The valuation is done annually by the independent expert R.Ellis, in line with the Valuation Standards published on 31 July 2003 by the Royal Institution of Chartered Surveyors (RICS) of the UK, and in line with the International Valuation Standards (IVS) published by the International Valuation Standards Committee (IVCS).

The valuation method used to value the assets for lease is Discounted Cash Flows and the following assumptions were established:

-Cash flow discount period: 10 years
-Forecast for annual net revenues and residual value at the end of the period
-Internal rate of return
-Net revenues based on contracts and expected increase in rents
-Residual value according to the specific final yield for each type of asset.