Small Homes have limited space. In cities like Mumbai a small space of 7′ x 4′ (7 feet by 4 feet) is allotted for Toilet as well Bathroom combined. 7′ x 4′ is a standard dimensions.
Out of your space of 7′ x 4′ ;
3′ x 4′ is used for Toilet Seat. Toilet seat could be India or Western style commode. But both the styles require same amount of space.
Remaining space of 4′ x 4′ (4 feet by 4 feet) gets used for everything else. Your Mixture, bathroom diverter, Bathroom Shower comes here.
If your home has separate space for Bathroom & Toilet – renovation cost will get added for each space. Plumbing work, tilling work, wall work all gets added. However keeping in mind the costly real estate situation, cost of per sq. ft. is more important then cost of renovation.
If you are OK to combine Bathroom & Toilet, that’s a great deal. Because you have saved space. Every sq. ft. is precious 😉
A small corner basin can fit in this space but you have to adjust for it. If you prepared to crunch so many things within 7′ by 4′ then you can very well have all this in it.