Depends upon the current condition and reason for change.

I disagree with the advice above, the bathroom door that is in the passage should be closed. The reason for this is that you already have a bedroom without an attached bathroom. If you go by the advice above you will then have two bedrooms without an attached bathroom. Its not ideal. Also, you havent told us for which uses are the other two bedrooms. Are there going to be old parents in the bedroom with the bathroom or kids or are you going to use this as a guest bedroom? If you close the door in the passage you can have a bigger vanity by moving the WC behind the door that is from the bedroom side. This is also good because you should never have a bathroom door with a view of the WC. The WC is a very private spot and there shouldnt be a direct view of it from the room. Also we tend to spend more time sitting on the potty than washing hands, looking at ourselves or taking a bath. Once you move the WC you can have the vanity extending till the wall and will be 2.5x bigger than what you currently have.

Bathroom Renovation project at Sinhgad road Pune

Hello Ashish, Here are the few points you should take care of, 1) How to utilize the space optimally - You must segregate the wet and dry spaces, Select the sanitary ware you are going to use i.e if you want rain shower then you have to check the height, water force in the bathroom, all about the outlets if you can change the positions, etc. 2) How to save cost - from the first point explained i.e. all about the materials. You can calculate the budget and do the changes accordingly in the beginning itself. Once finalized, try not to make any change as this will escalate the cost. 3) How to illuminate it well - Now a days there are lot many options available in the market like profile light, pendent light, cove light, etc. 4) How much space for bathing cubicle - Minimum 3' x 3' space is required for the cubicle. You can contact us for any other query.