Green credentials: Contractor HBG has completed this £17.7m office block for developer Green Property Development in Brentford, west London. Designed by Elsworth Sykes Architecture, the steel-frame block comprises four floors of offices around a central atrium and a two-storey car park. The project team included QS Davis Langdon & Everest, structural engineer Peter Brett Associates and joint M&E engineers HBG Design and Mechserve.