War on billionaire's row: Families clash over mega basement with swimming pool in £20m six-storey Belgravia townhouse - as neighbours fear their mansions could 'implode'
- Posted on March 11, 2026
- By Daily Mail
- 3 Views
War on billionaire's row: Families clash over mega basement with swimming pool in £20m six-storey Belgravia townhouse - as neighbours fear their mansions could 'implode'
The six-storey palatial home already boasts a hair salon, wine cellar, sauna, steam room and cinema.
