Don’t want to pour cold water on your recent purchase but you may have bought the wrong house if you need a fourth bedroom on that floor. I can only see making the small bedroom into the bathroom, then combine the bathroom and adjacent bedroom and divide into three bedrooms each with a window. The landing would need to be reconfigured to fit in an extra door. Moving services will be costly and you may end up with one good bedroom and three small undesirable rooms. Maybe consider the loft space as a viable alternative. Hope you find a solution.

I would also question the ratio of one bathroom for four bedrooms. You might need to split the large bathroom into two smaller ones, but that limits your options for creating a fourth bedroom. Without the dimensions, it is hard to know what is feasible.

Thank you for your inputs.

Yes it is challenging, not that I can't live with 3 bedroom, it is not a deal breaker but what I find quite a waste is the size of that bathroom, quite huge. So trying to think of different solutions, may even be a studio in between the bathroom and the main bedroom.

I think it depends to an extent on how many bedrooms you actually need. Also, whether you plan to live there for a long time or are more concerned about resale value. For example, you could split the bathroom into two: one en suite and one shared bathroom. To me, the bedroom in the bottom left already looks very small and might be well suited to an office or a studio. But then you are left with only two bedrooms. That would be fine for me, but might not work for you.

Yes, the bath looks large and you may not be a person who likes a bathroom spa sactuary however leaving the size as is could give you an option to consider a bathroom laundry combination upstairs. Taking the laundry upstairs may free up the use of space in the kitchen or utility area. I get the sense that you would like to make the space work harder in the home.

You might be able to squeeze a bathroom between the two large bedrooms, between the fireplaces and with no windows. This leaves the windows free at the front and rear for the bedrooms

Can you provide dimensions? There is a minimum size below which a room just won't work so it is really not possible to tell whether any of the rooms could be reduced to accommodate a bathroom without this info?

Yes the idea is to make better use of the space, even an utility room may work, as I said I find it a waste to have that size of bathroom. One of my concerns is that the wall between the bedroom and bathroom may be a bearing wall, something I need to find out. Here is the plan with the dimensions, sorry handwritten:

Swap the bathroom with the small bedroom. Are there other houses on the street you can look at? I'm sceptical that the house was built that way. You may find that the drain lines are still accessible.

You will need to utilise some steel to support any sections of loading bearing wall that you need to remove. suggestion for layout below

Thanks again for all the suggestions.

I think the main issue to me is the layout, I may stick to the 3 bedrooms layout but will move and downsize the bathroom to the opposite wall to where it is now and make bedroom 2 a bit bigger and in a better shape to what it is now.

Personally I think that you will end up with four very small bedrooms and none will be particularly good.

In my opinion you should make the bathroom smaller and the back bedroom better.

You could even add an Ensuite.

If you are able to remove the chimney breasts that will also help make rooms bigger.

Thank you Jonathan, that is a very good idea!

Apologies for the late reply I just seen the comment now.