Technical Specifications for Smithy Street school The key innovative and low impact design features of the building The extension includes a green roof and energy efficient boilers and heating. The proposed extension is situated to sensitively wrap around two façades of the school, complementing the original design and scale. On one end of the extension, a lightweight glass box forms a new modern entrance. The design approach is to utilise the transparency of glazing to retain visibility to the existing building façade, while adding modern materials which visually connect the building to the surrounding playground. Complimentary to the glazing, other materials such as yellow London stock brick have been chosen to connect the new extension visually with the original building. Basic building cost - £1825.00/m2 Services costs - £415.00/m2 External works - £40.00/m2 Gross floor area – 285 m2 Total area of site – 0.4225 hectares Function areas and their size - Extended School Use RM, 75.2 m2 Nursery Classroom, 80.1 m2 Areas of circulation – 66.1 m2 Areas of storage – 6.6 m2 Percentage area of grounds to be used by the community - 82 % Percentage area of building to be used by the community - 9 % Steps taken during construction process to reduce environmental impacts (innovative construction management techniques) - This contractor has signed up to the Considerate Constructors' Scheme and has regular assessments. A list of any social or economically sustainable measures achieved. Considerate constructors, green roof, energy efficient heating and hot water. Predicted electricity consumption - 55 kWh/m2 (this is based on the use of the school as it stands now). Predicted fossil fuels consumption –180 kWh/m2 Predicted renewable energy generation - 0 kWh/m2 Predicted water use – 2.2 m3/person/year Predicted % water use to be provided by rainwater or greywater - 0%