43,700 of them are kept vacant. In the suburbs of Chennai located in Tiruvallur and Kancheepuram districts, the figures of vacant houses 56,000 and 71,000, respectively. Of the existing housing stock in the city, about 200,000 houses are not in good condition, necessitating either to rebuild or build new units. About 26,000 households live in houses without any room and another 427,000 families (with an average size of five members) live in small dwelling units with only one room. An earlier estimate shows that there is a need to generate about 420,000 units for low-income groups by 2016. , an estimated population of 11,116 (0.16 percent) were homeless. Per Supreme Court guidelines, the city needs 65 shelters for the homeless. However, it has only 15, of which eight are functioning and two are under renovation. As of 2017, there are more than 2.2 million households, with 40 percent of the residents not owning a house. Arts and culture Museums and art galleries Chennai is home to many museums, galleries, and other institutions, many of which are free of admission charges and are major tourist attractions as well as playing a research role. The city also has one of the oldest museums and art galleries in the countryGovernment Museum, Chennai and The National Art Gallery (Chennai), established in the early 18th century. The city also hosts two art festivals annually. The "Fort Museum" inside the premises of Fort St. George is an important museum having a noteworthy collection of objects of the British era in its collection. The museum is managed by the Archaeological Survey of India and has in its possession, the first Flag of India hoisted at Fort St George after the declaration of India's Independence on 15 August 1947. Music and performing arts Chennai is a major centre for music, art and culture in India. The city is known for its classical dance shows. In 1930, for the first time in India, Madras University introduced a course of music, as part of the Bachelor of Arts curriculum. The Madras Music Season, initiated by Madras Music Academy in 1927, is celebrated every year during the month of December. It features performances of traditional Carnatic music by many artists in and around the city. The main folk music in Chennai is Gaana, a combination of various folk musics sung mainly sung in the working-class area of North Chennai. An arts