Senglea is a fortified city in the east of Malta, mainly in the Grand Harbour area. It is one of the Three Cities, with the other two being Cospicua and Vittoriosa. With an area of just over half a square mile, it is Malta's smallest locality. It is also its most densely populated. In recent years, rehabilitation of the Cottonera Waterfront as a yacht marina has spurred a lot of interest from foreign expatriates and businessmen. This resulted in the renovation of various quaint and charming houses and a considerable appreciation of real estate in this city.