From a The Modern House online article:

 Fitzroy Park, London N6
A stunning 6,200 sq ft space, this remarkable and sprawling house rises up through its surrounding landscaped gardens. Described by the Architects’ Journal as having a “beguilingly cave-like relationship to the outside world”, it is a bold vision of contemporary architecture in which the natural world has been thoroughly entwined with the design.

https://www.stantonwilliams.com/projects/fitzroy-park/

Recline by the pool, listen to the artificial stream winding its way through the gardens, meander across the footbridge: this home was conceived for those long, dreamy summer days.

To read more: https://www.themodernhouse.com/sales-list/fitzroy-park/