This week we are starting on the top level of the walls up to the future roof level.  The wall on the left is about 12 centimeters higher than the wall on the right for water runoff.  You can't allow water to drain into your neighbors yard if you are on the lot line - and we are on the lot line on two sides.

We had to build an A-frame scaffold for solid support when working 3 meters up.  I also bought a 2x10 by 10 feet to use as a platform.  The thin 1x8 palm boards used for cement forms were not stable enough.