I just figured it out: This person is from India (hence no bathtubs - these are wetrooms w/ shower only and a floor drain) and since this is a corner lot hemmed in by neighboring houses, OTS = Open To Sky... ...and that massive staircase probably goes up to the roof where they have their only outdoor space as well as space for hanging laundry, etc. IMO, putting the car on the exposed corner is the worst use of space and light - I'd stash the car on another side against the neighbor's house where there's no light - locating the public rooms and the kitchen along the front of the house and the bedrooms in the back where they don't necessarily need daylight - perhaps through the use of clerestory windows into the public rooms, the light can be borrowed for the center bedroom... Either way, Inkwitch is right (if a bit abrupt) I'd get a new architect who has some talent for efficient small space design to do your home.

I think it would be fine if the cupboards match or atleast are close enough. Its a good idea to put them across from one another so to balance out the room, or atleast consider the balance when placing your furniture. In the end if it is practical and comfortable, you can always work on making it look pretty

Its a master bedroom. I think there would b no use of uploading the photograph as its under Construction. Its not even painted yet. So i have many options . And i want a sitting arrangement in my room and obviously a bed.

There are so many wall colours that would work with your neutral furniture, that the first thing to do would be to consider what colours you might want to use in the rooms. Look for inspiration pictures and create an idea book, then use what you like to help you choose rugs, drapes and bedding before choosing the paint colour. Do you have any existing art that you want to use? That could give you clues for fabric colours and style. I wouldn't use the same colour scheme for the two bedrooms, exactly, although I might try to make them look similar by using some colours in common and keeping them in the same style. On the other hand, if you have a child who has strong ideas I'd say let him or her have considerable say in the matter for that bedroom (just this side of reason).