v3.26.3
Investment properties (Details) - GBP (£)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Investment properties      
Opening amount £ 19,433,000 £ 19,713,000  
Depreciation charge (279,000) (280,000) £ (280,000)
Closing amount 19,154,000 19,433,000 19,713,000
Rental revenue 4,146,000 2,137,000  
Direct operating expenses from properties, all of which generated rental revenue £ (1,279,000) (742,000)  
Useful lives of investment property (in years) 50 years    
Fair value of investment properties when entity applies cost model £ 38,785,000 40,855,000  
Cost      
Investment properties      
Opening amount 32,193,000 32,193,000  
Closing amount 32,193,000 32,193,000 32,193,000
Accumulated depreciation and impairment      
Investment properties      
Opening amount (12,760,000) (12,480,000)  
Closing amount £ (13,039,000) £ (12,760,000) £ (12,480,000)