LHASA, Dec. 25 -- Southwest China's Tibet Autonomous Region completed the construction of 6,000 low-rent apartment units in 2013, regional government authorities confirmed Wednesday.

These low-rent apartments, with an overall floor area of 300,000 square meters, will benefit about 20,000 people in 74 cities and counties around Tibet, said the Department of Housing and Urban-Rural Development of Tibet.

Tibet is striving to ensure all low-income families with housing difficulties receive subsidies or low-rent housing by 2015, said the department.

In 2006, Tibet started the construction of low-rent apartments, one kind of low-cost housing in China, targeted to help low-income families with three or more members and experiencing housing difficulties.

To date, Tibet has invested over 2.1 billion yuan (about 345.87 million U.S dollars) in the construction of 20,000 low-rent apartment units, with an overall floor area of 1.21 million square meters.