Every shopping centre owner wants to generate the highest turnover possible. There are a number of ways of achieving this. "The factors that determine the value of a shopping centre include an improvement in the tenant-mix (that is, the selection of tenants which best suits a given centre), a properly prepared repositioning, and the modernisation of the centre. The latter has an influence on its attractiveness to customers that could translate into increasing both the footfall and the amounts of goods in shopping baskets. Short-term leasing of the so-called ?shopping islands' in the passages can also be a tool for generating higher revenue. Profitability can be additionally increased by way of reducing operating costs thanks to green solutions," says Anna Staniszewska, the director of the Central Europe consulting and financial analysis team at DTZ. For facility managers there are also other important issues. "We have our properties valued several times a year. For us the most importan