energy – domestic greenhouse gas emissions emissions from the domestic housing sector represent about 30% of the total Space heating 53% Water heating 20% Lighting 6% Appliances 16% Cooking 5%

minimum energy standards based on SAP 2005 calculation and % improvement on 2006 building regulations part LA code levelenergy performanceequivalent rating level 110% improvementEST good practice level 218% improvement level 325% improvementEST best practice / ecohomes- very good level 444% improvementecohomes- excellent level 5100% improvement level 6full zero carbonexemplar

credits available – energy – target emission rates

energy – design considerations ● orientation ● volume / surface ratio ● use of thermal mass ● insulation ● natural light ● natural ventilation ● choice of heat supply ● use of renewables ● low energy lighting ● use of conservatory sun space ● use of materials ● use of sun-shading devices mixed development, circus street, brighton by LCE Architects

minimum water standards based on consumption of internal potable water in litres / person / day using the code water calculator ● levels 1 & 2 – above proposed water regulations level (120 litres per person per day) ● levels 3 & 4 – cost effective water saving fittings (105 litres per person per day ) ● levels 5 & 6 – water recycling / rainwater collection (80 litres per person per day )

credits available – water key design considerations: - selection of fittings - rainwater harvesting - grey water recycling

minimum surface water run-off standards surface water management ● ensure that peak run-off rates and annual volumes of run-off will be no greater than the previous conditions for the development site ● requirement for all levels

credits available – surface water key design considerations: - surface water management - porous paving - green roofs

minimum materials standards environmental impact of materials ● at least 3 of the following 5 key elements to achieve at least a D rating in the 2007 green guide -roof -external floors -upper and ground floors -internal walls -window ● requirement for all levels sports hall to burgess hill school for girls by LCE Architects

credits available – materials key design considerations: - see green guide