Need to build small half washroom/powder room

[muzokh]

Hi
We have 37 w×70 inch long space. My question is that can I build small half washroom/powder room in this little space. If yes then please provide ideas.
My other question is that from where I can buy small vanity/ sink less than 15 inch width.

 

[Snoonyb]

It's very easy for you to do a one line drawing of the area, and show what you want.

 

[nealtw]

 

[Snoonyb]

The OP "didn't" say it was to be permitted, did they.