Forestside Shopping Centre (better known as Forestside) is located in Newtownbreda in the southern suburbs of Belfast, Northern Ireland. The first phase of the centre, the 39,000 square feet Sainsbury's store, opened in March 1997. The popularity of the centre has exceeded expectations with traffic congestion a problem in peak trading seasons. Sainsbury's was obliged to pay for extensive roadworks on the A24/A55 junction.