Statement Of Financial Position [Abstract]
| Concept |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Property, plant and equipment |
–
GBP
|
— | — | — | — | — | — | — | — | — |
129,000
GBP
|
— | — | — | — | — | — | — |
| Investment property |
1,685,690,000
GBP
|
— | — | — | — | — | — | — | — | — |
1,561,590,000
GBP
|
— | — | — | — | — | — | — |
| Non-current assets |
1,733,707,000
GBP
|
— | — | — | — | — | — | — | — | — |
1,754,692,000
GBP
|
— | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Trade and other current receivables |
142,155,000
GBP
|
— | — | — | — | — | — | — | — | — |
1,863,000
GBP
|
— | — | — | — | — | — | — |
| Cash and cash equivalents |
37,481,000
GBP
|
— | — | — | — | — | — | — | — | — |
51,200,000
GBP
|
— | — | — |
19,579,000
GBP
|
— | — | — |
| Current assets |
200,020,000
GBP
|
— | — | — | — | — | — | — | — | — |
53,346,000
GBP
|
— | — | — | — | — | — | — |
| Assets |
1,933,727,000
GBP
|
— | — | — | — | — | — | — | — | — |
1,808,038,000
GBP
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital |
12,462,000
GBP
|
— | — | — | — | — | — | — | — | — |
12,399,000
GBP
|
— | — | — | — | — | — | — |
| Retained earnings |
2,957,000
GBP
|
— | — | — | — | — | — | — | — | — |
141,909,000
GBP
|
— | — | — | — | — | — | — |
| Share premium |
500,386,000
GBP
|
— | — | — | — | — | — | — | — | — |
494,174,000
GBP
|
— | — | — | — | — | — | — |
| Equity |
1,217,726,000
GBP
|
3,304,000
GBP
|
500,386,000
GBP
|
2,957,000
GBP
|
704,531,000
GBP
|
12,462,000
GBP
|
778,859,000
GBP
|
494,174,000
GBP
|
5,114,000
GBP
|
141,909,000
GBP
|
1,432,455,000
GBP
|
12,399,000
GBP
|
–
GBP
|
778,859,000
GBP
|
871,310,000
GBP
|
452,000
GBP
|
8,107,000
GBP
|
84,796,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities |
605,609,000
GBP
|
— | — | — | — | — | — | — | — | — |
348,546,000
GBP
|
— | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Trade and other current payables |
26,979,000
GBP
|
— | — | — | — | — | — | — | — | — |
10,677,000
GBP
|
— | — | — | — | — | — | — |
| Current liabilities |
110,392,000
GBP
|
— | — | — | — | — | — | — | — | — |
27,037,000
GBP
|
— | — | — | — | — | — | — |
| Liabilities |
716,001,000
GBP
|
— | — | — | — | — | — | — | — | — |
375,583,000
GBP
|
— | — | — | — | — | — | — |