The plan is far from an architect's drawing, but its a start. Some queries...
Seems like front gate is opening outwards only, guessing from the position of stairs.
What about windows, don't see any?
Seems like you have left no space on either side for walkway? I think you need 5ft space on either side as per laws.
How many cars do you want in the porch?
Open area at the back is for washing? Space seems too small
What is location of bathroom and kitchen exhausts?
Underground water tank?
Overhead water tank?
Sewage/gutter?