If a real estate vehicle uses the option to account for investment properties under the cost model, this adjustment represents the impact on NAV of the revaluation of the investment property to fair value.
The effect of straight lining of lease incentives, rent guarantees, insurance claims (for damages, lost rent, etc.) should be taken into account when valuing the property at fair value in accordance with IVS to ensure that any asset is not counted twice in the NAV.