doors white and get a new shower curtain as a first step. You might also consider wallpaper.

My 1920s home had all the original bathrooms when we purchased it many years ago. The hall bath had black and green tiles. Everything worked fine until it didn't, when the toilet kept getting clogged and the tub plumbing leaked into the kitchen downstairs. At that point, we had to gut it and replace everything. But we redid it in the same period as when the home was built, and it's been great since 1996. Still looks brand new.

lovely bathroom! I’d tone down all the contrast and remove the black - chops up a small space

Agree with @gurukaram - we had similar tiles in our older home that we were forced to remove (multiple large cracks throughout) - they were set into some sort of cement bed - bathroom was tiny and took a crew 3 days to get them out + deal with the subfloor - very $$$$ and very messy

Good catch AiFL that is a big issue if that is a crack. I think this is either keep it or gut it and if that is not a crack I say keep it , it is actually not bad at all. I do not like that intense purple for walls but asofter tone and anew shower curtain no black trim are all good ideas.I think I would choose the shower curtain first then use a color from it for the walls easier than the other way around.

If you are keeping the floor and want to ”lean in” to the Art Deco feel, here are some wallpapers from Spoonflower that can be lot of fun. (I would change the shower curtain to a pretty, simple white one.)

Staying with a black and white theme:

Bringing in another neutral color

I think I'd get rid of the color blocking, i.e. the black paint on the walls and doors. Paint it all white. and get white bath mats, too. If, as Diana says, everything is in good working order, I'd leave the rest alone. This is a classic Art Deco look that never goes out of style. Might be fun to get a white shower curtain made with a black border, like they did here:

Reaume Construction & Design · More Info

Or you could do a white shower curtain with black ball fringe.

Found this one on Etsy.

i am such a sucker for ball fringe 😍

I too noticed the crack. I'd touch it up with a bit of white paint dabbed carefully inside the crack and get another 50 years out of this bathroom. Not loving the black on the cabinet doors. Wallpaper above the tile would give the place a whole new feel.

Is this the only full bath in house? Is it used daily or an infrequent guest bath? How long do you plan to live in the house? What is your budget? Is the floor cracked from house settling? Is subfloor water damaged? What is estimated cost to repair subfloor and replace floor tile? Are toilet and sink chipped? Would you replace shower curtain with frameless glass bypass door? Is rest of house architectural features and fixtures from 1930s era or been updated? How updated is the kitchen?

I’m looking at your room and feeling that the black is making the room heavy, rather than giving it a bit of stylish pizzas. The black walls by themselves could give you the art deco pizzas. As others have suggested, paint out the black and white doors to just white and swap out the shower curtain for a plain white. Floor mats in white, towels could be white or black. Accessories such as liquid soap dispensers in a black.

Hmmmm pizzas ??? Pizzazz…… 😆