if you lived in the Mediterranean in a remote area...how will you keep your site clean and sanitary with no modern technology?

If you live in the Mediterranean, then you must be living in a sea.

If you live in a Mediterranean region, sand and water are probably your best natural sources to keep your site clean.

in our project the houses can't have doors Use screens or Apply pesticides

anything else? like how to prevent animals from your home?

Close the doors? Use screens? Apply pesticides?

you must keep food in sealed containers, clay pots with skins or cloth or leaves as a seal, with flat rocks on top. Many pests stay near the ground. many animals avoid strong smells. fences of small branches. local palm fronds and branches are very usefull.Woven mats can cover window and door holes.