'A sanctuary without walls' was Nouvel's aim for the garden. Once inside the the north glass boundary, traffic noise nearly disappears. The south boundary 'rushes' - resin coated steel - give a transparent but entirely secure enclosure. Inside you could be in an untamed estuary with reeds, a swale and species rambler roses.
Clement idealises a child's response to nature. There are moments here he takes you on a country adventure. The whole - building and garden - makes no attempt to unify with 19th century Paris around. The genius loci (sense of place) that has been created is strong and enchanting.