Capita Symonds has designed a living building for Ecobuild 2010, which will take place at Earl's Court in London in March.
Ecobuild is the world's biggest event for sustainable design, construction and the built environment.
The 10m×10m×8m structure has been designed by Patrick Collins and Capita Symonds land planning division Capita Lovejoy to highlight green infrastructure in the built environment.
The green cube structure features sustainable technologies such as climbing plants growing over a series of wires or trellis systems and living wall technology.
The building is housed in a landscape featuring 50 species of plants including indigenous and ornamental evergreen perennials, grasses and ferns.
Capita Symonds said the building also presented the use of living walls in conjunction with architectural products, particularly UK-grown and Forest Stewardship Council certified timber cladding.