Hi Abraham,
Thank you for your thorough response! There is so much to think about. I've tried to respond to most of your points.
a few questions. Your earth looks very sandy, have you made a test to see what is its composition? Best method is mixing it in a jar of water and letting it decant for 24 hours. You will see layers of your earth composition.
This is actually just construction sand.
I am unfamiliar with El Cairo climate, but being a coastal city I don't think your temperatures will be too extreme, will they? Is there a chance of frost? How long is your dry season? How hot is your hot season?
We're 170 kms (100 miles) away from the Mediterranean. We're about 180m above sea level. There is no frost, the coldest most extreme weather might be around 6 Celsius (43 F) on a cold winter night. The heat can peak well into the 40s (Celsius) in the summer. Our dry season lasts almost all year, with chances of rain sporadically between November and January.
I guess the measures you provided are all in meters?
Yes
in a sandy area I would only plant cactus and succulents, but if you manage to add lots of organic matter, that would open new possibilities.
Yes I will definitely be adding lots of organic matter.
+what do you expect to achieve there?
+how much effort are you willing to pay?
A little updated is that we have now planted grass in most of the yard and we left a 43m2 area untouched in the front yard for me to focus my attention and efforts.
I mean, I get you want some privacy and added security from a living fence, but are you looking for beauty, freshness, food security, any other things?
What I am primarily looking for with this empty lot is to practice some skills, so it's mostly educational. I would like to experiment with different permaculture practices that suit my climate, and build some vegetable gardening know-how. I would love for it to be a tiny food forest, but a little worried and obsessive about the movement of the sun and how much shade I'll end up creating with trees in this area. As you said, fruit trees want sun and do belong in the front yard.
For instance, try not to block the sight from the windows, so no trees directly in sight (maybe flowers or low shrubs). Give something else to watch at the fence, let it not be just a wall of green. Or if you must have trees, then cut the cup high so the leaves don't block the sighting.
Yes this is so important to the design, to not block the view front the window with trees, but also not putting them too far ahead and creating too much shade for vegetables or blocking the sunlight in the winter (maybe I should look at some deciduous options in that case).
A bonus if you can do it with worms or bokashi.
Have a small bokashi system for my garden, which will be contributing slowly but surely to the garden. Also been thinking about adding worm system directly into the garden but I think it'll be best to wait until it's a little more established so they can make it through the summer heat.