I've drawn up a design, and the external measurement don't accurately measure the 230 external walls or show the 70 internal walls
 
	 
 
	The total sqm is also off
 
	 
 
	it should be from my calculations;
 
	 
 
	house: 345.314
 
	patio: 112.266
 
	 
 
	But that is based on the wrong external measurements
 
	 
 
	Please help
 
	 
 
	Don't worry about internal doors and windows .... i'll do that / fix them once the external measurement are correct
 
new design 2020.plan