Within the core area of the city, there is a mix of apartment blocks, small family homes and family-owned stores. By regulation, all buildings are required to be designed in traditional style with Buddhist paintings and motifs. A lively weekend market near the river supplies meat, vegetables and tourist items. Most of the city's limited light industry is located south of the main bridge. Thimphu has a growing number of commercial services and offices, which provide for ever-growing local needs.