OR Consulting Engineers acted as environmental engineers and acoustic consultants for the phased extension and refurbishment of Streatham and Clapham School. The phase 1 project involved creating a new Sixth Form Centre, catering, dining, administrative and sports facilities within a penthouse extension located on the roof of the existing school.
The phase 1 project has been designed to ensure its carbon emissions  are 30% below the requirements of Part L 2010 and to target a BREEAM ‘excellent’ rating. The project adopted environmental strategies such as:

• The adoption of pre-fabrication techniques to optimise the passive environmental performance of the new constructions.
• The adoption of glass with a low solar heat gain co-efficient, to optimise day lighting but minimise solar gains.
• The design of low energy lighting installations.
• The use of absence detection and day lighting controls.
• The adoption of heat recovery ventilation to reduce fresh air ventilation loads in winter.
• The use of demand control for the kitchen ventilation.
• The installation of air source heat pump installations.
• The installation of photo-voltaic panels.