Like any large city, Singapore has faced a growing population, and with it the high dcmand for housing. In 1960, the Housuing Development boart (HDB) was founded, 50,000 new home were built. Urban planning is now under the control of the Urban Redevelopment Authority (URA). Because there are about 7,300 people per square kilometer, about 85% of the population is now living in high-rise public housing units. These are referred to as housing estate towns and are divided into neighborhoods of about 24,000 people Each neighborhood has schools, clinics, and many other businesses.