Kirsty Bertarelli , 43 , is building the basement at her three-storey mansion . Cinema , kitchen and gym will make house conducive to 'modern living ' Neighbours have been left 'apoplectic ' over the plans for 'iceberg home ' She and husband Ernesto will be first home on road to excavate one floors . Westminster council is banning 'iceberg ' developments at end of this year .
Kirsty Bertarelli , 43 , is building the basement at her three-storey mansion . Cinema , kitchen and gym will make house conducive to 'modern living ' Neighbours have been left 'apoplectic ' over the plans for 'iceberg home ' She and husband Ernesto will be first home on road to excavate two floors . Westminster council is banning 'iceberg ' developments at end of this year .