Annual Report 2022
6.6.11
Other expenses
Other expenses
​20222021
Costs associated with sale of development property-33-26
Operation expenses of investment property-9-10
Operation expenses of wind and solar farms-24-
Other expenses-23-149
​​​
Total other expenses-90-186

The costs associated with sale of development property of € 33 million (2021: € 26 million) mainly concerns the cost price of residential property sold.

The decrease of € 126 million in other expenses relates for € 90 million to the reassessment of the past service costs related to the defined benefit obligation in 2021 (2022: nil), see chapter 6.5.17.1, and the change in the provision for irrecoverable claims relating to negative interest surplus on pension portfolio in 2021 of € 24 million (2022: nil).