Could you put the laundry behind doors so that you won't see it with the walk through...by the way...I am just over the water in OZ, know what you mean by costs... will get some pics....this would be my option...just going on what you are saying.... The good thing about this is that you can shut the laundry away except for when you are washing...... I would have the washer with the dryer next to it if you can and put a bench over the top of the both of them....for this it is worth getting a front loader if you haven't already got one.. this will avoid the bench on the other side...it can all be contained and done on the one side of the laundry. Don't go for sliding doors ...the glass look great but they will need a bottom track and if they don't have one...they will move a lot....not great for this even though they look great. As for having the bench over the top of the washer and dryer, you can then have overhead shelving, does not need to be cupboards as the bifolds will hide what is in there...double cost other wise. hope this helps...Robyn

Third vote for getting a professional involved, but i'll still offer my layman's suggestion given that you're just soliciting general ideas at this point. If it was my space, I'd switch the bathroom and the laundry room around, keeping just one of the walls currently enclosing the toilet. Its hard to estimate precise measurements from the drawing, so it may not be feasible, but here's what i mean

This project required a small renovation, where my clients wanted to create something simple and light, without costing a fortune. In the guest bathroom we were able to leave the plumbing as is and worked on replacing the WC, Shower and Vanity. In the laundry the area in the room behind the counter, storage area was pushed back allowing for a larger space within the narrow room. A new door was put in and a new window. Before: After: This extension of space allowed for the guest bathroom to be extended out as well to allow for a larger vanity and all round larger and more accommodating space. The counter top in the laundry is bamboo, the simple black tiles above and perhaps later down the clients will put up cupboards and shelving as suggested. Before: After: The light grey ceramic tiles on the floor replaced the dark ones that made the space feel small and cramped. The white on the walls and new lighting give a totally different feel to the room and makes it a far more welcoming space to work in. Check entire project here!

Hi there! Based on what you've shared, it seems like you're facing a dilemma when it comes to the placement of your bathroom and laundry. If natural light and ventilation are a concern, I would recommend considering the use of highlight glazing in both rooms. By doing so, you can allow natural light to filter through both spaces, and the laundry's internal windows could provide additional light to the hallway. However, without seeing more of the floor plan and understanding the adjacent spaces, it's difficult to make more specific recommendations. While external windows are ideal for wet areas, it's not always feasible to add them to every room. But, there are other solutions to consider, such as frosted glazing in internal doors, that can still provide some level of natural light. Ultimately, I suggest consulting with a design professional to help you weigh your options and find a solution that works best for your needs and preferences. Good luck with your project!