I agree. A real estate agent told me that no bathtub can devalue a house and make it difficult to sell. Unless of course your area is more for singles/couples. I am about to renovate my bathroom and I am keeping the bath and making the shower bigger. I need to sacrifice the size of the cabinet/hand basin but with so many unique storage ideas out there, I will still have sufficient room for a family's bathroom needs.

Save the pink bathroom! The original floor and the pink bath are beautiful! And obviously appropriate to the era of your house. http://savethepinkbathrooms.com/ To give you a more spacious feel, have the door replaced with a cavity sliding door - it gives you an amazing amount of extra space, we did it in our bathroom I would replace the vanity, which is obviously not original, with a custom laminate vanity with cupboards underneath in pink (top) and grey (cupboard doors/sides) or even a boomerang pattern for the top (http://retrospaces.com.au/retro/images/laminates/Renovation/FirstLadyPink.jpg) have a skilled tiler repair any areas that need repairing and have the tiles professionally cleaned and re-grouted and re-do all of the silicone, Then replace all the tapwear with new chrome taps but in an appropriate style (like these for example http://www.caroma.com.au/bathrooms/taps/retro/retro-wall-top-assemblies) and a new glass shower screen. A really fresh coat of white paint (use the bathroom product), better lighting - put a light in above the mirror (http://www.ikea.com/au/en/catalog/products/00255303/) and a fan/heater/light in front of the vanity exactly above where you'll stand when you get out of the shower. If the mirror isn't in good shape (or it may be mirror doors on a cabinet? I can't tell) then think about replacing the mirror too. You'll save a heap of money over completely re-doing the bathroom and importantly you'll be in keeping with (and preserving) the midcentury design of your home.

Thanks for the measurements, there were a few missing that would have made it easier to be more precise, But I'am making suggestions on what I think might fit within the existing floor plan which you are trying to do. the only small extension is to fit the laundry into a shared family bathroom. As there is already a shower and toilet in the current laundry I think it would be wrong to move them as they are close to your new alfresco area for the family to have easy access when you have your get togethers. To try and keep the girls bedrooms a good size and together with the other two bedrooms I suggest working with the fireplace and making the current Bathroom and ensuite but with the ability to share the toilet with the girls during the night. I have added my beloved barn doors to close off the kitchen from the bedrooms and also to be able to leave open during the day for extra light., the planned deck with roof over will make the dining/study/kitchen darker so you might need to consider a sky light. Anyway just a few different ideas trying to work with and around special features cheers

We just finished renovating our 22 year old main bathroom that we included when we owner built our home. We originally had a massive corner bath complete with step to get in and not once in 22 years did we use it. At the opposite end of the bathroom was a much smaller shower which four of us used every day. When we decided to redo it from scratch, we swapped their positions, making the shower enormous and putting in a 1500mm free standing back to wall bath - ONLY because the bathroom is big. When we redo the second bathroom, which is much smaller, which has a shower in the bath, we are doing away with the bath altogether. Waste of space and money.