GEMA ART won the UNESCO international tender for the restoration works in Iraq, the project of “Urgent Preventive Works of four (4) Houses at the Erbil citadel”. The Citadel of Erbil is a very rich historical site holding evidence of many millennia of habitation, more than 8000 years old making it one of the longest continuously inhabited sites in the world. The Citadel rises 28-32 m above the surrounding with an area of over 11 hectares and average height above sea level is 430m. The mound has been formed by successive layers of settlements - Assyrian, Akkadian, Babylonian, Persian and Greek. There are over 500 houses at the Citadel, most of which are courtyard houses of brick walls, short span timber roofs and mud roofing.