15. Reserves
15.1 Non-distributable reserves
    2018
R000
  2017
R000
 
  Revaluation of: Investment property  16 432 551     15 854 308    
  Listed property securities  616 759     616 759    
  Derivative instruments  (19 801)    (48 886)   
  Derecognition of guarantees  11 984          
  Realised surplus/(loss) on disposal of: Investment property  168 383     165 687    
  Listed property securities  276 630     276 630    
  Subsidiaries  (131 010)    (120 907)   
  Joint venture (Hystead)  (76 094)    (163 855)   
  Associate  17 431     17 431    
  Share (African Land)  (2 709)    (2 709)   
  Non-distributable reserves of associate  125 344     125 344    
  Impairment of goodwill  (577 847)    (577 847)   
  Gain on bargain purchase (African Land)  191 235     191 235    
  Impairment of loans receivable  (191 818)    (25 377)   
  Other        (55 770)   
     16 841 038          
15.2 Share-based payment reserve(1)        
  Share-based payment 27 443   23 901  
  Total 16 868 481   16 275 944  
  (1) Relates to the amortised share-based payment cost of the Hyprop Employee Incentive Scheme (CUP)