The use of non-destructive tests has become part of the accepted quality control procedures in many countries. In-situ permeability techniques are also gaining wide recognition. However, local engineering practice is still to realize full potentialities of these methods. This work presents a non-destructive locally designed and manufactured portable inexpensive air permeability test apparatus: 'The Air Permeameter'. The technique is evaluated both in the laboratory and in-situ. The developed air permeability apparatus proved successful and sensitive to the variation of concrete mix parameters, curing conditions, and age of testing.