The balcony space at Arup's No 13 Fitzroy Street office consisted of a simple but unattractive ballasted roof. The roof area was enhanced with a series of tessellated Pocket Habitats and horizontal and vertical logs to attract invertebrate and mining bee habitats.

The Pockets have been sown with wildflower seeds and sedum plants which should attract a range of wildlife in addition to providing a colourful rooftop.